1st Year Work Place Skills Flashcards
BASIC 1ST YEAR THEORY
TEMP, HUMIDITY and VENTILATION
Define heat.
Heat is a form of energy (the ability to do work); the random vibration of molecules of the body. Adding heat to a substance increases its molecular and potential energy and may cause it to under go a change of state is to melt or vaporize.
BASIC 1ST YEAR THEORY
TEMP, HUMIDITY and VENTILATION
Describe the effect that heat has on air volume.
Volume of air increases as air gets warmer.
BASIC 1ST YEAR THEORY
TEMP, HUMIDITY and VENTILATION
Describe the effect that heat has on air density.
Density of air decreases as air gets warmer.
BASIC 1ST YEAR THEORY
TEMP, HUMIDITY and VENTILATION
Describe what happens to a substances molecular structure when heat is added.
Adding heat to a substance increases its molecular motion and potential energy and may cause it to under go a change of state that is to melt or vaporize.
BASIC 1ST YEAR THEORY
TEMP, HUMIDITY and VENTILATION
Define the conduction. Heat transfer
The transfer of heat through a substance. The heat flows from particle of the substance without movement of particles themselves. Actual physical contact is for heat transfer to occur between two bodies by this means.
BASIC 1ST YEAR THEORY
TEMP, HUMIDITY and VENTILATION
Define the convection. Heat transfer
The transfer of heat by natural motion of a fluid medium, either liquid or gas. The liquid or gas is first heated and this causes it to expand and become less dense give it more volume.
BASIC 1ST YEAR THEORY
TEMP, HUMIDITY and VENTILATION
Define the radiation. Heat transfer
The transfer of heat by energy waves, similar to light waves travel in straight lines and are able to pass through a vacuum; they require no medium on which to travel.
BASIC 1ST YEAR THEORY
TEMP, HUMIDITY and VENTILATION
Define BTU’s in relationship to water.
It is the amount of heat required to raise the temperature of 1 pound of water 1* Fahrenheit.
BASIC 1ST YEAR THEORY
TEMP, HUMIDITY and VENTILATION
Define BTU’s in relationship to air.
It is the amount of heat required to raise the temperature of 55 cubic feet of air 1* Fahrenheit.
BASIC 1ST YEAR THEORY
TEMP, HUMIDITY and VENTILATION
What direction does heat travel?
Heat always travels from a warm object to a colder object. The rate of heat travel is directly proportional to the temperature difference between the two bodies.
BASIC 1ST YEAR THEORY
TEMP, HUMIDITY and VENTILATION
Define sensible heat.
Is the heat required to produce a change of temperature in a substance, but not a change of state.
BASIC 1ST YEAR THEORY
TEMP, HUMIDITY and VENTILATION
Define latent heat
Is the amount of heat required to change the state of a substance without changing its temperature.
BASIC 1ST YEAR THEORY
TEMP, HUMIDITY and VENTILATION
Define specific heat.
Is the number of Btu required to raise the temperature of 1 pound of a substance by 1*F.
BASIC 1ST YEAR THEORY
TEMP, HUMIDITY and VENTILATION
How is sensible heat measured?
By a thermometer or by the sense of touch.
BASIC 1ST YEAR THEORY
TEMP, HUMIDITY and VENTILATION
How is latent heat measured?
Latent heat is measured in Btu’s.
BASIC 1ST YEAR THEORY
TEMP, HUMIDITY and VENTILATION
Define humidity.
The quantity of water in a particular volume of air.
BASIC 1ST YEAR THEORY
TEMP, HUMIDITY and VENTILATION
Define relative humidity.
A measure of the amount of water air holds at a certain temperature. It is relative compared to the amount of water that air that same temperature can hold at 100 percent humidity or saturation.
BASIC 1ST YEAR THEORY
TEMP, HUMIDITY and VENTILATION
Define saturated air.
When the air contains the maximum amount of vapour possible for a particular temperature, the air is said to be saturated.
BASIC 1ST YEAR THEORY
TEMP, HUMIDITY and VENTILATION
Define dew point temperature.
The temperature that moisture will start to condense from the air.
BASIC 1ST YEAR THEORY
TEMP, HUMIDITY and VENTILATION
True or False : Hot air is denser (heavier) than cold air.
False.
1st YEAR RES. HVAC INSTALLATION
Heating Systems and Equipment
A furnace is a piece of equipment that will turn _____ into heat energy.
Fuel.
1st YEAR RES. HVAC INSTALLATION
Heating Systems and Equipment
Which of the following things is not required in a solid fuelled furnace? A. Blower fan B. Heat exchanger C. Fan control D. Gas valve
Gas valve
1st YEAR RES. HVAC INSTALLATION
Heating Systems and Equipment
Which of the following is not a type of furnace. A. High boy B. Low boy C. Side boy D. Counter flow
Side boy
1st YEAR RES. HVAC INSTALLATION
Heating Systems and Equipment
Which of the following is an advantage of the radial system?
A. It has automatic balancing of heat runs
B. Less material is used
C. It is simple to install
D. Long runs receive maximum pressure from the plenum
C. They are simple to install.
1st YEAR RES. HVAC INSTALLATION
Heating Systems and Equipment
Perimeter loop systems are found mostly in _______ heating situations.
Underslab.
1st YEAR RES. HVAC INSTALLATION
Heating Systems and Equipment
What is the most common distribution system used today? A. Radial B. Perimeter radial C. Perimeter loop D. Extended plenum
D. Extended plenum.
1st YEAR RES. HVAC INSTALLATION
Heating Systems and Equipment
What is the heating value of natural gas? A. 500 Btu/fat3 B. 1000 Btu/ft3 C. 1500 Btu/ft3 D. 2000 Btu/ft3 E. 2500 Btu/ft3
B. 1000 Btu/ft3
1st YEAR RES. HVAC INSTALLATION
Heating Systems and Equipment
What is the heating value of propane? A. 500 Btu/ft3 B. 1000 Btu/ft3 C. 1500 Btu/ft3 D. 2000 Btu/ft3 E. 2500 Btu/ft3
E. 2500 Btu/ft3
1st YEAR RES. HVAC INSTALLATION
Heating Systems and Equipment
What is the burner of choice for high rates of combustion in an oil furnace? A. Pan burner B. Injection burner C. Vaporizing burner D. Atomizing E. Nozzle burner
D. Atomizing burner
1st YEAR RES. HVAC INSTALLATION
Heating Systems and Equipment
What is the minimum efficiency of a gas furnace allowed to be manufactured and sold in Canada? A. 68% B. 78% C. 80% D. 88% E. 92%
B. 78%
1st YEAR RES. HVAC INSTALLATION
Heating Systems and Equipment
The inducer fan on a mixed foci end furnace is a power vent that allows you to vent out the sidewall.
True or False
False
1st YEAR RES. HVAC INSTALLATION
Heating Systems and Equipment
What are high efficiency gas furnaces also known as? A. Super furnace B. Condensing furnace C. Plastic vent furnace D. Cool heat furnaces
B. Condensing furnaces
1st YEAR RES. HVAC INSTALLATION
Heating Systems and Equipment
What are the 3 types of gas fireplaces?
- Free standing
- Zero clearance
- Insert
1st YEAR RES. HVAC INSTALLATION
Heating Systems and Equipment
In addition to wall mounted thermostats and switches, fireplaces can be controlled by a _____.
Wireless remote
1st YEAR RES. HVAC INSTALLATION
Heating Systems and Equipment
Gas logs make the fireplace look more like a wood fire. The logs can be made of. ____ and ______
Concrete. or ceramic fibre
BASIC 1st YEAR THEORY
APPRENTICESHIP PROGRAM
What are the first 2 steps in becoming an apprentice?
- Find a employment and possibly serve a probation period.
- Contact the nearest office of Alberta Apprenticeship and Industry Training by mail or phone to request the contact documents.
BASIC 1st YEAR THEORY
APPRENTICESHIP PROGRAM
What is the minimum educational requirement for entrance into a sheet metal worker apprenticeship?
The minimum requirement is Math 20 or 23, Pure Math 20 or Applied Math 20.
BASIC 1st YEAR THEORY
APPRENTICESHIP PROGRAM
Name the 3 participants in the Contract of Apprenticeship.
- The apprentice
- The employer
- Alberta Apprenticeship and Industry Training.
BASIC 1st YEAR THEORY
APPRENTICESHIP PROGRAM
Apprenticeship is a combination of 4 terms of on the job and technical training. How many hours of on the job training is an apprentice sheet metal worker expected to complete in order to qualify for the next period of apprenticeship?
1725hrs
BASIC 1st YEAR THEORY
APPRENTICESHIP PROGRAM
When should the employer, journeyman and apprentice fill out the Verification of On the Job Training and Work Experience in the Blue Book?
Upon the completion of each period of training or when there is a change of employer.
BASIC 1st YEAR THEORY
APPRENTICESHIP PROGRAM
When should the journeyman sign off on a task from the On the Job Tasks Checklist in the Blue Book?
When the apprentice has reached an acceptable level of competence in performing the task without supervision.
BASIC 1st YEAR THEORY
APPRENTICESHIP PROGRAM
On what is the rate of pay for an apprentice based?
In the sheet metal worker trade, regulation rates of pay are stipulated as a % of the journeyman’s wages. These wages can vary from employer to employer, but are based on wages negotiated by the Sheet Metal Worker International
Association.
BASIC 1st YEAR THEORY
APPRENTICESHIP PROGRAM
Attending technical school without returning to work depends on which 2 factors?
- The availability of a suitable training space.
2. Whether or not you have passed the current training period’s exams.
BASIC 1st YEAR THEORY
APPRENTICESHIP PROGRAM
Who is responsible for marking the fourth period sheet metal worker practical exams?
Representatives from industry.
BASIC 1st YEAR THEORY
APPRENTICESHIP PROGRAM
What is the primary purpose of the Red Seal Program?
To allow trades people to work in other provinces without having to be re-certify.
BASIC 1st YEAR THEORY
APPRENTICESHIP PROGRAM
From what group are members of the LAC and PAC chosen?
Representatives from industry are appointed by the Apprenticeship and Industry Training Board to sit on Local Apprenticeship Committees and a Provincial apprenticeship Committee.
BASIC 1st YEAR THEORY
APPRENTICESHIP PROGRAM
Who is responsible for monitoring the apprenticeship system and the progress of apprentices in their trade at the local level?
The Local Apprenticeship Committee (LAC)
BASIC 1st YEAR THEORY
APPRENTICESHIP PROGRAM
Who is responsible for identifying the training needs and course content of a particular trade?
The Provincial Apprenticeship Committee (PAC)
BASIC 1st YEAR THEORY
Work Place Safety
A tired employee is just as hazardous as an employee under the influence of a impairing substance. True or false.
True
BASIC 1st YEAR THEORY
Work Place Safety
What are the 3 primary groups responsible for the safety in the work place?
- The employee
- The employer
- Equipment or material suppliers.
BASIC 1st YEAR THEORY
Work Place Safety
The law requires most workplaces to have regular safety meetings. True or false.
True
BASIC 1st YEAR THEORY
Work Place Safety
The maximum penalty for a 1st offence under the OH&S Act is.
$500,000 and or 3 months in prison.
BASIC 1st YEAR THEORY
Work Place Safety
Industrial protective headwear must comply with who’s standards
Canadian Safety Standards (CSA)
BASIC 1st YEAR THEORY
Work Place Safety
When using a full-face visor, safety glasses are not required.
YES safety glasses are required.
BASIC 1st YEAR THEORY
Work Place Safety
What is the maximum amount of time you can be exposed to 88dBA of sound without hearing protection before hearing damage may occur?
- 15 minutes
- 2 hours
- 4 hours
- 8 hours
4 Hours.
BASIC 1st YEAR THEORY
Work Place Safety
Identify the 3 elements necessary for combustion to occur.
- Fuel
- Air
- Heat (ignition)
BASIC 1st YEAR THEORY
Work Place Safety
List the 4 classifications of fires.
- Class A - Ordinary combustibles
- Class B - Flammable liquids
- Class C - Electrical
- Class D - Combustible metals
BASIC 1st YEAR THEORY
Work Place Safety
What is the purpose of Part II of the OH&S Act, Regulation and Code?
It’s purpose is to ensure that every work site has then equipment, supplies and trained staff necessary to provide 1st aid care in the event of a workplace illness or injury.
BASIC 1st YEAR THEORY
Work Place Safety
What are the 4 main categories of workplace hazards?
- Biological
- Chemical
- Physical
- ergonomic.
BASIC 1st YEAR THEORY
Work Place Safety
What is the hazard your exposed to when you find a dead animal in a unit or duct?
Biological
BASIC 1st YEAR THEORY
Work Place Safety
What is the hazard that describes a back injuries due to a poor fit between you and your work environment?
Ergonomic
BASIC 1st YEAR THEORY
Work Place Safety
A tool is not working properly and is not taken out of service would be classified as a __________ type of hazard.
Physical
BASIC 1st YEAR THEORY
Work Place Safety
Asbestos only is a hazard when its disturbed. True or false.
True.
BASIC 1st YEAR THEORY
WHMIS
What is the WHMIS label that is a cylinder?
Class A Compressed Gas
BASIC 1st YEAR THEORY
WHMIS
What is the WHMIS label that is a fire with a small fire inside?
Class B Flammable & Combustible Material
BASIC 1st YEAR THEORY
WHMIS
What is the WHMIS label that is a circle with a fire on it?
Class C Oxidizing Material
BASIC 1st YEAR THEORY
WHMIS
What is the WHMIS label that is a skull and cross bones?
Class D Division 1 - Poisonous and Infectious Material; Immediate and serious toxic effects
BASIC 1st YEAR THEORY
WHMIS
What is the WHMIS label that is Tee on a small circle?
Class D Division 2 - Poisonous and Infectious Material; Other toxic effects.
BASIC 1st YEAR THEORY
WHMIS
What is the WHMIS label that is a circle with 6 curved horns coming out of it?
Class D Division 3 - Poisonous and Infectious Material; Biohazardous infectious material.
BASIC 1st YEAR THEORY
WHMIS
What is the WHMIS label that is 2 test tubes pouring liquid onto a hand and bar?
Class E Corrosive Material.
BASIC 1st YEAR THEORY
WHMIS
What is the WHMIS label that is an R with a test tube inside of it?
Class F Dangerous Reactive Material.
BASIC 1st YEAR THEORY
WHMIS
Which statement is true.
The MSDS must be:
1. Printed in a different colour from the container to which it is attached.
2. Provided or prepare by the employer
3. Made of plastic or some other durable material.
4.Prepared by the employee who is actually using the product.
- Provided or prepare by the employer
BASIC 1st YEAR THEORY
WHMIS
Which statement is true.
The supplier label is:
1. Attached to the container in which the product is shipped.
2. Attached to the container in which the product is stored.
3. Mounted on the wall of the shop near where the product is used.
4. Made available to all employees using product.
- Attached to the container in which the product is shipped.
BASIC 1st YEAR THEORY
WHMIS
Worker education is the responsibility of the:
- Employer
- Employee
- Training institute
- Supplier of the product.
- Employer
BASIC 1st YEAR THEORY
WHMIS
A MSDS must be updated;
- once a year
- When it becomes too dirty or worn out to read.
- At a discretion of the plant safety officer.
- Once every 3 years or sooner if new information becomes available.
- Once every 3 years or sooner if new information becomes available.
BASIC 1st YEAR THEORY
WHMIS
Name the 9 pieces of information that must be included on an MSDS.
- Product information
- Hazardous ingredients
- Physical data
- Fire or explosion hazards
- Reactivity data
- Toxicology properties
- Preventive measures
- 1st aid measures
- Preparation Information.
BASIC 1st YEAR THEORY
WHMIS
What section of the MSDS would contain information on PPE?
The section on Preventive Measures.
BASIC 1st YEAR THEORY
WHMIS
Are all the ingredients of the controlled product listed in the MSDS?
NO. Only the ingredients considered to be a hazardous and their specific concentrations in that controlled product.
BASIC 1st YEAR THEORY
WHMIS
What information would you expect to find in the 1st aid section of an MSDS?
Specific measures to be taken for eye or skin contact or overexposure due to inhalation or ingestion.
BASIC 1st YEAR THEORY
Electrical Safety
Why is it so important to work safely with or near electricity?
The voltage of the electricity and the available electrical current in regular businesses and homes has enough power to cause death by electrocution.
BASIC 1st YEAR THEORY
Electrical Safety
Define dynamic electricity?
Is the uniform motion of electrons through a conductor (this is known as electric current).
BASIC 1st YEAR THEORY
Electrical Safety
What kinds of injuries result from electrical currents?
- When electricity arcs from an exposed energized conductor. It will travel through gas to person who is grounded.
- Thermal burns from the heat generated by electric arc.
- Thermal burns from heat radiated from the an electric arc flash.
- An arc blast can include a potential pressure wave.
- Muscle contractions or a startle reaction can cause worker to fall from heights.
BASIC 1st YEAR THEORY
Electrical Safety
What should you do if your vehicle comes in contact with a power line?
- DON’T get out of vehicle.
- Call 911 and the utility service.
- Wait till the electrical service company comes and tells you it is safe.
- Never try to rescue another person.
- If you have to jump more than 1.5-2feet away from vehicle with arm and legs together.
- After jump shuffle for 10 more feet.
BASIC 1st YEAR THEORY
Ladders, Scaffold and Lifts
What is accountable for 25% of loss time workplace claims?
Falling.
BASIC 1st YEAR THEORY
Ladders, Scaffold and Lifts
What factors determine the ladders you choose for a job?
Type of project, the height you will be working at, specific to task.
BASIC 1st YEAR THEORY
Ladders, Scaffold and Lifts
Which step ladder may be used by 2 workers at the same time?
The double or twin step ladder.
BASIC 1st YEAR THEORY
Ladders, Scaffold and Lifts
What is the maximum capacity of an extra heavy-duty industrial type ladder?
- 300lbs
- 225lbs
- 250lbs
- 375lbs
- 300lbs
BASIC 1st YEAR THEORY
Ladders, Scaffold and Lifts
Which type of material is bested suited for working near electricity or over head power lines?
Fibreglass
BASIC 1st YEAR THEORY
Ladders, Scaffold and Lifts
The side rails of a portable extension ladder should extend at least _____above a platform, landing or parapet.
They should extend at least 1 meter.
BASIC 1st YEAR THEORY
Ladders, Scaffold and Lifts
What colour should a wood ladder be painted?
Never paint a ladder other than by being preserved with a transparent protective coating.
BASIC 1st YEAR THEORY
Ladders, Scaffold and Lifts
List the 5 factors to consider when choosing the correct scaffold for a job?
- Availability
- Cost
- Workforce expertise
- Site parameters
- Expected loads and terrain.
BASIC 1st YEAR THEORY
Ladders, Scaffold and Lifts
What is the widely used scaffold system?
Frame scaffolds.
BASIC 1st YEAR THEORY
Ladders, Scaffold and Lifts
Which part of the scaffold system must be matched to site conditions?
The base.
BASIC 1st YEAR THEORY
Ladders, Scaffold and Lifts
Name 2 types of suspended scaffolds.
- Work cage or Boson chair.
2. Swing stage.
BASIC 1st YEAR THEORY
Ladders, Scaffold and Lifts
Most construction sites do not require licensed people to operate lifts. True or False.
False
BASIC 1st YEAR THEORY
Ladders, Scaffold and Lifts
An employer shall ensure that the height of a rolling scaffold is no more than _____ times the dimension of its smallest base.
Is no more than 3 times its smallest base
BASIC 1st YEAR THEORY
Ladders, Scaffold and Lifts
Name the 3 ways material lifts can be powered.
- Manually
- CO2 bottle
- Compressed air
BASIC 1st YEAR THEORY
Rigging
A right lay rope has:
- Strands twisted to the left, yarns twisted to the right.
- Strands twisted to the right, yarns twisted to the right.
- Strands twisted to the left, yarns twisted to the left.
- Strands twisted to the right, yarns twisted to the left.
- Strands twisted to the right, yarns twisted to the left.
BASIC 1st YEAR THEORY
Rigging
The strongest synthetic fibre rope is;
- manila
- hemp
- polypropylene
- nylon
- nylon
BASIC 1st YEAR THEORY
Rigging
Safe working load is the ;
- Safety factor divided by the breaking strength
- Breaking strength divided by the safety factor
- Safe way to lower a load
- The ultimate tensile strength
- Breaking strength divided by the safety factor
BASIC 1st YEAR THEORY
Rigging
The type of knot or bend used for tying 2 ropes together of different diameters together is the;
- Bowline knot
- Sheet bend
- Carrick bend
- Sheepshank knot
- Sheet bend
BASIC 1st YEAR THEORY
Rigging
A knot in a rope;
- Increases the rope strength by 50%
- Increases the rope strength by 25%
- Decreases the rope strength by 50%
- Decreases the rope strength by 25%
- Decreases the rope strength by 50%
BASIC 1st YEAR THEORY
Rigging
How is a fist grip clip different than a wire rope clip?
The fist grip has 2 identical components.
BASIC 1st YEAR THEORY
Rigging
Why is a thimble used in a eye on a wire rope sling?
The thimble helps prevent premature wear of the slings eye.
BASIC 1st YEAR THEORY
Rigging
How many wire rope clips are recommended to be applied to a 1” diameter wire rope to make an eye in the rope.
4 wire rope clips are required.
BASIC 1st YEAR THEORY
Rigging
How is the lifting capacity of a synthetic fibre rope sling identified?
By a colour-coded non-loadbearing cover placed over the sling.
BASIC 1st YEAR THEORY
Rigging
When are shoulderless eyebolts used?
For vertical hoists only.
BASIC 1st YEAR THEORY
Rigging
The type of chain hoist most suitable for a horizontal pull is what?
Come along
BASIC 1st YEAR THEORY
Rigging
When 2 blocks are connected together by a rope, they become a machine, commonly known as what?
Block and tackle system
BASIC 1st YEAR THEORY
Rigging
Why must a crane be set up as level as possible?
So the lifting capacity of the crane is not effected.
BASIC 1st YEAR THEORY
Rigging
What is used to increase the crane’s stability?
Out riggers
BASIC 1st YEAR THEORY
Rigging
A crane is capable of the heaviest lifts when its boom is very near the horizontal. True or False.
False. Maximum lifting is when the boom is near vertical.
BASIC 1st YEAR THEORY
Rigging
What does the hand signal mean when worker is moving arms horizontally at chest level back and forth?
Emergency stop.
BASIC 1st YEAR THEORY
Rigging
What does the hand signal mean when worker is has arm at 90* with as a fist and thumb pointing down?
Boom down.
BASIC 1st YEAR THEORY
Rigging
What does the hand signal mean when worker is has arm at 90* with as a fist and thumb pointing down at him other hands open palm?
Lower boom slowly
BASIC 1st YEAR THEORY
Rigging
What does the hand signal mean when worker is has arm at 90* with as a fist and thumb pointing down moving fingers out and in?
Lower boom and raise the load.
BASIC 1st YEAR THEORY
Rigging
What does the hand signal mean when worker is has arm at 90* with other arm underneath with fingers pointing up moving bottom arm up and down.
Raise load slowly
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Res. HVAC Components
Special fresh air ventilation fittings must be used to connect the fresh air duct to the return trunk duct.
True or False.
False.
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Res. HVAC Components
The combustion air termination is used to do what?
Keep cold air from dropping into the furnace room.
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Res. HVAC Components
Both factory built chimneys and vents have a system of parts that are ______ by a recognized testing agency.
Certified.
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Res. HVAC Components
Installations requiring you to run a forced air heating under the concrete slab are known as what?
Underslab heating
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Res. HVAC Components
Roof jacks used on dryer vents are available without which of the following?
Bird screens
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Res. HVAC Components
The material used for venting of the fan to the outside must be metal duct with insulation and a vapour, such as foil back insulation. True or False
False.
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Res. HVAC Components
Furnaces require air to fuel the fire inside of them. This is called what?
Combustion air.
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Res. HVAC Components
The entire underslab ducting system must slope _______ the furnace.
Back to the furnace.
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Res. HVAC Components
When a return air branch run is finished on the bottom with a drywall ceiling. The bottom of the branch run is finished with what?
Drywall.
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Res. HVAC Components
What is the uncontrolled leakage of air from a building?
Exfiltration
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Res. HVAC Components
What does a type L-vent construction consist of?
An outer casing of Galvalume/airspace/inner liner of stainless steel.
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Res. HVAC Components
The ductwork coming off the plenum for underground heating installations will be ______ for the strength and to make it easier to seal against moisture in the ground.
Round.
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Res. HVAC Components
- is 14” wide by 8” high
- is 14” high by 8” wide
- covers a 14” by 8” hole
- has a free area of 14” X 8”
- covers a 14” by 8” hole
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Res. HVAC Components
What is the heart of the heating, ventilation and air-conditioning (HAVA) system?
The air recirculation fan.
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Res. HVAC Components
The air is _____ from the central heating or cooling unit by the supply air system.
Distributed.
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Res. HVAC Components
The return air part of an HVAC system consists of the parts to bring air back from the ______ to the furnace.
Occupied space.
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Res. HVAC Components
Rectangular duct takeoffs include all of the following except;
- Top take-offs
- Side take-offs
- Universal take-offs
- Saddle take-offs
- Saddle take-offs.
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Res. HVAC Components
The ratio between the width and depth of duct should never exceed what?
4(width) by 1 (depth)
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Res. HVAC Components
Name the 4 things that can cause dynamic loss in an airstream.
- Material duct is constructed from (smooth or rough)
- The shape of the duct
- Change in direction
- Change in cross sectional area.
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Res. HVAC Components
What is the dynamic air loss of flexible duct compared to smooth duct?
10 times more than smooth duct.
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Res. HVAC Components
Dynamic losses occur in both rectangular and round duct. True or False
True
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Res. HVAC Components
You should always install 2 elbows together (back to back). True or False
False.
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Res. Heating and Equipment
A furnace is a piece of equipment that is used to change ______ into heat energy.
Fuel
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Orthographic Projection
Having this ability will make you successful in you sheet metal career. What type of drawing must you able to read?
Orthographic drawings
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Orthographic Projection
Identify orthographic type drawings.
Drawing 2 dimensional drawings and visualizing 3 dimensional objects.
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Orthographic Projection
Construction types prints are drawn in what 2 categories
- pictorial type drawing (3 dimensional)
2. Orthographic type drawing (2 dimensional)
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Orthographic Projection
What type of line is not on a pictorial drawing?
A hidden line.
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Orthographic Projection
Can you take enough measurement off a pictorial drawing to make a fitting?
No, because there are no hidden lines.
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Orthographic Projection
Can you make a fitting from an orthographic drawing?
Yes, because you have a picture of each side of the object scaled next to each other in the same scale.
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Orthographic Projection
What are the different positions of a orthographic drawing?
- Top
- Front
- Right
- Left
- Rear
- Bottom
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Orthographic Projection
Is it always necessary to show all 6 sides or a orthographic object
No, unless the object is extremely complex. You only need to shown the information that represents the complete object.
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Orthographic Projection
What do you need to understand when looking at an orthographic drawing?
Think of the object as being as being made of a transparent material so you can see both the near and the far edges when you view one face.
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Orthographic Projection
What do you call one surface imaginary of an orthographic drawing?
Viewing plane
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Orthographic Projection
What are object lines on a drawing?
Dark solid lines that outline at you would see an object.
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Orthographic Projection
What are hidden lines on a drawing?
Are broken lines used to show internal or hidden shapes in an object
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Orthographic Projection
What is the proper order to show orthographic views?
- The edges of the object are always in line from one view to another are drawn in the same scale.
- Top view (TV) is at the top of the drawing.
- Front view (FV) is directly below top view.
- Right side view (RSV) is to the right of (FV)
- Left side view (LSW) is to the left of (FV)
- Back view (BV) is far side of either (RSV) or (LSV)
- Bottom view (BOTTOM) is directly below (TV)
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Orthographic Projection
How do you determine what is the best view of an object to use in orthographic draws?
The side that has the most information shown and the least hidden lines which will give you the minimum number of views
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Single Line Drawings Gas Fitter
What are the 3 basic views of orthographic drawing?
- Front view
- Top view
- And 1 side view
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Single Line Drawings Gas Fitter
Reading construction drawings are similar to reading and book BUT what is the one difference?
Instead of relying on words, drawings use symbols to convey the meaning.
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Single Line Drawings Gas Fitter
What are the 2 categories drawings can be?
- Pictorial
2. Othorgraphic
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Single Line Drawings Gas Fitter
What are the most common pictorial drawing?
- Perspective
- oblique
- isometric
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Single Line Drawings Gas Fitter
Define Perspective Drawing
A drawing that has parallel object lines connect to a vanishing point. This can be shown as front, top, and sides that connect on a vanishing point
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Single Line Drawings Gas Fitter
Define Oblique Drawing
A drawing that is presented with the front of the object being drawn square to the paper. Vertical lines are drawn 90* to the horizontal lines. Other object line are drawn 30* or 45* from the front view. It does NOT have to be proportional..
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Single Line Drawings Gas Fitter
Define Isometer Drawing
Term means equal measure. They have lines drawn at an angle of 30* from horizontal for both length and width. Vertical lines represents height.
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Single Line Drawings Gas Fitter
The 1 problem with pictorial drawing?
They don’t accurately duplicate exact shapes and angles.
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Single Line Drawings Gas Fitter
What type of drawing style shows the exact shape of the objects individual surfaces?
Orthographic projection. Also called third angle projection, multiple view projection and working drawing
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Single Line Drawings Gas Fitter
Define Orthographic Projection
2 or more views of the shapes of a 3 dimensional object. Where important information about the object is stated on 2 dimensions
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Single Line Drawings Gas Fitter
Define Orthographic Drawing
Drawing that shows separate views of the surfaces would be seen if you were to stand in different positions in relation to the object. Views commonly used are top, front and right side.
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Single Line Drawings Gas Fitter
Define Sectional Drawing
Drawing that allows you to see inside of a piece of equip or internal of a construction building. It gives a understanding of its composition than hidden lines.
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Single Line Drawings Gas Fitter
With sectional drawings define cross-hatching
This is where on the drawing sections are filled with diagonal lines to represent solid material.
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Single Line Drawings Gas Fitter
What is the difference between sectional drawing verse orthographic drawings?
With sectional drawings you need to image where the cut is taken and what the view of the object would be at the particular point. You have to also imagine which is cut and which is not.
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Single Line Drawings Gas Fitter
What is the process to convert Isometer drawings to orthographic drawings?
- Identify the front, top and right side view.
- Then select the best view for isometric drawing
- Draw front first view, then draw the two other corresponding views.
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Single Line Drawings Gas Fitter
Define Isometric Axis
A 3 dimensional drawing which the horizontal axes are drawn at 30* from true horizontal plane.
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Single Line Drawings Gas Fitter
What type of drawings are used for prefabrication purposes?
Isometric
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Single Line Drawings Gas Fitter
What type of set square do you use when drawing isometric drawings?
30/60 set square. if no set square use isometric paper (with the lines at 33* and 90*)
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Single Line Drawings Gas Fitter
With orthographic drawings; where is north?
North is either to the top or to the left hand side of the page.
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Single Line Drawings Gas Fitter
With isometric drawings; where is north?
North can be oriented to any 4 corner.
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Single Line Drawings Gas Fitter
With isometric drawings information which never changes when converted into orthographical?
Up or down axis which represent a vertical line as seen on the orthographical drawing.
BASIC 1st YEAR THEORY
Ladders, Scaffold and Lifts
What is type of ladder you can stand the very top of.
Stepstool
BASIC 1st YEAR THEORY
Ladders, Scaffold and Lifts
What makes Single stepladders the popular of styles.
- Can be used in low or medium heights.
2. Accessories are variable for holding tools and small parts.
BASIC 1st YEAR THEORY
Ladders, Scaffold and Lifts
What stepladder can allow 2 workers on at one time?
Double or Twin Stepladder
BASIC 1st YEAR THEORY
Ladders, Scaffold and Lifts
What is different about a platform ladder?
It has a large work area on the top that has hand rails on 3 sides
BASIC 1st YEAR THEORY
Ladders, Scaffold and Lifts
Define what is a Single ladder.
Single section, non-extendable ladders .
BASIC 1st YEAR THEORY
Ladders, Scaffold and Lifts
3 Things to conceder when choosing the right ladder for the job.
- Your height
- The height you want to reach
- Style of ladder.
BASIC 1st YEAR THEORY
Ladders, Scaffold and Lifts
What can you not do on a ladder.
Stand on the top 2 rungs.
BASIC 1st YEAR THEORY
Ladders, Scaffold and Lifts
What is the maximum load capacity for
Super Heavy Duty ladder?
170kg (375lb)
BASIC 1st YEAR THEORY
Ladders, Scaffold and Lifts
What is the maximum load capacity for
Extra Heavy Duty ladder?
136kg (300lb)
BASIC 1st YEAR THEORY
Ladders, Scaffold and Lifts
What is the maximum load capacity for
Heavy Duty ladder?
113kg (250lb)
BASIC 1st YEAR THEORY
Ladders, Scaffold and Lifts
What is the maximum load capacity for
Medium Duty ladder?
102kg (225lb)
BASIC 1st YEAR THEORY
Ladders, Scaffold and Lifts
What are 3 types of material that ladders can be made of?
- Wood - non-conductive when dry
- Aluminium - strong, light and non-corrosive
- Fibreglass - non-conductive and strong
BASIC 1st YEAR THEORY
Ladders, Scaffold and Lifts
What type of ladders do you never use near electricity?
- Aluminum
- Waterlogged wood
3 .Dirty wood
BASIC 1st YEAR THEORY
Ladders, Scaffold and Lifts
What is the proper setback rule for leaning a ladder against a wall?
4 to 1 Ratio.
The set back must be 1 meter for every 4 meters of length.
BASIC 1st YEAR THEORY
Ladders, Scaffold and Lifts
What must you always do when setting up an extension ladder?
Ensure that the locks are fully engaged that the fly is in front of the base before climbing.
BASIC 1st YEAR THEORY
Ladders, Scaffold and Lifts
What are the DO NOTS in ladder use.
- Don’t set up ladder on slipper ground. (Have non-slip devices on feet)
- Don’t climb a closed stepladder
- Don’t lean out on an ladder. Keep body center to ladder.
- Use caution when moving material on a ladder
- Don’t seat on the top (paint shelf) of a ladder.
- Don’t over weight (load)
- Must face the ladder when on it.
BASIC 1st YEAR THEORY
Ladders, Scaffold and Lifts
Define scaffold
Temporary elevated work platforms and supporting structures designed to support workers, equipment and material.
BASIC 1st YEAR THEORY
Ladders, Scaffold and Lifts
What are the 5 types of scaffolding?
- Frame scaffolds
- Free-standing or rolling. (Bakers Scaffold)
- Tube and coupler (tube and clamp)
- Modular system scaffold
- Suspended scaffold. (1 person Boson chair or 2 people swing stage.
BASIC 1st YEAR THEORY
Ladders, Scaffold and Lifts
How is a frame scaffold constructed?
They are a welded assembly of tubular to make a “frame”
BASIC 1st YEAR THEORY
Ladders, Scaffold and Lifts
What are the most common frame scaffold dimenions?
Width 3’ (0.914m) and 5’ (1.524m)
Length 5’ (1.524m) and 6’6” (1.981m)
BASIC 1st YEAR THEORY
Ladders, Scaffold and Lifts
What is a crossbrace in scaffolding?
A rod that connects 2 frames and support lateral supports and rigidity.
BASIC 1st YEAR THEORY
Ladders, Scaffold and Lifts
What is a BASE in scaffolding?
Are the feet that go on the frames. Examples are caster wheels, baseplates, screwjacks with baseplates and socket jacks.
BASIC 1st YEAR THEORY
Ladders, Scaffold and Lifts
What is a BRACKET in scaffolding?
Is an accessory that is used to extend the work platform the side or ends of the assembly.
BASIC 1st YEAR THEORY
Ladders, Scaffold and Lifts
What is a RETAINER PIN used for scaffolding?
To hold to components of the frame together and ensure that the pin itself can not come loose.
BASIC 1st YEAR THEORY
Ladders, Scaffold and Lifts
What makes tub and coupler scaffold unique?
It can be erected on un-level ground.
BASIC 1st YEAR THEORY
Ladders, Scaffold and Lifts
What are the 4 components of tube and coupler scaffold?
- Vertical Tubes
- Horizontal Tubes
- Diagonal Tubes
- Couplers
BASIC 1st YEAR THEORY
Ladders, Scaffold and Lifts
What is the advantage that MODULAR SYSTEMS have over TUBE AND COUPLER?
Modular scaffold does not require a degree of expertise compared to tube and coupler.
BASIC 1st YEAR THEORY
Ladders, Scaffold and Lifts
According to the OH&S Act is this statement true or False?
CLAUSE 334
An employer shall ensure that;
The height of a free standing or rolling wheel scaffold is not more than 3 times the smallest dimension of its base?
True
BASIC 1st YEAR THEORY
Ladders, Scaffold and Lifts
According to the OH&S Act is this statement true or False?
CLAUSE 334
A worker shall CAN retain on a rolling scaffold while being moved only if
1. The height is not more then twice the shortest dimension of the base.
2. The surface being rolled is firm, level and free of hazards.
True
BASIC 1st YEAR THEORY
Ladders, Scaffold and Lifts
According to the OH&S Act is this statement True or False?
CLAUSE 325
An employer must ensure that a scaffold is designed and constructed to support at lease 4 times the load that may be impose on it.
True
BASIC 1st YEAR THEORY
Ladders, Scaffold and Lifts
According to the OH&S Act is this statement True or False?
CLAUSE 324
An employer must ensure a scaffold is;
Anchored by one tie in for each 4.6 meter vertical and one tie in for each 6.4 meter horizontal interval.
True
BASIC 1st YEAR THEORY
Ladders, Scaffold and Lifts
What are the components of a GUARDRAIL System?
- Guardrails (top and midrail)
- Guardrail posts
- Toe board.
BASIC 1st YEAR THEORY
Ladders, Scaffold and Lifts
According to the OH and S Act is this statement
True or False?
CLAUSE 315
A guardrail required by this regulation must have;
1. A horizontal top member that is not less than 920mm ( 3’ ) nor more than 1070mm ( 3’6” ) above the base.
True
BASIC 1st YEAR THEORY
Ladders, Scaffold and Lifts
According to the OH and S Act is this statement
True or False?
CLAUSE 329
An employer ensure that a solid sawn lumber scaffold plank is;
1. graded as scaffold grade or better
2. Sized 51mm ( 2” ) X 254mm ( 10” ) lumber
True
BASIC 1st YEAR THEORY
Ladders, Scaffold and Lifts
According to the OH and S Act is this statement
True or False?
CLAUSE 321
An employer must ensure that;
Toe boards are not taller that 140mm ( 5 1/2” ) and have the bottom of the toe guard no higher than 6mm from the working area base.
True
BASIC 1st YEAR THEORY
Ladders, Scaffold and Lifts
According to the OH and S Act is this statement
True or False?
CLAUSE 3
An employer must ensure that;
Toe boards are installed when guardrails are in place or where there is a possible for material to fall more than 1.8m.
True
BASIC 1st YEAR THEORY
Ladders, Scaffold and Lifts
According to the OH&S Act is this statement
True or False?
CLAUSE 329
An employer must ensure that a scaffolding plank;
Extends no loss than 150mm ( 6”) and not more than 300mm (11 3/4’) beyond a ledger
True
BASIC 1st YEAR THEORY
Ladders, Scaffold and Lifts
According to the OH and S Act is this statement
True or False?
CLAUSE 329
An employer must ensure that all light duty scaffold platforms are not less than 500m ( 18 5/8”) wide.
Heavy duty scaffolding is not less than 1m ( 3” 3 3/8.”)wide.
True
BASIC 1st YEAR THEORY
Ladders, Scaffold and Lifts
What at are the 2 types of mechanical lifts?
- Scissor lift
2. Boom lift
BASIC 1st YEAR THEORY
Ladders, Scaffold and Lifts
According to the OH&S Act is this statement
True or False?
CLAUSE 256
A worker not operate powered mobile equipment unless the worker;
1. is trained to safety operate the equipment.
True
BASIC 1st YEAR THEORY
Ladders, Scaffold and Lifts
According to the OH and S Act is this statement
True or False?
CLAUSE 256
The operator of powered mobile equipment must;
ensure the passengers in the powered mobile equipment use the seat belts and other safety equipment in the powered mobile equipment
True
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Res. Heating and Equipment
What is the heart of an HVC unit?
Air recirculation equipment
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Res. Heating and Equipment
List the 4 components of the furnace.
- fuel supply components
- air supply components
- heat exchanger
- safety controls
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Res. Heating and Equipment
Between these 3 fuel sources which use the same the same burner components and which don’t/
Natural gas and propane systems use similar burning systems.
Oil furnaces use a different control system but have some type of controls and burner.
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Res. Heating and Equipment
Define gas valve.
is an on-off shut off device that regulates the flow and pressure of the fuel.
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Res. Heating and Equipment
Natural gas furnaces can be easily converted into a propane furnace. True or False
True
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Res. Heating and Equipment
What type of burners do oil furnaces us.
Atomizing type burner or oil burner gun.
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Res. Heating and Equipment
What are 2 types of solid fuel?
- Coal
2. Wood
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Res. Heating and Equipment
Define Draft Hood
A component only found on old low efficiency furnace that cools the products of combustion as they exit the flue. This done by introducing dilution air.
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Res. Heating and Equipment
What is a major safety concern with draft hoods?
If exaust air is blocked, then CO2 ill back flow into the furnace. The CO2 is then reburnt which makes C0 (carbon monoxide). CO2 is deadly.
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Res. Heating and Equipment
Define Heat Exchanger
The component of the furnace that separated the circulating air from the products of combustion.
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Res. Heating and Equipment
What are 2 types of safety controls.
- One tyoe monitors the flame and shuts off the fuel if flame failure
- Other type monitors the temperature and shuts off the fuel if heat rises too high
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Res. Heating and Equipment
Define Thermocouple
Ode furnaces use a pilot light sensor to control the gas vale and stop fuel in cause of fuel if the heat rises too high.
1st YEAR INTRO TO BLUEPRINT READING AND RESIDENTAIL HVAC
Res. Heating and Equipment
Are the flame sensors and temperature controls very similar between natural gas and propane furnaces.
Yes
1st YEAR SIMPLE LAYOUT DEVELOPMENT
Introduction to Drafting
There are generally two _______ for each rectangular fittings.
- arcs
- gores
- cheeks
- mitre lines
- cheeks
1st YEAR SIMPLE LAYOUT DEVELOPMENT
Introduction to Drafting
A section of a round elbow, which is basically a straight section cut at an angle at one or both ends, is known as a/an:
- apex
- pattern
- gore
- triangle
- gore
1st YEAR SIMPLE LAYOUT DEVELOPMENT
Introduction to Drafting
The _____ is the term usually given to the outside of the elbow.
- throat
- net pattern
- heel
- curved line
- heel
1st YEAR SIMPLE LAYOUT DEVELOPMENT
Introduction to Drafting
A _____ is used to draw horizontal lines and as a base for using other drafting tools.
- set square
- T-square
- protractor
- French curves
- T-square
1st YEAR SIMPLE LAYOUT DEVELOPMENT
Introduction to Drafting
A _____ may be used to draw angles that cannot be drawn with set squares.
- protractor
- templates
- dividers
- flexible curves
- protractor
1st YEAR SIMPLE LAYOUT DEVELOPMENT
Introduction to Drafting
A _____ is used to draw arcs and circles.
- French curves
- T-square
- Compass
- Dividers
- Compass
1st YEAR SIMPLE LAYOUT DEVELOPMENT
Simple Layout
Patterns that are drawn directly onto the metal without using any orthographic views or formal development methods are referred to as?
Simple layout
1st YEAR SIMPLE LAYOUT DEVELOPMENT
Simple Layout
Many objects that have one pair of parallel sides can be developed using what method?
Parallel line development
1st YEAR SIMPLE LAYOUT DEVELOPMENT
Simple Layout
Objects whose sides meet at an apex, or common centre point, may be developed using what method?
Radial line development
1st YEAR SIMPLE LAYOUT DEVELOPMENT
Simple Layout
_______ is a method of pattern development used to develop patterns for irregular shaped objects.
Triangulation
1st YEAR SIMPLE LAYOUT DEVELOPMENT
Simple Layout
_______ is a short cut method of layout.
Rollation development
1st YEAR SIMPLE LAYOUT DEVELOPMENT
Simple Layout
The _______ of a pattern is the distance around the duct.
stretchout
1st YEAR SIMPLE LAYOUT DEVELOPMENT
Simple Layout
The vertical lines that become the corners of the duct after it is folded in a hand brake are called what?
brake lines
1st YEAR SIMPLE LAYOUT DEVELOPMENT
Simple Layout
_____ _____ are used to join individual pieces of duct or fittings together.
Duct connections.
1st YEAR SIMPLE LAYOUT DEVELOPMENT
Simple Layout
The ____ _____ requires no allowances to be added to the completed pattern.
raw edge.
1st YEAR SIMPLE LAYOUT DEVELOPMENT
Simple Layout
The s-cleat and drive cleat connection, also called the slip and drive (S and D connection) is a common connection used for connecting ________________.
residential and small commercial ducts.
1st YEAR SIMPLE LAYOUT DEVELOPMENT
Simple Layout
The slip cleat, sometimes called the s-cleat is approximately what width?
1 inch
1st YEAR SIMPLE LAYOUT DEVELOPMENT
Simple Layout
The drive cleat is approximately what with?
1 1/8”
1st YEAR SIMPLE LAYOUT DEVELOPMENT
Simple Layout
The slip and drive connection requires a ______ allowance to be added to the duct connection.
1/2”
1st YEAR SIMPLE LAYOUT DEVELOPMENT
Simple Layout
The standing drive connection is also called the _____ connection.
CP connection.
1st YEAR SIMPLE LAYOUT DEVELOPMENT
Simple Layout
What is a another term for a hammer lock?
Tap-in
1st YEAR SIMPLE LAYOUT DEVELOPMENT
Simple Layout
What do you call a hook seam with a single offset?
groove seam
1st YEAR SIMPLE LAYOUT DEVELOPMENT
Simple Layout
What is the most common used machine formed lock in the sheet metal trade.
Pittsburgh Lock
1st YEAR SIMPLE LAYOUT DEVELOPMENT
Simple Layout
_____ _____ is required to remove excess material not required in either the duct fabrication allowance or the duct connection allowances.
Proper Notching
1st YEAR SIMPLE LAYOUT DEVELOPMENT
Simple Layout
What do you call the list of pieces of metal that will be cut at the shear.
Cutting list
1st YEAR SIMPLE LAYOUT DEVELOPMENT
Simple Layout
What is the allowance required at the edge out the duct or fitting?
1/2”
1st YEAR SIMPLE LAYOUT DEVELOPMENT
Simple Layout
The duct notch, radius fitting notch and the transitional fitting notch are all notches used when notching for what on a duct connection?
Slip and Drive connection.
1st YEAR SIMPLE LAYOUT DEVELOPMENT
Rectangular Elbows
Rectangular elbows are fittings used to create corners or change direction of a duct line. TRUE or FALSE
True
1st YEAR SIMPLE LAYOUT DEVELOPMENT
Rectangular Elbows
The reasons the cheeks of a rectangular elbow may have to be fabricated in sections or pieces ?
- Material utilization
- added strength
- limited sheet sizes
1st YEAR SIMPLE LAYOUT DEVELOPMENT
Rectangular Elbows
Elbows with a radius heel and radius throat are more efficient than those with a square heel and throat.
TRUE or FALSE
True
1st YEAR SIMPLE LAYOUT DEVELOPMENT
Rectangular Elbows
A residential application throat radius should be what compared to the cheek opening?
Minimum of one half
1st YEAR SIMPLE LAYOUT DEVELOPMENT
Rectangular Elbows
A net pattern is a pattern with what?
No allowances added
1st YEAR SIMPLE LAYOUT DEVELOPMENT
Rectangular Elbows
All lines used in the development of the net patterns should be what?
Construction lines
1st YEAR SIMPLE LAYOUT DEVELOPMENT
Rectangular Elbows
When developing a 90* rectangular elbow net pattern, the first step is what?
Begin by drawing a right angle.
1st YEAR SIMPLE LAYOUT DEVELOPMENT
Rectangular Elbows
When developing a 60* rectangular elbow net pattern, the first step is what?
Draw the base line.
1st YEAR SIMPLE LAYOUT DEVELOPMENT
Rectangular Elbows
When developing the 60* elbow, the short arc that cuts the first arc drawn is swung from what?
Where the arc intersects the baseline
1st YEAR SIMPLE LAYOUT DEVELOPMENT
Rectangular Elbows
When measuring and marking the throat radius and opening, this is done on the what?
Baseline
1st YEAR SIMPLE LAYOUT DEVELOPMENT
Rectangular Elbows
The heels and throats of a rectangular elbow are sometimes referred to as runners. TRUE or FALSE
True
BASIC 1st YEAR THEORY
Hand Tools
List the 3 uses of a circumference ruler.
- Find circumference
- Measure
- Scribe straight or curved lines
BASIC 1st YEAR THEORY
Hand Tools
Explain why the hook on the end of a flexible tape ruler should be movable.
The hook end should be movable to allow for accurate inside and outside measurements.
BASIC 1st YEAR THEORY
Hand Tools
The long part of a steel square is called ______ and the short part is called _______.
Body and tongue
BASIC 1st YEAR THEORY
Hand Tools
What tool would you use to scribe an arc or circle larger than 42”
- Trammel point
- Scriber
- Spring type dividers
- Protractor
- Trammel point
BASIC 1st YEAR THEORY
Hand Tools
A good tool for accurately transferring measurements is a :
- Tape measure
- Combination square
- Vernier caliper
- Set of dividers
- Set of dividers
BASIC 1st YEAR THEORY
Hand Tools
What way do green handled aviation snips cut?
From left to right
BASIC 1st YEAR THEORY
Hand Tools
What is the advantage of combination snips over straight snips?
Combination snips have a cutting blade that curves away from the cutting edge. The removal of the blade allows the metal to roll over the blade easier which enables you to cut smaller radius curves.
BASIC 1st YEAR THEORY
Hand Tools
A 32 tpi (teeth per inch) hacksaw blade is the best choice for cutting what type of material
thin stock
BASIC 1st YEAR THEORY
Hand Tools
Is it conceded dangerous to use a chisel that has its head mushroomed?
Yes
BASIC 1st YEAR THEORY
Hand Tools
What type of punch is used to transfer patterns onto sheet metal?
Prick punch
BASIC 1st YEAR THEORY
Hand Tools
What is the purpose of the wedge when replacing a hammer handle?
The wedge is used to tighten the end of the handle in the eye of the hammerhead.
BASIC 1st YEAR THEORY
Hand Tools
What is the size of a pair of pliers determined by what?
The overall length of the tool.
BASIC 1st YEAR THEORY
Hand Tools
What is the advantage that vise grips have over pliers?
when you need to maintain constant pressure
BASIC 1st YEAR THEORY
Hand Tools
Using clamps when working around power tools or equipment can substantially enhance _____ and ____.
Safety and accuracy.
BASIC 1st YEAR THEORY
Hand Tools
How is the size of a pair of C-clamps determined?
Clear opening of the jaws
BASIC 1st YEAR THEORY
Hand Tools
What is the first thing that you should consider when selecting a screwdriver for a particular job?
Make sure that the tip of the screwdriver fits the screw head shape and size.
BASIC 1st YEAR THEORY
Hand Tools
What is the purpose of the hole on the side of a rivet set?
To allow pieces of metal to fall out.
BASIC 1st YEAR THEORY
Hand Tools
An adjustable wrench is recommended to be used when?
The proper fitting wrench is not available.
BASIC 1st YEAR THEORY
Hand Tools
What are files classified by?
The length, shape and cut
BASIC 1st YEAR THEORY
Bench Machines
What are the two categories of turning machines?
- Throatless and deep throat
BASIC 1st YEAR THEORY
Bench Machines
What do you call a rolling machine that has a top roller that is half round in shape and a bottom roller that is cylindrical and tapering at the end?
WIre roller. It is used to close and finish the turned edge of a job that has a wired edge.
BASIC 1st YEAR THEORY
Bench Machines
What do you call a rolling machine that has a top roller that is v shaped and a bottom roller that cylindrical with a v shape groove in it?
Elbow edging roller. It is used to form the seam and join together the sections of gores of a round elbow fitting.
