101 Review Flashcards
When a thimble is used and the clips are properly applied, the mechanically clipped eye is capable of
developing approximately ______ of the strength of the wire rope
80%
Name two types of scaffolding systems?
Elevated work platforms
framed scaffold systems
Name two types of forklifts and the one main difference between the two?
Outdoor - pneumatic tires
Indoor - solid tires
Briefly describe the five steps to be followed when installing a full body harness
Step 1 - Locate the D ring. Lift the harness by it, ensure no straps are twisted.
Step 2 - Grasp the shoulder strap and slip harness onto one arm. Slip the second arm into the harness, position the shoulder straps on top of shoulders. Chest strap with buckle should be on the
front side.
Step 3 - Reach between your legs and connect the strap to the buckle on the front of your thigh.
Step 4 - Attach chest strap by passing male buckle through the female buckle.
Step 5 - Adjust the shoulder straps for a snug fit]
As an operator of a lifting device, OHS states that the employer must have an operator who can
demonstrate their competency. List the five competencies:
- Read and understand lift plans.
- Maintain equipment and operator log book.
- Select appropriate equipment to be used.
- Know, understand, and use load charts.
- Complete lift calculations, in which, not to exceed 75% of cranes rated capacity.
When working on an extension ladder, the minimum overlap should be _________ unless the
manufacturer specifies a certain overlap.
1m/3’
An employer must ensure all factors of a lift/load are considered when filling out a hazard assessment
for any given job. What five factors must be considered?
- Weight of load
- Size of load
- Shape of load
- Number of times load will be moved
- Technique used to move the given load
Define: Rigging?
Rigging is the hardware of components used to attach your load to a hoisting or lifting device.
What information is required on a chain sling manufacturer ID tag?
Type of alloy it is made out of.
* Size of steel used for the line.
* Length of the sling.
* Slings work load at specific sling angles.
* A serial number
Although there is no procedure for manual handling or lifting objects, injury can still occur. What is the
name of the injury that can happen to the bone, joints, ligaments, or muscles?
Musculoskeletal injuries (MSI)
Define working load limit (WLL) in reference to a chain?
It is the maximum load that can be safely applied to a straight length of chain.
While operating overhead cranes and fork lifts, a log book must be kept up to date. What operating
body enforces that this must be obtained?
OHS
When using a bridle sling arrangement, to accomplish a lift and the angle between a sling leg and the
horizontal decrease, what major fact increases on the bearing load?
The tension increases on the load
Whenever a load is underway, you want to protect your slings from damage. How is this prevented?
Using load softeners
When lifting multiple pieces, or loose loads of pipe, which choker hitch should be used, and why?
Double wrap choker hitch.
one wrap contacts against the entire outside surface of the load. This enables the hitch to draw the load tightly together to prevent it from slipping.
Does the load radius of a crane increase or decrease when the load is lifted off the ground?
Increase
When 2 or more cranes or hoists lift one load, who should be given responsibility for the
operation?
1 qualified person usually the signal person
What hand motion is required for the hand signal designating boom down?
arm extended, thumbs down
What is the effect on rope strength when a knot is tied in a rope?
decreases to 50%
Why is a bowline knot advantageous for hoisting?
It is easy to tie and untie when a load has been applied and does not slip easily.
The clove hitch is useful for fastening a rope to a post or pipe. How should it be secured?
Secure it with a half-hitch to the standing part of the rope.
What are the two most common types of synthetic fibre ropes used in the industry?
polyester
polyethylene
nylon
polypropylene
nylon & polypropylene
Which type of rope provides the greatest strength?
a) polyester
b) polyethylene
c) synthetic rope
d) polypropylene
c) synthetic rope
What safety factor is used to hoist personnel with fibre rope?
10:1
What safety factor is used for general rigging and hoisting operations?
5:1
if you rig a load for lifting with the hook located to the side of the centre of gravity. What would be the outcome?
The load would shift/swing/flip over and likely become unstable
When using a U-bolt and saddle, what section of the clip must be on the dead end of the rope?
The u-bolt
(never saddle a dead horse)
List in priority the 3 types of hazard controls.
Engineering
Administrative
PPE
True or false
According to OHS code an employer must provide an Emergency Response Plan (ERP) that must cover all their job sites?
False-
Emergency response plans must be specific to each job site - same as hazard assessments
Your employer must be familiar with the OHS Act, Regulations, and Codes as it applies to your
worksite.
To be an “employer” how many employees must you have?
Just one, and it can be owner/employee - owns your own business
As an employee, you also have responsibilities. Name 3 of these responsibilities you need to carry out?
- Employees must wear all proper PPE.
- Employees must report all injuries.
- Employees do not have to perform work that they feel is unsafe
Before any work commences/begins on a work site, what must your employer do?
Conduct a site specific hazard assessment
Housekeeping does not just mean keeping a clean area for one to work around. What other factors
contribute to housekeeping on a work site?
Removing objects that could cause a slip or trip.
Inspection of tools for maintenance or repair.
A positive attitude of workers and co-workers
OHS Act has a broad view of the work place. Which three groups does OHS monitor for the safety in
the workplace?
- The Employer
- The Employees
- The equipment or material Suppliers
As an employer, what does the code state about lighting in the workplace?
The employer must ensure that lighting is sufficient for work to be done safely - including emergency lighting during power failures
The OHS Code has core requirements that are applicable to all industries. List the three requirements
For employers and workers to have in order for the worksite better and safer.
use engineering controls
use administrative controls
use personal protective equipment (PPE)
It is recommended that the worker fills out a field level risk assessment daily. What four steps does it
cover to help workers daily activities?
- look around and identify hazards
- assess risks
- control risks
- resume work
Define WHMIS and when was it introduced to Canada?
Workplace Hazardous Materials Information System. It was introduced to Canada in 1988
When refueling containers to be transported with a certain type of fuel, what color of container must
you use for fueling diesel and gasoline?
Gas - red
Diesel - yellow
How are Class A, B, and C fire extinguishers rated?
By a # put infront of their respective letter; indicating the size or extent of the fire they can extinguish.
A- wood & paper
B- flammable liquids
C - electrical
After the use of oil or acids, who is responsible for its disposal?
The responsibility falls upon the generator of the waste to identify and process the waste according to regulations.
Name the six classes and various divisions within the WHMIS classification.
Class A: Compressed Gas
Class B: Flammable and combustable material
Class C: Oxidizing Material
Class D (3 divisions) : Poisonous and infectious materials
Class E: Corrosive Material
Class F: Dangerously Reactive
What harm can visible light, ultraviolet, and infrared rays cause if exposed from arc welding?
Visible light can cause eye strain or in some extreme cases temporary blindness or permanent blindness;
Ultraviolet light causes burns to exposed skin and blistering of the eye ball known as arc flash;
Infrared rays can penetrate deeply and cause temperatures to increase and burns to exposed skin; these rays may also penetrate the interior of the eye and can cause retina damage. Repeated exposure of arc rays over long periods can cause
What are first, second, and third degree burns?
First degree burns are only the outer layer of skin that is damaged;
Second and third degree burns are deep within all layers of skin that becomes destroyed, as well as underlying fat and muscle are damaged to varying depths.
In a welding shop, everything is hot until proven otherwise; therefore, what should a welder mark on metal that was just welded or cut?
Write on metal with soapstone “hot”
What is hypothermia and how should it be treated?
Hypothermia is caused by prolonged exposure to cold resulting in uncontrollable shivering, dizziness, and light headedness.
* To treat hypothermia, the person’s body temperature needs to be raised slowly; therefore, give the person warm liquids without caffeine and make sure they get medical attention as soon as possible.
What is the most common workplace hazard?
Noise
What is the minimum exposure limit for noise in an 8 hour period?
85 decibles
What type of protective clothing should a welder wear during work?
Clothing not of synthetic materials preferably leather or 100% cotton
untanned Gauntlet gloves
Lid with appropriate shade
safety glasses and face shield
Air Purifying respirators do not remove all the contaminants and must never be used in:
Atmosphere that is immediately dangerous to life and health (IDLH).
What type of airline respirators should workers use in an atmosphere that is dangerous?
Supplied air respirator ( Continuous flow and pressure demand)
Define occupational exposure limits:
The max level of exposure for a specific length of time. typically 8 hours without suffering adverse health effects.
Some gases are harmful and can cause cancer which is called carcinogens; name 3 metal gases are
considered to be cancer causing?
Beryllium
Cadmium
Nickel fumes
List the subject areas within the Occupational Health and Safety Act.
Confined space, testing the Atmosphere, A-frames and gin poles, vehicle hoists, portable ladders, securing and positioning, fall protection, hot work, compressed and liquefied gas, welding-general, gas welding or allied process, welding services from vehicles, storage compartments, horizontal cylinder storage, handling cylinders, housekeeping, Isolation, Isolating piping, eye protection, foot protection, limb and body protection, refuelling, guardrails, scaffolds, scaffold planks, free standing or rolling scaffolds, and grinders.
Airline respirators or SABA come in what 2 different types?
Continuous flow
Pressure demand
What is the standard amount of air to be moved/ventilated within a building?
Min 4 complete cycles per hour
(2000 cubic feet per hour)
Is it necessary to have multiple lockout scissors in place when working on a piece of equipment? Why?
Yes if there are multiple people working on the equipment.
Ensures all workers are accounted for and have cleared their portion of the work for re-energization.
Which section of the CSA Standard Code does welding helmets fall under?
CSA Z94.1
What is the purpose of placing a gasket between the outer clear glass or plastic and the filter plate on your
welding helmet?
Protects the lens from sudden heat changes that could cause it to break
List 3 extremely toxic gases created during welding?
Ozone
CO
Nitrogen Dioxide
What 3 sources are fumes and gases created from?
The melting of base metals and fillers
Base metal coverings such as coatings, residues and plating or Fluxes
What is the acceptable level of oxygen required to work in a confined space?
19.5% - 23%
If a portable ladder is used to reach a surface12ft above the ground, how far must the base of the ladder be
from the wall?
3’
Using the 4:1 ratio
It must also reach 3’ above the landing
What is C2H2
Acetylene
What is C2H2’s critical pressure
a) 20psi
b) 28psi
c) 30psi
d) 38psi
b) 28 psi
with a save working pressure of 15psi
C2H2 should not be drawn off more than _____ of its capacity per hour or emptied in less than ____ hours.
a) 1/5 , 5
b) 1/6, 6
c) 1/7, 7
d) 1/8, 8
c) 1/7, 7
O2 hoses are _______ and have ______ hand threads.
a) red, right hand
b) green, right hand
c) red, left hand
d) green, left hand
b) green, right hand
C2H2 hoses are ______ and have ______ threads.
a) red, right hand
b) green, right hand
c) red, left hand
d) green, left hand
c) red, left hand
What regulator malfunction occurs when the valve on the high pressure side does not seat properly & gas leaks past the seat; raising the pressure above normal.
a) backfire
b) burn back
c) flash back
d) creep
d) creep
This can blow off the relief valve or rupture the bourdon tube in low pressure gauge.
What metal should never be used on oxy-accetylene fittings?
a) titanium
b) copper
c) red bras
d) both b& c
d) both b& c
Red Brass & Copper should never be used on an oxy-acetylene set up
There are two different typed of welding tips.
Match the names with the descriptions
Swedge & straight,
The _____ tip produces a thin pointed type flame.
The _____ bore type produces a bulbous type flame.
The swedge tip produces a thin pointed type flame.
The straight bore type produces a bulbous type flame
Name the 3 types of flames
Neutral
Carbonizing (reducing, carburizing)
Oxidizing
What is a backfire?
A backfire is when the flame backs up into the tip and re-establishes itself with a loud bang or popping sound.
Name 3 causes of backfire
- too little of gas speed
- obstruction of gas flow
- loose or faulty seat connection
- dirty tip
- a hot tip
What is this a description of?
The speed at which a flame will travel in a pre-mixed gas
flame of propagation
How fast will C2H2 burn with O2?
a) 10-17 feet per second
b) 17 - 25 feet per second
c) 15 - 25 feet per second
d) 25 - 29 feet per second
b) 17 - 25 feet per second
When referring to the molten metal left on the bottom of a plasma cut what is the name of the left over molten metal?
Dross
When referring to the molten metal left on the bottom of an oxyacetylene cut what is the name of the left over molten metal?
Slag
What is another name for a standard torch?
heavy duty torch
What are the 3 torch type systems?
heavy duty/standard
machine
combination
What are the 3 machine control systems
manual and machine tracer
magnetic tracer
electric tracer - CNC
What are the 3 cutting methods when using a cutting torch?
across, push, pull
What are the 3 methods of prepping material for a cut?
Chiseled (nick)
Drill
Bead of arc weld
what are the 2 methods of starting a cut with an oxy-acetylene torch?
Still torch & traveling torch methods
What general metals can a plasma arc cut?
All metals that conduct electricity
Explain plasma
A gas which has been heated to an extremely high temperature by an electric arc.
This causes the gas to ionize, making it electrically conductive.
Plasma is considered to be the fourth state of matter; the others are gas, liquid and solid.
On a PAC torch system does the plasma and shielding gasses;
a) travel through the same pathway
b) travel through separate pathways?
b) the plasma and shielding gasses travel through separate passageways ( dual flow torch)
PAC is an arc cutting process that uses a ______ ___ to remove molten metal with high velocity jet of ionized gas flow through a constricting nozzle
constricted arc
AC is ____ current of thousand of cycles per second.
a) high wavelength
b) high frequency
c) low wavelength
d) low frequency
b) high frequency
PAC operates on _____
a) DC, DCRP
b) DC, DCSP
c) CC, DCRP
d) CC, DCRP
b) DC, DCSP
PAC power source uses _____ with a range of _______ psi.
a) open circuit, 120 - 400.
b) closed circuit, 120 - 400
c) open circuit, 100 - 400
d) closed circuit 100 - 400
a) open circuit, 120 - 400.
If using a nozzle for plasma arc gouging what is the nozzle doing to the arc?
reduces arc constriction, resulting in lower arc stream velocity.
_______ are common in many fabrication shops because of the availability and economy of compressed air. These torches provide quality cuts of carbon steels.
a) air torches
b) gas torches
c) compressed air torches
d) compressed gas torches
c) compressed air torches
PAC produces a ______ heat affected zone (HAZ) along the kerf
a) very wide
b) very narrow
c) slightly wide
d) slightly narrow
b) very narrow
What is the max stickout for CAC-A?
a) 5”
b) 6”
c) 7”
d) 8”
c) 7”
What is the min stickout for CAC-A?
a) 2”
b) 4”
c) 6”
d) 8”
a) 2” so you dont melt the plastic housing on the torch
List the 3 expansion types
solid, transitional (grains change)
fluid (molten)
What upset is the following situation describing?
When a broken bolt is heated up so it contracts and expands when cooled
Dimensional upset
With the 3 types of distortion which one would you generally use a wedge to help combat it.
a) angular
b) transverse
c) longitudinal
d) cross
b) transverse
_______ has adopted the AWS symbols and added some modifications and symbols of their own
CSA
What are the 4 weld types that can be depicted by a weld symbol.
a) plug/slot, surfacing, groove, fillet
b) slot, plug, groove, fillet
c) plug, slot, groove, fillet
d) corner, plug/slot, groove, fillet
a) plug/slot, surfacing, groove, fillet
A welding symbol as a _______ line, an _____ line and at least 1 weld symbol.
a) reference, direction
b) reference, arrow
c) procedure, direction
d) indication, arrow
b) reference, arrow
A broken arrow is used with J and ___ to indicate which side is prepped.
a) fillet
b) bevel
c) groove
d) surface
b) bevel
A _______ welding symbol doesn’t indicate the welding of a joint and has arrow side significance only.
a) fillet
b) bevel
c) groove
d) surface
d) surface
The vertical leg of a fillet, bevel, J is always on the left leg ________.
a) horizontal
b) vertical
c) perpendicular
d) parallel
c) perpendicular
Dotted U groove weld symbol is a ______ standard only. Indicates preparation of the groove by the
a) CSA
b) AWS
C) ANSI
d) WHMIS
a) CSA
Dotted U groove weld symbos is a __ standard only.
Indicates preparation of the groove by the CAC-A process
a) CSA & AWS
b) AWS
c) CSA
d) ANSI
c) CSA
Dotted U groove symbol is a CSA standard only
The _____ is used for specification data, cutting & welding processes, other info that cant be placed in symbol form & also for info pertaining to the weld that is located elsewhere on the drawing (saves repeating of info in the welding symbol)
a) top
b) tail
c) flip
d) fly
b) tail
The purpose of ______ - metals low in ductility or prone to cracking should be preheated
a) post heat
b) preheat
c) annealing
d) induction
b) preheat
CC - needs volt sensing
The purpose of ______ prevent hydrogen induced cracking, martensite forming.
a) post heat
b) preheat
c) annealing
d) induction
a) post heat
The following describes Upper or Lower temps
- normalizing (still air), annealing(long time), hardening (flame and induction)
Upper
At heights guard rails are to be between
a) 30” - 40”
b) 30” 45”
c) 36” - 40”
d) 36” - 42”
At heights guard rails are to be between
a) 30” - 40”
b) 30” 45”
c) 36” - 40”
d) 36” - 42”
What is the ratio when using a ladder for how far out from the wall the ladder must be?
1:4 (4 up & 1 out)
A tool rest on a bench grinder should never be more than ______ away from the stone.
a) 1/6”
b) 1/8”
c) 1/4”
d) 5/16”
b) 1/8”
_______ can cause burns to the skin and retinas
a) ultraviolet
b) infrared
c) invisible x-rays
d) gamma rays
b) infrared
________ can cause arc flash and tanning/burning of the skin, increasing your risk for cancer
a) ultraviolet
b) infrared
c) invisible x-rays
d) gamma rays
a) ultraviolet
Plasma cutting temps range from
a) 10,000 - 15,000 °F
b) 15,000 - 18,000°F
c) 18,000 - 25,000°F
d) 20,000 - 26,000°F
c) 18,000 - 25,000°F
What 3 metals can cause cancer
Cadmium, Beryllium, Nickle
Zinc, Copper oxides, & Nickel can cause ___
a) hypersensitivity pneumonitis
b) organic dust toxic syndrome
c) metal fume fever
d) phosgene gas
c) metal fume fever
Chlorinated degreasers when heated produce ________
a) hypersensitivity pneumonitis
b) organic dust toxic syndrome
c) metal fume fever
d) phosgene gas
d) phosgene gas
What are the 3 types of ventilation
natural - breeze
general mechanical - air pumped in and vented out (4/hr)
local exhaust - capture at the source and vented at, at least 100cu ft/min
What is the most common hazard in a shop?
Noise
Best clothing for welding in order
1.
2.
3.
- Leather
- Wool
- Cotton
A class “A” fire is from what type of materials
a) combustable metals
b) electrical
c) kitchen materials
d) paper & wood
d) paper & wood
A class “B” fire is from what type of materials
a) combustable metals
b) electrical
c) kitchen materials
d) flammable liquids
d) flammable liquids
A class “C” fire is from what type of materials
a) combustable metals
b) electrical
c) kitchen materials
d) flammable liquids
b) electrical
A class “D” fire is from what type of materials
a) combustable metals
b) electrical
c) kitchen materials
d) flammable liquids
a) combustable metals
A class “K” fire is from what type of materials
a) combustable metals
b) electrical
c) kitchen materials
d) flammable liquids
c) kitchen materials
__________ is the electromotive force that pushes the current through the circuit
a) amperage
b) voltage
c) current
d) slope
b) voltage
______ controls the starting of the arc and maintains the arc and puddle fluidity.
a) amperage
b) voltage
c) current
d) slope
b) voltage
______ is responsible for; metal deposition rate, & penetration
a) amperage
b) voltage
c) current
d) slope
a) amperage
A DC ______ type welder has AC input and DC output.
a) inverter
b) transformer
c) rectifier
d) current
c) rectifier
An AC ______ changes AC to DC and then back to AC at a higher frequency then transforms it to welding voltage/amperage then changes it back to DC one last time producing the smoothest arc.
a) inverter
b) transformer
c) rectifier
d) current
An AC ______ changes AC to DC and then back to AC at a higher frequency then transforms it to welding voltage/amperage then changes it back to DC one last time producing the smoothest arc.
a) inverter
b) transformer
c) rectifier
d) current
A _____ in a welder changes AC to DC
a) inverter
b) transformer
c) rectifier
d) current
c) rectifier
Straight polarity the electrode is connected to the _____ terminal of the welder
positive or negative
DCSP = negative terminal
Reverse polarity the electrode is connected to the _____ terminal of the welder
positive or negative
DCRP = positive terminal
When lifting a load, the hook should be placed over the center of gravity: (31)
so, the load will not shift
so, the load will lift off center
so, you can lift the load higher
so, the hook will not come undone
so, the load will not shift
To avoid a shock load: (15)
keep the boom well away from the power lines
start and stop the lift slowly
accelerate the load quickly
stop the load quickly
start and stop the lift slowly
Drag lines can be used to indicate: (16)
torch angle
travel speed
the type of torch used to cut
all of the above
travel speed
When large uneven loads are hoisted in close proximity with other objects it is a recommended practice to: (62)
a) use two or more tag lines
b) use a single basket hitch to rig the load
c) use open hook turnbuckles to direct the load
d) hoist the load using two slings with an angle of 30 degrees
a) use two or more tag lines
What is the definition of a transferred arc? (2)
when the electrode contacts the workpiece
an arc established between the electrode and the tip
current flow between the electrode and the workpiece
induced current from the primary to the secondary windings
current flow between the electrode and the workpiece
According to incident and accident reports you and or the employer must: (19)
retain reports for 3 years
report the incident to the employer
investigate and prevent future incidents
all of the above
all of the above
What is the device called that prevents wear on a wire rope during hoisting? (13)
an eye
a thimble
socket
mechanical swage
a thimble
The welding operators pant legs should: (16)
be tucked into the boots
be flared
be tight fitting
have no cuffs
have no cuffs
The first step to putting out a fire in ruptured hoses of an oxy-acetylene outfit is:(3)
close the oxygen cylinder valve
close the acetylene cylinder valve
use a fire extinguisher on the hoses
kink the hoses to restrict gas flow to the torch
close the oxygen cylinder valve
Diamond chisels are used for: (34)
squaring the corners of keyways
cutting small convex surfaces
cutting convex diamond shapes
all of the above
squaring the corners of keyways
When using a plate clamp to lift stainless steel: (24)
the carbon steel jaws will not grip the stainless plate
the jaws can damage the stainless steel
the jaw teeth may be damaged
all of the above
the jaws can damage the stainless steel
A welder’s cap with a peak will protect: (10)
head & hair
ears from sparks & spatter
the neck from welding radiation
all the above
all the above
A chisel is hardened and tempered: (33)
1/2 inch from the cutting edge
3/4 inch from the cutting edge
1 inch from the cutting edge
the entire length of the chisel
3/4 inch from the cutting edge
Grit refers to the stone’s: (5)
bond
grade
structure
abrasive size
abrasive size
Hacksaw blades are mounted in the frame to facilitate cutting on the: (27)
pull stroke
push stroke
push and pull stroke
slide stroke
push stroke
What should you do if you notice a co-worker engaged in an unsafe practice? (2)
don’t interfere
report them to the safety committee
approach the person and make your concerns known
submit a written report to your supervisor
approach the person and make your concerns known
Which of the following is possible when subjected to corrosive products? (7)
eye irritation or damage
metal corrosion
respiratory damage from inhalation
all of the above
all of the above
Positive identification of cylinders is best determined by the: (19)
color of the cylinder
size and shape of the cylinder
distinctive odor of the gas
WHIMIS supplier label
WHIMIS supplier label
The speed of a vertical band saw is measured: (40)
by feet of blade per minute through workpiece
by inches of blade through workpiece
by revolutions per minute of drive wheel
by revolutions per minute of saw blade
by feet of blade per minute through workpiece
If the apprentice notices something that is unsafe in the workplace, they should report the activity to: (24)
OHS
the employer
other co-workers
the apprenticeship branch
the employer
The oxy-fuel cutting process is a form of: (2)
erosion
corrosion
metal decay
rapid oxidation
rapid oxidation
The two types of dividers are: (17)
sprint, graduated
firm joint, graduated
firm joint, spring
carbide, firm joint
firm joint, spring
What purpose is the figure eight knot suited for? (9)
it is easy to untie
it does not slip
it is used when tying persons into safety harness
all of the above
all of the above
A ventilation system should provide a minimum of: (31)
two changes of air per hour
three changes of air per hour
four changes of air per hour
five changes of air per hour
four changes of air per hour
Which of the following signals describes load up? (58)
arm straight out with thumb pointing upward
arm vertically straight, with forefinger pointing upward
forearm vertical, forefinger pointing up, small circles
arm bent at elbow, fingers open pointing up, rotate the wrist
forearm vertical, forefinger pointing up, small circles
Protection while grinding requires: (11)
safety glasses and face shields
welding helmet with a light lens
safety shoes with high tops
welding or cutting goggles
safety glasses and face shields
A radiograph cutting process allows the operator to use a: (38)
track to produce straight line cuts
circle cutting attachment for hole cutting
template or straight edge for assisted cutting
all of the above
track to produce straight line cuts
A grinder stone rated at 1850 rpm may be safely operated at: (8)
2450 rpm
2200 rpm
2000 rpm
1800 rpm
1800 rpm
Fuel gas hose is usually colored: (26)
red
blue
black
green
red
When using CAC-A, what would be the cause of intermittent gouging action? (27)
travel speed to fast
travel speed to slow
inadequate air pressure
air not on prior to striking the arc
travel speed to slow
The minimum personal protective equipment one should wear in a welding shop is: (10-16)
safety glasses
CSA rated steel toe footwear
denim pants and long sleeve shirt
all the above
all the above
According to OHS Act who is responsible for training employee’s while on the worksite?(2)
employer
material suppliers
college institutions
industrial corporation
employer
The existence of carbonization in grooves made by air carbon arc gouging must be: (23)
removed by grinding
cleaned with a fluxing agent
wire brushed to remove slag
preheated to a minimum of 500 degrees F
removed by grinding
Which of the following synthetic fibers produces the strongest rope? (11)
rayon
nylon
polyester
polypropylene
nylon
A steamed vessel is safest to weld on when it: (48)
has cooled and is well ventilated
has been out of service for over 30 days
is hot and still full of live steam
has been blown out with compressed air
is hot and still full of live steam
Oxy-acetylene cylinders must be kept clear of arc welding equipment because: (18)
welding current can cause a static charge igniting the acetylene gas
an accidental arc strike on a cylinder could cause a fire or explosion
carbon or smoke from acetylene can reduce the conductivity in the copper windings
all of the above
an accidental arc strike on a cylinder could cause a fire or explosion
Which of the following would be categorized as a physical hazard? (14-17)
viruses
welding fumes
hazardous chemicals
hearing loss
hearing loss
According to OHS regulations who is responsible for safe work, and safety conscious measures in order to protect co-workers? (8)
the employee
the employer
your foreman
the manufacturer
the employee
Name a type of airline respirator that provides positive pressure in the face piece?(17)
full face visor
pressure demand
dust mask
all of the above
pressure demand
When grinding wheel speeds are limited to 6500 rpm the type of bonding would be: (5)
rubber
vitrified
resinoid
ceramic
vitrified
The main reason goggles are worn when welding or cutting is to: (12)
prevent eye strain
provide a clear view of the cut line
allow accurate adjustments of the flame
protect the eyes from harmful rays and sparks
protect the eyes from harmful rays and sparks
Which of the following should be considered when choosing foot protection? (37)
electrical shock
puncture resistance
chemical resistance
all of the above
all of the above
What is the function of a pilot arc? (2)
it initiates the amperage to cut the metal
it heats the plasma gas to cut the metal
it establishes a pathway to initiate the cutting arc
it is the voltage that initiate’s current flow in the machine
it establishes a pathway to initiate the cutting arc
An electrode holder used for CAC-A must have: (19)
an orifice to allow air flow
a maximum amperage rating of 300 amps
an electrode holder with a twist head to accept electrodes
all of the above
an orifice to allow air flow
A portable grinder with the bit or wheel orientation running directly in line with the body of the grinder is referred to as a: (9)
straight grinder
angle grinder
pedestal grinder
end grinder
grinder
The length of dividers is determined by the: (16)
thickness of the leg
from the pivot point to the end of the leg
distance between the legs when fully opened
measurement from the top of the divider to the bottom
from the pivot point to the end of the leg
Which of the following gases may cause death? (25)
ozone
carbon monoxide
nitrogen dioxide
all the above
all the above
The plasma arc cutting process utilizes amperage’s as high as:(7)
35 amps
150 amps
400 amps
750 amps
750 amps
Which of the following would be classified as a physical hazard? (14)
viruses causing disease
heat stress or hypothermia
absorbed or ingested chemicals
back injury or strained muscles
heat stress or hypothermia
Individuals preparing to lift and carry objects, should follow which safe lifting procedure? (15)
bend over or stoop to pick up a load
work out at the gym so you can lift properly
determine the weight of the load before lifting
keep your feet close together and bend over to perform the lift
determine the weight of the load before lifting
Welding torch tips can be bent to accommodate different welding angles? (30)
True
False
False
What shade of lens is required for CAC-A gouging in the 200-400 amperage range? (17)
9
10
12
14
12
Screens should be placed to protect workers while performing air carbon arc gouging from hazards such as: (16)
toxic fumes
flying slag
harmful rays
all of the above
all of the above
Three common methods to control the torch when performing a cut are: (26)
cope, block, bevel cutting
push, pull, across cutting
hole, shape, straight line cutting
radius, perpendicular, angle cutting
push, pull, across cutting
The PAC system uses a pilot arc, which also requires: (2)
argon gas
low voltage
high amperage
high frequency current
high frequency current
Fumes from which of the following coatings may cause death? (24)
paint
rust inhibitors
fluoride
all the above
paint
How are the air jets positioned when air carbon arc gouging in the flat position? (19)
toward the operator
the top side of the electrode
the underside of the electrode
parallel with the electrode holder
the underside of the electrode
When using two slings in the vertical position to hoist a 2000 lb. object, how much load is applied to each sling? (33)
500 lbs.
1000 lbs.
2000 lbs.
4000 lbs.
1000 lbs
Locking pliers or vise grips have: (21)
jaws which are flat
jaws which are semi round
soft ductile jaws to allow for grip
special jaws for various applications
special jaws for various applications
A cross grinding technique would have the operator: (11)
rotate 360 degrees around the grinding surface
change direction by 90 degrees with each layer
change location of grinding, from one project to another
grind with the flat surface of the wheel, then grind with the cutting edge
change direction by 90 degrees with each layer
Which potential source of poisonous chemical could cause fatal effects:(22)
SMAW fluxes
anti-spatter sprays
chlorinated degreasers
low concentrations of carbon dioxide
chlorinated degreasers
How many signalmen are required when performing a routine lift? (56)
one signalman
two signalmen
as many as necessary
one signalman
Horizontal band saws can be adjusted to make miter cuts: (42)
up to 15 degrees
up to 25 degrees
up to 30 degrees
up to 45 degrees
up to 45 degrees
Which of the following are layout tools? (5)
tapes, wrap-around, dividers
soapstone, wrap around, dividers
tapes, contour markers, trammels
squares, wrap-around, contour markers
squares, wrap-around, contour markers
Which of the following metals can be cut with oxy-acetylene? (20-21)
cast iron
mild steel
stainless steel
all of the above
mild steel
What type of a fire extinguishing agent is used to suppress a Class K fire? (33)
water
foam
dry chemical
wet chemical
wet chemical
Diagonal pliers are also known as: (36)
channel grips
side cutters
locking pliers
side cutting pliers
side cutters
A drift punch is used: (41)
to drive pins from their bore
for aligning holes
for aligning studs
for removing rivet heads
for aligning holes
Conventional oxyfuel equipment is not suitable for cutting aluminum and copper because: (21)
they are ferrous based materials
these materials are non-ferrous
they do not have a high rate of thermal conductivity
oxy-acetylene does not have enough BTU content
these materials are non-ferrous
Contour markers are used to develop: (14)
drawings on blueprints
bevel cuts on pipe
cut lines for any angle
layout lines on flat plate steel
cut lines for any angle
A straight shank twist drill is used on drills up to: (21)
1/4 inch
1/2 inch
3/4 inch
1 inch
1/2 inch
Which design of cutting tip is configured to cut protrusions off parent material without damaging the surface? (10)
a straight tip
four-hole tip
a number 3 tip
heavy duty rivet/bolt tip
heavy duty rivet/bolt tip
he oxygen needle valve on the torch handle would be used to adjust the: (4)
cutting stream pressure
preheat cones to neutral
amount of fuel gas being used
the length of the preheat flames
preheat cones to neutral
A hacksaw blade should always have: (3)
1 tooth on material at all times
2 teeth on material at all times
3 teeth on material at all times
4 teeth on material at all times
2 teeth on material at all times
Flexible abrasive wheels are usually installed on a: (9)
straight grinder
bench grinder
angle grinder
pedestal grinder
angle grinder
Which fuel gas can produce the highest flame temperature for gas welding? (5)
propylene
propane
acetylene
hydrogen
acetylene
Trammels are typically used: (17)
to transfer measurements beyond the range of dividers
to transfer measurements less than the range of dividers
in place of center punches
in place of chalk lines
to transfer measurements beyond the range of dividers
Hydrogen sulfide is: (26)
denser than air
less dense than air
same density as argon
same density as helium
denser than air
Guards on bench grinders should cover: (4)
1/4 of the wheel
1/3 of the wheel
1/2 of the wheel
2/3 of the wheel
2/3 of the wheel
The tool used for scribing circles on steel plate is a: (16)
protractor
divider
wrap around
contour marker
divider
How can you identify an oxygen hose? (25)
measure hose diameter
check the connector fittings
identify the material composition
check the flow direction of the check valves
check the connector fittings
WHMIS is a communication system that defines: (9)
explosives
pesticides
radioactive materials
storage and handling of controlled & hazardous substances
storage and handling of controlled & hazardous substances
What defines a hot drawn product in regards to oxygen cylinders? (8)
welded while hot
poured into shape while hot
made from one piece of steel
tested hydrostatically while hot
made from one piece of steel
A stainless steel wire brush should be restricted for use on stainless steel or non-ferrous materials. (47)
True False
True
Turning rolls are used to: (45)
shape plate steel for tank construction
roll channel iron for stiffeners on tank rings
rotate the can of a large diameter pipe for vessel construction
act as pipe stands for supporting smaller diameter pipe for roll welding
rotate the can of a large diameter pipe for vessel construction
The adjustment of gas pressures for Oxy-Acetylene cutting depends on the: (24)
tip size
metal thickness
oxy-acetylene pressures
all of the above
all of the above
A reducing flame is rich in: (40)
oxygen
acetone
acetylene
carbon dioxide
acetylene
Which of the following organizations have a system to identify compressed gas cylinders? (19)
CWB
AWS
CSA
WHMIS
WHMIS
When gouging on aluminum, what is the maximum distance of electrode extension from the electrode holder to the workpiece? (15)
180 mm (2 inches)
200 mm (4 inches)
250 mm (6 inches)
the full length of the electrode
200 mm (4 inches)
A vessel that is to be repaired by welding, should be tested to detect the internal air quality for: (44)
flammables
fumes
low oxygen level
all the above
all the above
According to OHS Bill C-45 states that representatives must: (5)
show up for work every day
only perform an eight hour work shift
protect all workers from injury or death
report a near miss infraction on the worksite
protect all workers from injury or death
How many classes of fire are there? (31)
three
five
four
six
five
The values used for the Occupational Exposure Limit are based on: (25)
a normal eight hour work day
a fifteen minute short term exposure
a ceiling that may never be exceeded
all the above
all the above
The point angle of a prick punch is ground: (18)
15 to 30 degrees
30 to 45 degrees
30 to 60 degrees
45 to 60 degrees
30 to 60 degrees
Which is not, a method of making a cut easier to start on a 4-inch round shaft? (15)
make a small weld
drill a shallow hole
a nick with a cold chisel
use a circle cutting attachment
use a circle cutting attachment
Who is responsible to direct the crane operator when making a lift? (56)
the site foreman
the worker himself
the job superintendent
the signal man
the signal man
What type of electrode is recommended for the air carbon arc gouging process: (21)
nickel
cellulose
graphite
Tungsten
graphite
Why is it important to use handles on files when removing metal? (32)
for personal safety
it protects the file point
it promotes faster metal removal
all of the above
for personal safety
What precaution should be implemented when working with flammables? (6)
do not drop cylinders
ensure proper ventilation
wear respiratory protection
eliminate heat sources
eliminate heat sources
Cutting or welding on concrete floors: (15)
can weaken the building structure
can create hazardous fumes discharged from the hot concrete
can cause the concrete to explode
is permissible if you lightly wet the concrete
can cause the concrete to explode
