Workshop Practices Flashcards by Victoria Nelson

What does the Health and Safety at Work Act 1974 deal with?

Health, safety and welfare of people at work. Employers and employees responsibilities

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Basic fundamentals of the Health and Safety at Work Act?

Employers responsibility to provide safe workplace, PPE, accident reports.

Employees responsibility to respect rules, wear PPE, report accidents

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Maximum weight for someone to lift manually?

20kgs

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Basic requirements for team lifting?

Everyone understands job involved
Area is clear
Weight evenly distributed
Person in charge not involved in lifting, observing for safety, etc

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Function of Barrier Cream?

Prevents oils and fuel drying out skin, dermatitis

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What are the reactions of the body when subjected to a 100V shock?

001 Amp - Sensation
012 Amp - Muscular contraction
1 Amp - Death

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Treat someone for electric shock?

Remove victim from supply using insulated material e.g rubber gloves
Treat for shock, keep them warm
Get medical assistance

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Under what conditions should electrical equipment never be handled?

If it is unserviceable (damaged) or dangerous to do so

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Hazards of Compressed Gases?

Embolism
Spontaneous combustion when in contact with oil or grease
Oxygen intensifies a fire
Static electricity can cause a spark

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Checks before using compressed air and air hoses?

No horseplay 
Disconnect when not in use 
Replacing drill bits 
Eye protection 
Good serviceability 
Protective caps fitted to cylinders

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How are leak tests performed on oxygen systems?

Approved solutions

Bubbles

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What is COSHH?

Control Of Substances Hazardous to Health

Employer

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What is MSDS?

Material Safety Data Sheet

Employer

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What are Risk Assessments?

Checks for hazards and risks

Carried out by qualified assessor

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How can Dermatitis be prevented?

Barrier creams
Gloves
Remove oil or fuel soaked clothes

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What must be done before carrying out work in fuel tanks?

Tanks completely emptied 
Vented/purged 
Explosiometer check 
Safety man 
Alternating turns

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What classifications of fires are there?

Class A - wood, paper 
Class B - petrol, oils 
Class C - flammable gases 
Class D - metals 
Class F - cooking oils and fats 
Electrical fires

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What extinguisher is suitable for what type of fire?

Water - class A
Carbon Dioxide - class B and electrical
Dry Powder - class B, C and D
Halon Class - B and C
Aqueous Film Forming Foam - class A and B - spills
Film Forming Foam Fluroprotein - better for deep pools

What does AFFF stand for?

Aqueous Film Forming Foam

What does FFFP stand for?

Film Forming Foam Fluroprotein

Good tool control?

Tagging
Shadow boards
Barcodes

Actions on an aircraft/engine fire?

Shut down all systems 
Call emergency services 
Remove all equipment from area 
Assist fire service 
Recover aircraft 
Report to AAIB within 72 hours

What is FOD?

How to prevent it?

Anything that could get sucked into the engine

Constant FOD checks carried out

What is Tool Husbandry?

Keep them serviceable - lubrication
Inspection
Organised
Damaged tools to be discarded

What quality of work should you strive for?

The highest quality

What pressure is an aircraft engineer usually under?

High pressure Time Possibly distracted - personal problems

How should long tubes or bars be stored?

Vertically to prevent bowing

Under what conditions should aircraft materials be stored?

In suitable conditions specified in SRM

What is the minimum material and component identification requirements?

Part number Batch number Certificate of conformity

What systems of measurement are used today in aviation?

Imperial and metric

What is general tolerance?

Usually given for all dimensions on a drawing and is stated in a printed box on the drawing

How are individual tolerances expressed?

When the general tolerance is not appropriate, an individual tolerance is given. Individual tolerance of one part rather than general tolerance of whole drawing

What is Nominal Dimension?

The exact dimension required in the design

What is Tolerance?

An allowable manufacturing deviation from the Nominal Dimension

What is Allowance?

A planned deviation form from the nominal or theoretical dimension. The degree of allowance will give the type of fit for the two items i.e clearance fit, interference fit

What are the difference between Mega and Micro? | Kilo and Milli?

Mega - 1x10^6 Micro - 1x10^-6 Kilo - 1x10^3 Milli - 1x10^-3

What is a nautical mile?

Based on 1/60 of one degree of the earth’s circumference at the equator. Approx 6080 ft

How many inches in a metre?

39.37

How do you convert inches to millimetres? Vice Versa?

Multiply by 25.4 Divide by 25.4

What is a Parallax Error?

Eye not at the correct angle. When taking measurements with a scale, it should be held so that the graduation lines are as close as possible to the face.

What are Feeler gauges? Used for?

Made up of a number of thin steel leaves that fold into a handle like a pocket knife. These leaves can be inserted into a gap to measure the size. Can use 3 or 4 together

What is a ball gauge? Used for?

Devices fitted into a hole and adjusted to fit the hole snuggly. Gauge is then removed and diameter is measured to determine hole’s size

What are the rules for “Marking Out?”

Never use lead pencil on titanium - cause cracking Soft lead pencil on aluminium Mark only once, only thin lines Scriber markers only used for scribe lines, remove lines after

What is a combination set? Used for?

Ruler, protractor, centre head Used for measuring straight lines and angles