Workshop And Safety

Question 1

Around how low could a fatal amperage be?

Answer 1

0.1A

Question 2

Precautions on aircraft when working with electricity?

Answer 2

Pull and tag circuit breakers- put back afterwards
Disconnect battery
Place warning signs at external power receptacles to leave aircraft powered down
Put switches back to correct positions before applying power

Question 3

General electricity precautions (workshop and aircraft)

Answer 3

Don’t interact with when wet or in a wet area
Avoid using electrical power tools- pneumatic ones are best
Don’t dangle wires and cables over sharp edges
Ensure cables aren’t frayed and insulation isn’t damaged
Never trail through oil, water, or other liquids
All equipment should be plugged or earthed
Regularly check electrical equipment
Only use explosion proof equipment in areas such as fuel tanks

Question 4

What could happen if gas escape from a bottle is not controlled?

Answer 4

Explosive decompression and potential rupture of the bottle

Question 5

What should be done before charging any gas bottles on an aircraft?

Answer 5

Check calibration date of pressure gauge on both bottles
Purge hose before connecting to remove contaminants
Ensure connections are tight

Question 6

How should a bottle be charged and why?

Answer 6

In slow increments to prevent the bottle becoming hot

Question 7

What is the operating pressure of compressed air?

Answer 7

80psi

Question 8

Safety precautions for using compressed air in the workshop?

Answer 8

Don’t point tools at others
Never direct air onto skin- air bubbles can enter blood stream and cause death
Never fool around with supplies
Ensures hoses are in good condition and connections are well secured
Always disconnect supplies when not in use or when changing components such as drill bits

Question 9

Oxygen precautions

Answer 9

Avoid contact with oil and grease- combusts
Don’t smoke after working- attaches to clothes
Right tooling- sparks
Correctly bond and earth- stop ignition from sparks
Approved lubricants only
Oil free solutions for leak tests
Smell check before charging

Question 10

What is cascade charging and why would it be done?

Answer 10

Cascade charging uses 4 bottles of varying pressures are used to charge a gas bottle by using the lowest pressure first and building it up to the highest pressure until the maximum pressure of the bottle is met.
To avoid wasting gas.

Question 11

What is a cascade manifold used for.

Answer 11

To automatically switch between bottles during charging

Question 12

What are the general hazards from oils and chemicals?

Answer 12

Flammable
Slip from spills
Skin damage
Noxious fumes

Question 13

Who is responsible for making the MSDS sheets?

Answer 13

Manufacturer of the product

Question 14

What is COSHH?

Answer 14

Control of substances hazardous to health regulations

Question 15

What can be done to minimise the risk of the general hazards of oils and chemicals?

Answer 15

Use a fume cabinet
Respirators
Not Carrying matches or lighters
Wearing non-steel toe cap protective footwear (combustion)
Clean up spillages
Use protective gloves
Wash hands after contact and use refattening  cream
Use barrier cream prior to work

Question 16

What can an employer do to minimise exposure to COSHH substances?

Answer 16

Plan for emergencies
Find out the health hazards
Having risk assessments carried out by qualified assessors
Providing control measures
Maintaining control measures to a good condition
Provide information and health monitoring if required

Question 17

What is a load defined as?

Answer 17

Heavy and cumbersome objects that have to be loaded/unloaded from vehicles or moved around the workplace

Question 18

What is the maximum weight for one person to carry and what could happen if loads are too heavy or carried incorrect properly?

Answer 18

20kg

Back problems due to strain

Question 19

What should be done before moving a load and why?

Answer 19

Safely clear the route of any obstructions in case vision is obscured
Get assistance depending on the size

Question 20

What is the technique for individual lifting?

Answer 20

Lift and lower with knees
Keep back straight
Keep load close to body
Wear appropriate protection if load has any dangers

Question 21

What else could be caused by a poor lifting technique?

Answer 21

Damage to lumbar discs (slipped disc)

Question 22

What preparations should be done for team lifting?

Answer 22

Elect a leader to guide from a separate perspective (not lifting load)
Clear the route
Ideally have a lifting party of similar builds and height

Question 23

What is the leaders responsibilities for team lifting?

Answer 23

Make sure everyone understands task
Weight is distributed evenly
Has a position with good view of area
Any moved equipment is put back where it was

Question 24

What can happen to tools if left in a poor condition?

Answer 24

The tolls lose effectiveness and are potentially dangerous

Question 25

What should always be done with tools?

Answer 25

Treat them well
Lubricate regularly to prevent corrosion and seizing
Check of condition and any calibration dates before use

Question 26

Why is tool control important?

Answer 26

To ensure their has been no theft, or that the tool has been left in a place with potential danger for major damage.

Question 27

What are some tool control methods used by a stores?

Answer 27

Shadow boards
Tags
Tool register

Question 28

Why must calibration be checked to see if the tool is in date?

Answer 28

To ensure the tool is accurate and fit for use

Question 29

What is the general ruling on personal tools?

Answer 29

The tool must be clearly marked in a way that easily traces the tool back to them.

Question 30

What standard of workmanship should be had and why?

Answer 30

The highest level, due to the fact that the safety of lives depend on the best quality work possible

Question 31

Is there any instance where time should affect the work being done?

Answer 31

No there should always be time made for getting the work done to a safe standard.

Question 32

Why are the oxygen precautions followed?

Answer 32

To prevent the risk of a fire.