01. Safety Precautions Aircraft and Workshop

Question 1

A dry powder extinguisher is coloured.

Option A. green.

Option B. red.

Option C. blue.

Answer 1

Correct Answer is.

blue.

Explanation. BS EN3.

Question 2

Acetylene gas forms an explosive compound with.

Option A. tin and silver.

Option B. tin and copper.

Option C. copper and silver.

Answer 2

Correct Answer is.

copper and silver.

Question 3

When mixing acid and water.

Option A. the acid should always be added to the water.

Option B. it does not matter which way the two are mixed.

Option C. the water should always be added to the acid.

Answer 3

Correct Answer is.

the acid should always be added to the water.

Question 4

You are involved with a fire caused by titanium swarf. What type of extinguishant should you use to deal with the fire?.

Option A. Dry asbestos wool and chalk powder.

Option B. CO2.

Option C. Chemical foam.

Answer 4

Correct Answer is.

Dry asbestos wool and chalk powder.

Explanation. BL/6-18 12.5.

Question 5

An aircraft should not be refueled when.

Option A. the APU is running.

Option B. navigation and landing light in operation.

Option C. within 10 metres (30 feet) of radar operating.

Answer 5

Correct Answer is.

within 10 metres (30 feet) of radar operating.

Explanation. AL/3-8 2.1.6, GOL/1-1 7.3.2.

Question 6

The minimum ‘no smoking’ zone around an aircraft when refuelling is.

Option A. 15m.

Option B. 10m.

Option C. 6m.

Answer 6

Correct Answer is.

6m.

Explanation. Leaflet 5-1 2.2.2.

Question 7

A CO2 extinguisher is used on.

Option A. solid, liquid, hot metal and electrical fires.

Option B. solid, liquid and electrical fires.

Option C. solid and liquid fires.

Answer 7

Correct Answer is.

solid, liquid and electrical fires.

Explanation. Hot metal and liquid fires would be extinguished with foam.

Question 8

In an oxygen system, if the pressure drops to 500 PSI, it.

Option A. causes anoxia.

Option B. begins to overheat.

Option C. blocks the oxygen system regulator.

Answer 8

Correct Answer is.

blocks the oxygen system regulator.

Explanation. At low pressure, air can mix with the oxygen. The moisture in the air freezes as the gas expands on exit of the system and blocks the regulator. Jeppesen A&P Airframe Technician Page 14-17.

Question 9

After working with epoxy resins, how is natural oil returned to the skin?.

Option A. Epoxy removing cream.

Option B. Refatting cream.

Option C. Acetone/lanolin mixture.

Answer 9

Correct Answer is.

Acetone/lanolin mixture.

Explanation. Acetone is used to remove epoxy resin, but it dries the skin, so it is mixed with lanolin to prevent this (same mixture as nail varnish remover).

Question 10

Neither oil nor grease should be used as a lubricant on couplings or pipelines carrying.

Option A. Oxygen.

Option B. Kerosene.

Option C. Nitrogen. Correct

Answer 10

Answer is.

Oxygen.

Explanation. AL/3-25 5.4 (vi). Question Number.

Question 11

Which type of extinguisher can be used for an electric fire?.

Option A. Foam.

Option B. Water.

Option C. CO2. 3.3.

Answer 11

Correct Answer is.

CO2.

Explanation. AL/3-10

Question 12

Question Number. 12. The colour of CO2 type fire extinguisher is.

Option A. red.

Option B. black.

Option C. green.

Answer 12

Correct Answer is. black.

Question 13

Which type of extinguisher can be used for engine fire?

Option A. CO2.

Option B. BCF.

Option C. Water.

Answer 13

Correct Answer is. CO2.

Explanation. Leaflet 5-1 4.2.4 (a).

Question 14

Fire on landing gear brake should be extinguished with.

Option A. dry powder extinguisher.

Option B. carbon dioxide extinguisher.

Option C. water extinguisher.

Answer 14

Correct Answer is.

dry powder extinguisher.

Explanation. AL/3-19 10.4. Jeppesen A&P Mechanics Handbook Page 503, CAAIP S Leaflet 5-8 10.4. Question Number.

Question 15

Which type of fire extinguishers can be used in the cabin?.

Option A. C.T.C.

Option B. water or B.C.F.

Option C. M.B.

Answer 15

Correct Answer is.

water or B.C.F.

Explanation. Methyl Bromide and CTC extinguishers are toxic. Jeppesen A&P Mechanics Handbook Page 502 and 504.

Question 16

Risk assessments should only be carried out on.

Option A. all tasks and processes that are performed.

Option B. tasks using hazardous chemicals.

Option C. tasks carried out above the height of 6 foot.

Answer 16

Correct Answer is.

all tasks and processes that are performed.

Question 17

The most appropriate fire extinguisher for an aircraft wheel and brake fire would be.

Option A. carbon dioxide.

Option B. dry powder.

Option C. water.

Answer 17

Correct Answer is. dry powder.

Explanation. AL/3-19 10.4. Question Number.

Question 18

Once a person has been disconnected from the source of an electrical shock the next step should be.

Option A. seek assistance immediately.

Option B. check for breathing start AR if necessary.

Option C. check for pulse start cardiac massage if necessary.

Answer 18

Correct Answer is.

check for breathing start AR if necessary.

Question 19

What can cause dermatitis?.

Option A. Washing hands in solvents.

Option B. Not wearing eye protection when using solvents.

Option C. Inhalation of paint fumes.

Answer 19

Correct Answer is.

Washing hands in solvents.

Question 20

If an oxygen cylinder pressure falls below 500 PSI.

Option A. the diluter stick will stick.

Option B. the oxygen will degrade and cause anoxia.

Option C. condensation will cause corrosion.

Answer 20

Correct Answer is.

condensation will cause corrosion.

Question 21

A significant difference between the two is that Halón 1211 forms a spray ____1____, while Halón 1301 has a vapor spray that is ____2____

Answer 21

1. similar to C02
2. more difficult to direct