Aircraft Safety

Question 1

If the engines of the UH-60are running where should you approach from

Answer 1

45-90 to the front and always keep pilot in view

Question 2

What is the circumference of a UH-60 helecopter blades

Answer 2

53-8

Question 3

What can result as a result of inappropriate procedures and unsafe acts around an aircraft?

Answer 3

Death or injury

Question 4

Danger areas of UH-60

Answer 4

12, Exhaust, Tail rotor

Question 5

How hot can the exhaust be

Answer 5

800 degrees

Question 6

What are the three danger zones on a UH-60

Answer 6

Exhaust, 12 O’clock, Tail rotor

Question 7

Crash kit

Answer 7

Crash axe, first aid kit, fire extinguisher

Question 8

How are the emergency exit handles colored

Answer 8

Black and yellow or red

Question 9

What is the flight line speed

Answer 9

15 MPH

Question 10

Who always has the right of way

Answer 10

Aircraft

Question 11

When do FOD walks occur?

Answer 11

Weekly, pre/post work checks, pre/post flight

Question 12

Noise

Answer 12

Loud
Unpleasant
Unwanted

Question 13

What number of decibels starts to damage your hearing

Answer 13

85 dB

Question 14

What amount of decibels can cause eardrum rupture

Answer 14

160 dB

Question 15

Name some sources of vibrations

Answer 15

• Increased air speed
• Internal and external loading
• Enviromental factors(turbulence)
• Most intense during transition from hover to cruise flight

Question 16

Characteristics of noise induced hearing loss

Answer 16

• Insidious and undetectable
• 85-140 dB
• 3000-6000 Hz affected

Question 17

TTS Rule starting at 85dB

Answer 17

8hrs at 85dB
1/2 the time for every 5 decibel

Question 18

What do HGU-56’s do?

Answer 18

Bring noise exposure within the confines of damage risk criteria for all aircraft except UH-60 & CH-47

Question 19

Name some warning signs of hazardous noise

Answer 19

You must raise your voice to be heard, You can’t hear someone speaking from two feet away, Speech around you sounds muffled or dull after leaving a noise area, You have pain or ringing on your ears (tinnitus) after exposure to noise

Question 20

The Surgeon General has established ______ decibels as the maximum level of continuous unprotected exposure to steady-state noise for 8 hours

Answer 20

85

Question 21

Physical effect of vibrations(Performance)

Answer 21

• Simple Task completion
• Manual coordination
• Vision
• Speech

Question 22

Physical Effects of vibrations(Short term)

Answer 22

• Fatigue
• Respiratory Effects
• Circulatory Effects
• Motion Sickness
• Disorientation
• Pain

Question 23

Physical Effects of vibrations(Long term)

Answer 23

• Backache
• Bones
• Organs(Kidney, lung, hemodynamics)

Question 24

Give some examples of toxic substance in an Aviation environment

Answer 24

Aviation fuels and fuel combustion products, Solvents and degreasers, Lubricants, Hydraulic fluids, Fire extinguishers,
Composites and plastics

Question 25

How can you protect yourself from toxic substances in an Aviation Environment?

Answer 25

- Prevent contamination of your AACU / NOMEX flight suits. - Smoke and eat only in authorized areas. - Hand washing decreases risk of ingesting a toxin. - Wear personal protective equipment (PPE).