Sleep and Fatigue: DGCA Air Regulations questions

Question 1

How long is a free running circadian rhythm?

Accepted Answer

25 hours

Answer

24 hours

Answer

48 hours

Answer

29 hours

Question 2

When is the circadian cycle of temperature at its lowest?

Accepted Answer

At about 0500 hrs

Answer

At about 0100 hrs

Answer

At about 0300 hrs

Answer

Varies from day to day

Question 3

What does the duration of sleep depend on?

Accepted Answer

Timing i.e. when the body temperature is falling

Answer

The mental and physical exercise taken prior to sleep

Answer

The number of hours awake prior to sleep

Answer

The quality of the REM sleep

Question 4

What is the maximum number of sleep credits that can be accumulated and what is the minimum time to accumulate them?

Accepted Answer

16 credits and it will take 8 hours

Answer

24 credits and it will take 12 hours

Answer

8 credits and it will take 16 hours

Answer

16 credits and it will take 12 hours

Question 5

When does orthodox slow wave sleep occur and what does it restore?

Accepted Answer

It occurs early in the sleep cycle - stages 3 & 4 and it restores the body

Answer

It occurs early in the sleep cycle - stages 3 & 4 and it restores the brain

Answer

It occurs early in the sleep cycle - stages 1 & 2 and it restores the body

Answer

It occurs late in the sleep cycle - stages 3 & 4 and it restores the brain

15 more questions in this chapter, free with an account