11 Questions

Questions

	1.	How long is a free running circadian rhythm?
		a.	24 hours
		b.	48 hours
		c.	25 hours
		d.	29 hours
	2.	When is the circadian cycle of temperature at its lowest?
		a.	At about 0500 hrs
		b.	At about 0100 hrs
		c.	At about 0300 hrs
		d.	Varies from day to day
	3.	What does the duration of sleep depend on?
11		a.	The mental and physical exercise taken prior to sleep
		b.	The number of hours awake prior to sleep
Questions		c.	Timing i.e. when the body temperature is falling
		d.	The quality of the REM sleep
	4.	What is the maximum number of “sleep credits” that can be accumulated and what
		is the minimum time to accumulate them?
		a.	24 credits and it will take 12 hours
		b.	8 credits and it will take 16 hours
		c.	16 credits and it will take 12 hours
		d.	16 credits and it will take 8 hours
	5.	When does orthodox (slow wave sleep) occur and what does it restore?
		a.	It occurs early in the sleep cycle - stages 3 & 4 and it restores the body
		b.	It occurs early in the sleep cycle - stages 3 & 4 and it restores the brain
		c.	It occurs early in the sleep cycle - stages 1 & 2 and it restores the body
		d.	It occurs late in the sleep cycle - stages 3 & 4 and it restores the brain
	6.	If the sleeper awakes early, how does this affect the next sleep pattern?
		a.	The sleeper goes into a “sleep deficit” and will need more sleep
		b.	The sleeper goes into a “sleep deficit” and will need twice the amount of sleep
			lost to catch up
		c.	They will “rebound” so that the current sleep pattern will make up those
			stages lost in the previous spell of sleep
		d.	The sleeper goes into a “sleep deficit” which is carried forward
	7.	How many stages are there in a sleep cycle?
		a.	3 stages plus REM
		b.	4 stages plus REM
		c.	3 stages including REM
		d.	4 stages including REM

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			Questions		11
	8.	How long is a sleep cycle?
		a.	90 minutes
		b.	120 minutes
		c.	60 minutes
		d.	30 minutes
	9.	What will an EOG trace during REM sleep?
		a.	Little activity
		b.	A lot of activity
		c.	Intermittent activity
		d.	No activity
	10.	What is the function of REM sleep?
		a.	To refresh the body after exercise
		b.	To refresh the body and brain following physical and mental activity
		c.	To assist in the organization of memory and helping to coordinate and
			assimilate new information learned	11
		d.	To exercise the brain so it is prepared for the next day
					Questions
	11.	As a general rule, if a pilot is rostered for a flight which returns within 24 hours,
		should he adjust his/her sleep pattern?
		a.	Yes
		b.	Yes - as soon as possible
		c.	Yes - over the next 48 hours
		d.	No - stay on UK time
	12.	As a general rule, if a pilot is rostered for a flight which has 24 hours or more in
		a country where there is a time zone difference, should he adjust his/her sleep
		pattern?

a.Yes and try and arrange it so that the sleep pattern allows 8 hours sleep before wakeup call

b.Yes and try and arrange it so that the sleep pattern allows 10 hours sleep before wakeup call

c.No - stay on UK time

d.No - not necessary unless he/she stays for over 48 hours

13.How long does it take for the circadian rhythm to resynchronize to local time after crossing time zones?

a.Approximately 2 days per 1 to 2 hours of time change

b.Approximately 1 day per 1 to 2 hours of time change

c.Approximately 2 days per 1 to 1½ hours of time change

d.Approximately 1 day per 1 to 1½ hours of time change

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11 Questions

Questions 11

14.Does it make any difference to the circadian rhythm adjusting to time zone changes if the flight is to the East or West?

a.Yes, due to the free running of the circadian rhythm tends to adjust more quickly to West bound flights

b.Yes, due to the free running of the circadian rhythm tends to adjust more quickly to East bound flights

c.No - it make no difference. West or East have the same effect

d.Yes, due to the free running of the circadian rhythm tends to adjust more slowly to West bound flights

15.What effect does drinking alcohol before sleep have to the sleep pattern?

a.A small amount (one beer or a small whisky) is of help to relax the body prior to sleep and thus enhances the sleep pattern

b.It lengthens REM sleep and the length of sleep

c.It shortens REM sleep and the length of sleep

d.It has no significant effect on the sleep pattern itself but does affect other systems of the body adversely

16.When suffering from sleep deprivation, will performance be further decreased by altitude?

a.No

b.Yes

c.Sometimes

d.Under certain circumstances

17.Hypovigilance is akin to a microsleep.

a.True

b.False

18.The two forms of fatigue are:

a.mental and physical

b.short-term and chronic

c.mental and body

d.psychological and physiological

19.Insomnia is divided into:

a.psychological and physiological

b.mental and physical

c.clinical and situational

d.clinical and physiological

20.Can you fly suffering from narcolepsy?

a.Under the strict supervision of an aviation medical specialist

b.Sometimes - it depends on the degree

c.Never

d.By day only

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Questions 11

Questions 11

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