HPL Q07 - Threats to Aviation

Question 1

Which of the following applies when alcohol has been consumed?
Select one:

-Small amounts of alcohol increase visual performance

-Even after the consumption of small amounts of alcohol, normal cautionary attitudes may be lost

-Drinking coffee at the same time will increase the elimination rate of alcohol

-Acute effects of alcohol cease immediately when 100% oxygen is taken

Answer 1

-Even after the consumption of small amounts of alcohol, normal cautionary attitudes may be lost

Question 2

Flying a non-pressurised light aircraft at 9000ft, your passenger develops blue lips. What action should you take?

a.Supply oxygen but maintain altitude as the partial pressure of oxygen never results in symptoms below 10,000ft

b.Assume hyperventilation and supply oxygen

c.Attempt to calm the passenger

d.Assume hypoxia, reduce altitude and supply oxygen

Answer 2

d.Assume hypoxia, reduce altitude and supply oxygen

Question 3

After scuba diving (deeper than 10m) you must wait for a period of time before flying. This period is at least:

a.24 hours

b.6 hours

c.48 hours

d.12 hours

Answer 3

a.24 hours

Question 4

Which option correctly identifies, from the list below, all the symptoms that a pilot may experience when suffering with hypoxia?
1. Fatigue
2. Euphoria
3. Lack of concentration
4. Pain in the joints
5. Pain in the inner ear.

Select one:

a.1 and 5 only.

b.1,2 and 3 only.

c.4 and 5 only.

d.1,2,3 and 4 only.

Answer 4

b.1,2 and 3 only.

Question 5

The crucial symptom of hypoxia that is considered to be the most dangerous with regard to safe flight is :
Select one:

a.A lack of accommodation.

b.Light headedness and dizziness.

c.A lack of adaption to low light levels.

d.A reduction in reasoning and perception.

Answer 5

d.A reduction in reasoning and perception.

Question 6

Which statement about carbon monoxide is correct?

a.Carbon monoxide has no affinity to haemoglobin

b.Carbon monoxide is colourless and odourless

c.Carbon monoxide increases the oxygen saturation in the blood

d.With increasing altitude, the negative effects of carbon monoxide can be compensated for

Answer 6

b.Carbon monoxide is colourless and odourless

Question 7

Some hours after a rapid decompression at FL 300 you experience pain in the joints. Which of following answers is correct?

Select one:

-This phenomenon is treated by physiotherapy.

-This symptom indicates decompression sickness and will disappear when you take some exercise.

-You should ask for medical advice (flight surgeon) since this is a symptom of decompression sickness.

-This phenomenon is treated by breathing 100% nitrogen.

Answer 7

-You should ask for medical advice (flight surgeon) since this is a symptom of decompression sickness.

Question 8

During flight all crew members have one or more of the following symptoms:
1 - Blue lips
2 - Mental disturbances
3 - Tingling sensations in arms and/or legs
4 - Reduction of peripheral vision
What is the possible cause?

Select one:

-Hypothermia

-Glaucoma

-Hypoxia

-Hypoglycaemia

Answer 8

Hypoxia

Question 9

Adverse effects of carbon monoxide increase as:
Select one:

-altitude decreases

-altitude increases

-air pressure increases

-relative humidity decreases

Answer 9

-altitude increases

Question 10

During a steady climb above FL100, if cabin pressurisation fails, the:
Select one:

a.Cabin will cool rapidly.

b.Cabin altitude will descend.

c.Effects of Hypoxia may be gradual and difficult to recognise.

d.Onset of anaemia causes hyperventilation.

Answer 10

c.Effects of Hypoxia may be gradual and difficult to recognise.