PASS - HPL 1 | Take the Quiz

Having given blood, a pilot should see a doctor because of the increased susceptability to:

Hypoxia

Low Blood Pressure

Hyperventilation

Decompression Sickness (DCS)

The pressoreceptors have signalled low blood pressure. The body's response is to:
a. Increase the rate of breathing
b. Increase cardiac input
c. Increase heart rate
d. Relax the blood vessels
e. Decrease heart rate
f. Tighten the blood vessels

A, b, c, & d

B, c, & f

D & e only

A, c, & d

Accidents are caused by lack of:

Good Judgement

Safe Maintenance of Aircraft

Interpersonal Relations

Physical & Mental Skills

A pilot should consult an aviation medicine specialist before donating blood because:

Donation may lead to a rise in blood pressure (Hypertension)

Donation may lead to a lowering of blood pressure (Hypotension)

Donation may lead to a reduced tolerance of altitude

Donation may lead to a lowering of the body temperature causing unpredictable sleepiness

A person is suffering from anaemia when they:

Lack haemoglobin

Lack platelets

Lack blood plasma

Lack white blood cells

The blood of the pulmonary vein is:

Rich in oxygen & lack in CO2

Rich in oxygen & rich in CO2

Lack in oxygen & rich in CO2

Lack in oxygen & lack in CO2

As a result of hyperventilation, the blood becomes:

More acidic

More alkalic

More saturated with CO2

Less saturated with O2

When blood pressure is measured during an aviation mecial examination, the pressure is:

The venous pressure

The pressure of O2 in the blood

The pressure in all of the blood vessels, being representative of the pressure over the whole body

Arterial pressure in the upper arm, being equivalent to that of the heart

The oxygen-carrying capacity of a smoker who smokes 20 to 30 cigarettes a day is reduced by approximately

8-10%

12-18%

20-25%

0.2-2%

Blood from the pulmonary artery is:

Rich in oxygen and low in carbon dioxide

Rich in oxygen and rich in carbon dioxide

Low in oxygen and low in carbon dioxide

Low in oxygen and rich in carbon dioxide

What is the carcinogenic substance in cigarettes that can modify cells & cause cancer?

Tar

Nicotine

Lead

Carbon Monoxide

Haemoglobin is:

Dissolved in the blood

In red blood cells

In white cells of the blood

In the platelets

Which instrument introduced in the 1980s led to the greatest reduction of accidents?

SSR

DME

GPWS

TCAS

With a pulse rate of 72 beats a minute & a stroke volume of 70ml, what is the cardiac output?

8L/min

6L/min

5L/min

7L/min

If someone is hyperventilating, the blood contains too much:

Acid

Alkaline

CO2

Haemoglobin

The body gets its energy from:

1.Minerals
2.Carbohydrates
3.Protein
4.Vitamins

1 & 4 only

2 & 3 only

1,2 & 4

3 & 4 only

Who is responsible for Air Safety?

Air Crew & Ground Crew

Air Crew & Ground Crew, and Management

Everyone Involved

Air Crew

Having donated blood, air crew should:

Rest supine for at least 1 hour, drink plenty of fluids, & not fly for 48 hours

Rest supine for about 15-20 minutes, drink plenty of fluids, & not fly for 24 hours

Air crew are prohibited from donating blood

Aircrew are not encouraged to give blood

Human factors have been statistically proved to contribute approximately:

50% of aircraft accidents

70% of aircraft accidents

90% of aircraft accidents

Have not played a significant role in aircraft accidents

Smoking reduces the blood's ability to carry oxygen because:

The inspiratory tract becomes obstructed

CO2 takes a larger lung volume

Haemoglobin has a greater affinity for CO

CO gets trapped in the alveoli & restricts internal respiration

Which of the following actions is the most efficient to accelerate the release of Carbon Monoxide from the blood?

Inhalation of pressurised oxygen

Inhalation of pressurised carbon dioxide

Inhalation of a mixture of unpressurised oxygen & air

Inhalation of a mixture of unpressurised carbon dioxide & air

Among the symptoms of hypoxia are:
1. Impaired Judgement
2. Fast & Heavy Breathing
3. Impairment of Vision
4. Muscular Impairment

1 & 3

1, 3, & 4

1, 2, & 4

1, 2, 3, & 4

Which of the following is true with respect to the cause of decompression sickness?

Altitudes above 18,000 ft in an unpressurized aircraft

Altitudes above 5000 ft

Climbing at more than 500 ft/min to altitudes greater than 18,000 ft

Temperatures greater than 24C at altitudes of over 2,000 ft

Decompression Sickness (DCS) is caused by:

Oxygen coming out of a solution

Carbon Dioxide coming out of a solution

Nitrogen coming out of a solution

Carbon Monoxide coming out of a solution

6. Which of the following factors decrease resistance to DCS?
1. Body Height
2. Scuba Diving
3. Obesity
4. Age

1,2, & 4

3 & 4

1,2, & 3

2,3, & 4

The contents of exhaled air contains:

Less water vapour than the inhaled air

More nitrogen than the inhaled air

More oxygen than the inhaled air

More CO2 than the inhaled air

8. Circulation of the blood is for:
1. Transportation of O2 to the cells of the body
2. Withdrawal of the waste products from the cells
3. Convey nutrients to the cells

1 & 2

2 & 3

1 & 3

1, 2, & 3

What chemical substance in tobacco causes addiction?

Tar & Nicotine

Tar & CO

Nicotine & CO

Nicotine

Which of the following is correct concerning O2 & blood?

Arterial blood is darker than venous blood

Blood plasma is oxygenated at the heart

Diffusion of oxygen from the alveoli to the blood is not dependent on the partial pressure

Diffusion from the blood to the cells is dependent on the partial pressure of oxygen (diffusion at both tissue & alveolar levels is related to partial pressure)

The composition of the atmosphere at 21,000 ft is approximately:

78% He, 21% O2, & 1% CO

78% He, 21% O2, & 0.003% CO2 + traces

78% N, 21% O2, & 1% CO2 + traces

78% N, 21% O2, & 1% CO + traces

Time of useful consciousness (TUC) following loss of pressurization at 35,000 ft is:

3-4 minutes

5 minutes upwards

30-60 seconds

10-15 seconds

PASS - HPL 1

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