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You scored 0 which is below the pass mark. You can retake the 13 question(s)

that you got wrong.

Question

56

(in database)

Complete the following statement. In the ICAO Standard Atmosphere (ISA), as altitude increases

in the Troposphere, pressure:

a) also increases.

b) decreases.

c) stays the same.

d will not

be

affected as pressure is independent of altitude.

The correct answer is b.

Question 52 (in database)

Complete the following statement. At altitude the pressure

of

oxygen in the atmosphere is :

a) the same as at mean sea level (MSL).

b) higher than at MSL

c) lower than at MSl.

d) unaffected, as partial pressure is independent of altitude.

The correct answer is c.

Question

55

(in database)

Complete the following statement. In the ICAO Standard Atmosphere (ISA), as altitude increases

in

the Troposphere, temperature:

a) also increases.

b) decreases.

c) stays the same.

d

will not

be

affected as it

is

independent

of

altitude.

The correct answer is

b.

Question 163 (in database)

In the Earth s Atmosphere, how does the proportion of Oxygen in the air change with altitude?

a) As altitude increases, the proportion

of

Oxygen

in

the air decreases.

b) As altitude increases, the proportion of Oxygen in the air increases.

c) There

is

no change

in

the proportion of Oxygen

in

the air with changing altitude . It remains

constant throughout the Atmosphere.

d

In the Troposphere, the proportion of Oxygen

in

the air decreases with increasing altitude, but

remains constant throughout the Stratosphere.

The correct answer is c.

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Question 58

in

database)

Complete the following statement. In the ICAD Standard Atmosphere (ISA),

as

altitude increases

in

the Stratosphere, temperature:

a) also increases.

b) decreases.

c) fluctuates between positive and negative temperatures.

d) remains almost constant at· 6 degrees Celsius.

The correct answer is d.

Question 57 in database)

Complete the following statement. In the ICAD Standard Atmosphere (ISA), as altitude increases

in

the Troposphere, air density:

a) decreases.

b) also increases.

c) stays the same.

d) will not

be

affected as air density is independent of altitude.

Th

e correct answer is a.

Question

50

(in database)

Complete the following statement. Air in the atmosphere is made up of:

a) Nitrogen (78%), Oxygen (21%), Carbon Dioxide (0.03%) and Hydrogen (1%).

b) Nitrogen (78)%, Oxygen (21°,,), Carbon Dioxide (0.03%) and Argon (1%).

c) Nitrogen (1%), Oxygen (78%), Carbon Dioxide (21%) and Argon (0.03%).

d) Nitrogen (21%), Oxygen (0.03%), Carbon Dioxide (78%) and Argon (1%).

The correct answer is

b.

Question 5 (in database)

Complete the following statement. At altitude, the volumetric proportion of oxygen in the

atmosphere is:

a) the same as at mean sea level

MSl).

b

higher than at

MSl.

cl lower than at

MSl.

d) dependent

on

the actual altitude.

The correct answer is a.

I

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Question 49 in database)

tn which layer or layers of the atmosphere do conventional aircraft fly?

i. The Troposphere

ii . The Stratosphere

iii. The Ionosphere

a i

and ii.

b) ii and

iii.

cl i

and iii.

d i only.

The correct answer

is

a.

Question 53 in database)

Complete the following statement. The ICAD Standard Atmosphere ISA) sea-level pressure is

equal to:

a) 1013.25 mb.

b) 1014.00 mb.

c)

1014.25 Hpa.

d 50 inches of mercury.

The correct answer is a.

Question 164 in database)

At what altitude will atmosph eric pressure be approximately half that at sea-level?

a) 36,000 ft.

b 18 ,000 ft.

cl 1 , 

ft

.

d 8 ft.

The correct answer is b.

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Quest

io

n 141 in database)

As an unpressurised aircraft climbs the amount of oxygen available to the pilot decreases

because of:

a) a decrease

in

atmospheric pressure.

b) a decrease in atmospheric temperature.

c) a decrease in the proportion of oxygen in the atmosphere .

d an increase in the proportion of nitrogen in the atmosphere.

The correct answer is

a.

Question 54 (in database)

Complete the following statement. If the atmospheric pressure decreases, the partial pressure

of

the oxygen

in

the atmosphere will:

11

incrp.II ,;p..

b) decrease.

c) stay the same.

d not be alfecled as it is independent

of

atmospheric pressure.

The oorrect answer is

b.