ATMOSPHERES
Q.1
If pressu pressure re altitu altitude de is 3000 30000 0 ft amsl amsl and and mach mach numbe numberr is 0.84 0.84 what what is is the ISA ISA TAT ?
a.
-10.
b.
10.
c.
-12
d.
12.
Q.2
If indica indicated ted TAT TAT is is -10, -10, pressur pressured ed altitud altitudee is 30000 30000 ft. ft. amsl, amsl, and and mach mach number number is 0.84, what is the temperature deviation?
a.
2.
b.
-2.
c.
4.
d.
-4
Q.3
If pressu pressure re altitu altitude de is 4000 40000 0 ft. amsl, amsl, indi indicat cated ed TAT TAT is -29 what what is is the mach mach
number assuming ISA conditions? a.
0.7.
b.
0.75.
c.
0.8.
d.
0.85.
Q.4
If mach mach numbe numberr is 0.88 0.88 and and TAT TAT is -4, -4, what what is the the pres pressur suree altitu altitude de in the international standard atmosphere?
a.
22000 ft.
b.
24000 ft.
c.
26000 ft.
d.
28000 ft.
Q.5
If pressu pressure re altitu altitude de is 3000 30000 0 ft., ft., indica indicated ted TAT TAT is -10, -10, mach mach numb number er is 0.82, 0.82, what is the density altitude?
a.
31000 ft.
b.
30472 ft.
c.
30573 ft.
d.
30674 ft.
Q.6
If QNH is 999 hPa, what is the pressure altitude at an elevation of 25000 ft.
a.
25100 ft.
b.
25200 ft.
c.
25300 ft.
d.
25400 ft.
Q.7
if pressure altitude is 22800 ft, at an elevation of 22000 ft, what is QNH?
a.
985 hPa.
b.
976 hPa.
c.
1034 hPa.
d.
1026 hPa.
Q.8
The wind at an airfield is reported to be 330/30. What will be the wind component along and across runway 04?
a.
10 Kts headwind
28 kts crosswind from the left.
b.
10 kts tailwind
28 Kts crosswind from left the.
c.
28 kts headwind
10 kts crosswind from the right.
d.
28 Kts tailwind
10 Kts crosswind from the right.
Q.9
The maximum factorised cross wind that in which a particular MRJT aircraft can take-off is 10 Kts. What is the acceptable wind at 330 in which the aircraft can take-off from runway 09?
a.
2 Kts.
b.
32 Kts.
c.
12 Kts.
d.
22 Kts.
Q.10 The reported wind at an airfield is 270/30. What along track and across track wind components mustbe used in the take-off calculation for an MRJT using runway 29? a.
28 kts tailwind
10.5 Kts from the right.
b.
28 Kts headwind
10.5 Kts from the left.
c.
10.5 Kts headwind
28 kts from the right.
d.
10.5 Kts tailwind
28 Kts from the left.
Q.11 If field elevation is 4000 ft amsl and QNH is 900mb, what is the pressure altitude? a.
7390.
b.
6390.
c.
610.
d.
5540.
Q.12 If field elevation is 3500 ft amsl and QFE is 1020 mb, what is the pressure altitude a.
210.
b.
-210.
c.
3710.
d.
3290.
Q.13 If pressure altitude is 3700 ft amsl and QNH is 1000 mb, what is field elevation? a.
3310.
b.
3210.
c.
390.
d.
490.
Q.14 Take-off and landing performance must be calculated based on ---- and ---respectively? a.
Forecast temperatures
Forecast temperatures.
b.
Forecast temperatures
Actual temperatures.
c.
Actual temperatures
Actual temperatures.
d.
Actual temperatures
Forecast temperatures.
Q.15 If the OAT at a pressure altitude of 5000 ft. amsl is 10 o what is the temperature deviation? a.
-4.90C.
b.
+4.90C.
c.
-14.90C
d.
+14.90C.
Q.16 Density altitude is? a.
The altitude at which the existing density would occur in the ISA.
b.
The density at which the existing temperature would occur in the ISA.
c.
The elevation at which the existing density would occur in the ISA.
d.
The pressure altitude corrected for density deviation.
Q.17 The pressure altitude of the field can be found by? a.
Setting QNH on the altimeter subscale.
b.
Setting QFE on the altimeter subscale.
c.
Setting 1013 mb on the altimeter subscale.
d.
From an ADC only.
Q.18 If field pressure altitude is 5000 ft amsl and OAT is 25 o C, What is the density altitude? a.
5000 + 118 - (25 - (15 – (5 x 1.98 ))) = 7348.2 ft.
b.
5000 - 118 - (25 - (15 + (5 x 1.98))) = 4988.2 ft.
c.
5000 + 118 - (25 + (15 – (5 x 1.98 ))) = 8551.8 ft.
d.
5000 - 118 - (25 + (15 + (5 x 1.98))) = 10888.2 ft.
Q.19 If QFE is 1022 hPa what is the pressure altitude of the field? a.
270 ft amsl
b.
-270 ft amsl
c.
30660 ft amsl
d.
500 ft amsl
Q.20 If QNH is 1000 hPa and field elevation is 4500 ft amsl, what is QFE? a.
850 hpa
b.
163 hPa
c.
-850 hPa
d.
900 hPa.
Q.21 Pressure altitude is? a.
The altitude above sea level.
b.
The altimeter indication when QFE is set on the sub-scale.
c.
The altimeter indication when QNH is set on the subscale.
d.
The altimeter indication when 1013.25 hPa is set on the sub-scale.
Q.22 Which of the following cause air density to decrease? a.
Increasing humidity, increasing altitude, increasing temperature.
b.
Increasing humidity, increasing altitude, decreasing temperature.
c.
Increasing humidity, decreasing altitude, increasing temperature.
d.
Decreasing humidity, increasing altitude, decreasing temperature.
Q.23 If QNH changes from 1013 hPa to 1022 hPa will? a.
Increase field elevation
b.
Decrease field elevation.
c.
Not affect field elevation.
d.
Decrease QFE.
Q.24 If QFE changes from 1013 hPa to 1022 hPa will? a.
Increase field elevation
b.
Not affect QNH.
c.
Increase QNH.
d.
Decrease QNH.
Q.25 EAS is?
a.
CAS corrected for adiabatic compression.
b.
IAS corrected for adiabatic compression.
c.
IAS corrected for instruments errors.
d.
IAS corrected for pressure sensing errors.
Q.26 As pressure altitude increases when climbing at constant IAS? a.
CAS will increase.
b.
CAS will decrease.
c.
TAS will increase.
d.
TAS will decrease.
Q.27 As pressure altitude increases when climbing at constant mach number? a.
CAS will increase.
b.
CAS will decrease then remain constant
c.
TAS will increase.
d.
TAS will decrease then remain constant.
Q.28 As pressure altitude increases. a.
Temperature decreases.
b.
Temperature increases.
c.
Temperature increases then remains constant.
d.
Temperature decreases then remains constant.
Q.29 When descending at constant CAS? a.
Dynamic pressure increases.
b.
Dynamic pressure decreases.
c.
Dynamic pressure remains constant then decreases.
d.
Dynamic pressure remains constant.
Q.30 At a fixed pressure altitude an increase in temperature will? a.
Decrease density but increase density altitude.
b.
Decrease density altitude.
c.
Not affect density altitude.
d.
Increase density but decrease density altitude.
Q.31 When descending through an inversion at constant TAS? a.
Mach number increases.
b.
Mach number decreases.
c.
Mach number remains constant.
d.
CAS decreases.
Q.32 When climbing through an inversion at constant TAS. a.
Mach number increases.
b.
Mach number decreases
c.
Mach number remains constant.
d.
CAS increases.
Q.33 When descending through an inversion at constant CAS? a.
TAS increases.
b.
Mach number increases.
c.
Mach number remains constant.
d.
TAS decreases.
Q.34 When climbing through an inversion at constant CAS? a.
TAS increases.
b.
Mach number increases.
c.
Mach number remains constant.
d.
TAS decreases.
Q.35 When climbing through an inversion at constant mach number? a.
CAS increases.
b.
TAS decreases.
c.
TAS remains constant
d.
TAS increases.
Q.36 When descending through an inversion at constant mach number? a.
TAS increases.
b.
TAS decreases.
c.
TAS remains constant.
d.
CAS increases.
Q.37 When climbing through an inversion at constant mach number? a.
CAS decreases.
b.
LSS decreases.
c.
TAS remains constant.
d.
TAS increases.
Q.38 When descending through an inversion at constant mach number? a.
CAS increases.
b.
LSS increases.
c.
LSS remains constant.
d.
TAS decreases.
Q.39 When climbing through an inversion at constant CAS? a.
TAS increases.
b.
TAS decreases.
c.
TAS remains constant.
d.
Mach number increases.
Q.40 When descending through an inversion at constant CAS? a.
TAS increases.
b.
TAS decreases.
c.
TAS remains constant.
d.
Mach number increases.
Q.41 When descending through an isothermal layer at constant TAS? a.
Mach number increases.
b.
Mach number decreases.
c.
Mach number remains constant.
d.
CAS decreases.
Q.42 When climbing through an isothermal layer at constant TAS? a.
Mach number increases.
b.
Mach number decreases.
c.
Mach number remains constant.
d.
CAS increase.
Q.43 When descending through an isothermal layer at constant CAS? a.
Mach number increases.
b.
Mach number decreases.
c.
Mach number remains constant.
d.
TAS increases.
Q.44 When climbing through an isothermal layer at constant CAS? a.
Mach number increases.
b.
Mach number decreases.
c.
Mach number remains constant.
d.
TAS decreases.
Q.45 When climbing through an isothermal layer at constant mach number? a.
TAS increases.
b.
TAS decreases.
c.
TAS remains constant.
d.
CAS increases.
Q.46 When descending through an isothermal layer at constant mach number? a.
TAS increases.
b.
TAS decreases.
c.
TAS remains constant.
d.
CAS decreases.
Q.47 When climbing through an isothermal layer at constant mach number? a.
CAS increases.
b.
CAS decreases.
c.
CAS remains constant.
d.
TAS decreases.
Q.48 When descending through an isothermal layer at constant CAS? a.
LSS increases.
b.
LSS decreases.
c.
LSS remains constant.
d.
TAS increases.
Q.49 When climbing through an isothermal layer at constant CAS? a.
TAS increases.
b.
TAS decreases.
c.
TAS remains constant.
d.
Mach number decreases.
Q.50 When descending through an isothermal layer at constant CAS? a.
TAS increases.
b.
TAS decreases.
c.
TAS remains constant.
d.
Mach number increases.
Q.51 If aerodrome elevation is 4000 ft. amsl, and QNH is 1025 hPa, what is the pressure altitude? a.
3540 ft.
b.
3640 ft.
c.
3740 ft.
d.
3840 ft.
Q.52 If pressure increases whilst temperature increases in the ISA? a.
Density will increase.
b.
Density will decrease.
c.
Density might Increase or decrease.
d.
Density will remain constant.
Q.53 If pressure increases whilst temperature increases in a non-standard atmosphere? a.
Density will increase.
b.
Density will decrease.
c.
Density might increase of decrease.
d.
Density will remain constant.
Q.54 If pressure remains constant as temperature increases? a.
Density will increase, causing the CAS: TAS ratio to increase.
b.
Density will increase, causing the CAS: TAS ratio to decrease.
c.
Density will decrease, causing the CAS: TAS ratio to increase.
d.
Density will decrease, causing the CAS: TAS ratio to decrease.
Q.55 Density altitude is? 1.
The elevation at which the prevailing density occurs in the ISA
2.
The Pressure altitude at which the prevailing temperature occurs in the ISA.
3.
The Pressure altitude at which the prevailing density occurs in the ISA.
a.
1.
b.
1 and 2.
c.
1 and 3.
d.
2 and 3.
Q.56 As altitude increase in the ISA? a.
The effects of decreasing pressured outweigh those of decreasing temperature, so aircraft performance decreases.
b.
The effects of decreasing temperature outweigh those of decreasing pressure so aircraft performance decreases.
c.
The effects of decreasing density outweigh those of decreasing pressure and temperature so aircraft performance decreases
d.
The effects of increasing TAS : CAS ratio outweigh those of pressure and temperature so aircraft performance decreases.
Q.57 What is density altitude? a.
Altitude at which prevailing conditions would occur in the ISA
b.
Altitude at which prevailing density would occur in the ISA.
c.
Altitude at which ISA conditions occur in the real atmosphere.
d.
Altitude found by dividing ambient density by actual density lapse rate.
Q.58 If the temperature is 12oC at a pressure altitude of 10000 ft. what is the density altitude? a.
11993 ft.
b.
12993 ft.
c.
13993 ft.
d.
14993 ft.
Q.59 If pressure altitude is 0 ft. and ambient temperature is 10 oC, what is the density altitude? a.
593 ft.
b.
-593 ft.
c.
1593 ft.
d.
-1593 ft.
Q.60 If field elevation is 1000 ft. amsl, QNH is 1025 mb, and QFE is 991.67 mb, what is the pressure altitude at the field? a.
-640 ft.
b.
1640 ft.
c.
640 ft.
d.
-1640 ft.
