Vayudoot Aviation

1. An aircraft is flying at constant indicated altitude, over a cold airmass. The altimeter reading will be

same as the real altitude

standard altitude

greater than the real altitude

less than the real altitude

2. In a turn at constant angle of bank ... the rate of turn is

dependant on weight and inversely proportional to TAS

independent of weight and proportional a to TAS

dependant on weight and proportional to TAS

independent of weight and inversely proportional a to TAS

3. A gravity erector system corrects errors on a

turn indicator

RIMC

artificial horizon

DGI

4. When turning through 900 at constant attitude and bank, a classic Artificial Horizon indicates

attitude and bank angle are correct

nose up and bank angle too low

nose up and correct angle of bank

nose up and bank angle too high

5. The maximum drift error sensed by an uncompensated DGI will be

30° per hour

15° per hour

60° per hour

45° per hour

6. What happens when the static vent supplying an ASI is blocked, and the ram air inlet remains clear?

ASI acts like an altimeter

ASI always under reads / reads a lower value

ASI acts opposite to an altimeter

ASI always over reads / reads a higher value

7. In a Remote Indicating Compass, what component feeds the Amplifier?

annunciator

flux valve

gyro precession signal

error detector

8. You are flying at a constant FL 290 and constant mach number. The total temperature increases by 50. The CAS will

will increase or decrease depending on whether you are above or below ISA.

decrease by 10 kts

increase by 10 kts

remain approximately constant

9. An aircraft fitted with a DRMC is landing in a southerly direction, in the Southern Hemisphere. What indications will be seen on the DRMC?

no apparent turn

turn to west

1800 turn to east

10. The properties of a gyro are: 1. mass 2. rigidity 3. inertia 4. precession 5. rotational speed

2 & 3

1,2, & 3

1 & 3

2 & 4

11. The gravity erecting device on a vertical gyro is used on which instrument;

directional gyro unit

artificial horizon

gyromagnetic device

turn indicator

12. The Directional Gyro Indicator (DGI) can

not align itself with magnetic north

can automatically align itself with magnetic north

have 2° of freedom

have 1° of freedom

13. A ring laser gyro consists of

Two moving cavities using mirrors

Two electrodes (anodes and cathodes)

A gyro with 2 degrees of freedom

A laser split into two beams

14. VLO is defined as

the minimum speed at which to fly with the landing gear extended

the maximum speed at which to fly with the landing gear extended

the maximum speed at which the landing gear may be retracted or extended

the maximum speed at which to fly with the landing gear retracted

15. The pressure measured at the forward face of the Pitot probe is

total pressure

total pressure + static pressure

dynamic pressure

static pressure

16. A rate integrating gyro is used in

inertial navigation system

autopilot system

inertial attitude unit

a rate of turn indicator

17. An aircraft is accelerating to take-off on a runway with a QDM of 045°. Which way does the DRMC move, if the aircraft is in the Northern Hemisphere?

correct if wings are level

correct

less than 45°

more than 45°

18. The frequency band used for a Radio Altimeter is

SHF

VHF

LF

UHF

19. What are the upper and lower limits of the yellow arc on an ASI?

lower limit VLE and upper limit VNE

lower limit VNO and upper limit VNE

lower limit VLO and upper limit VNE

lower limit VLO and upper limit VLE

20. The Turn Indicator is a useful gyroscopic instrument. When used in association with an attitude indicator will show: 1. angular velocity about the yaw axis 2. direction of turn 3. angular velocity about true vertical axis 4. speed of turn

1, & 3

3, & 4

1, & 2

2, & 3

21. What is the speed of sound at 25,000 ft and -28 degrees C

624kts

610kts

618kts

601kts

22. The properties of a Turn Indicator are: 1. One degree of freedom 2. two degrees of freedom 3. two springs connected to the aircraft frame 4. spin axis in the longitudinal plane 5. spin axis parallel to the yaw axis 6. spin axis horizontal

2, & 5

1, & 4

2, & 6

1, & 6

23. What is the Schuler period?

63 minutes

84 minutes

1 oscillation in azimuth

21 minutes

24. What is SAT?

relative temperature measured in °C

ambient temperature measured in °C

relative temperature measured in K

differential temperature measured in K

25. If the left static vent is blocked, and the right static vent is clear. What will the altimeter read if the aircraft maintains constant level?

if side slipping to the left, altimeter will over read.

under read

if side slipping to the right, altimeter will over read.

read correctly whatever the situation

26. An aircraft is fitted with two altimeters. One is corrected for position error, the other is not corrected for position error

ATC will receive erroneous information of flight level

at high speed the non-compensated altimeter will show a higher altitude

provided that the ADC is working normally, there will be no error to either altimeter

at high speed the non-compensated altimeter will show a lower altitude

27. On board a/c, true altitude shown from:

density altitude.

temperature altitude.

standard atmosphere.

pressure altitude.

28. True heading can be converted into magnetic heading using a compass and

A map with isoclinal lines.

A deviation curve

A map with isogonal lines.

A deviation card.

29. On a turn and slip indicator, needle to the left and ball to the right indicates

turn to the left, too much bank.

turn to the left, not enough bank.

turn to the right, not enough bank.

turn to the right, too much bank.

30. VNO is the max. speed which

must not be exceeded for flap/gear extension

the pilot can fully deflect the controls.

should never be exceeded.

should only be exceeded in still air and with caution

31. What is VMO calculated from

COAS

CAS

TAS

EAS

32. An aircraft is flying at constant indicated altitude, over a warm airmass. The altimeter reading will be

greater than the real altitude

oscillating around the correct altitude

correct

less than the real altitude

33. In a slightly banked turn, the turn needle will indicate:

rate of yaw.

roll rate.

angular velocity about the vertical axis.

rate of pitch.

34. What is the purpose of the latitude nut in a DGI?

to correct for latitude error

to correct for coriolis error

to correct for transport wander

to correct for earth rate

35. In a DGI what error is caused by the gyro movement relative to the earth?

latitude error

Transport Wander

real wander

Earth Rate

36. A factor giving an error on a direct indicating compass would be

acceleration on east/west headings

crosswinds – particularly on east/west headings

turning through east/west headings

parallax due to oscillations of the compass rose

37. What is indicated on the ASI when the static vent blocks during a descent?

reads zero

reads correctly

over reads

under reads

38. Using a classic Artificial Horizon, the a/c performs a right turn through 270 degrees at a constant angle of bank and rate of turn. The indication is

Nose up, too much bank.

Bank and pitch correct.

Nose up, wings level.

Nose up, not enough bank.

39. What is the normal operating range of a low altitude Radio Altimeter?

0 to 7,500ft

0 to 2,500ft

0 to 10,000ft

50ft to 2500ft

40. Mach number is defined as

The ratio of dynamic pressure to static pressure

The ratio of pitot pressure to dynamic pressure

The ratio of static pressure to dynamic pressure

The ratio of static pressure to pitot pressure

41. The errors of a DGI are: 1. earth rate 2. transport wander 3. banking when pitched up 4. annual movement of poles 5. mechanical problems

2, 3, & 5

all 5

1, 2, 3, & 5

3, 4, & 5

42. The main cause of error in a DRMC is

latitude

turning

magnetic deviation

parallax in the rose

43. VNO is defined as

maximum structural cruising speed

never exceed speed

manoeuvring speed

maximum operating speed

44. A DGI has

one degree of freedom & a vertical spin axis

two degrees of freedom & a vertical spin axis

one degree of freedom & a horizontal spin axis

two degrees of freedom & a horizontal spin axis

45. In a left turn, the ball of the turn co-ordinator is out to the right, what corrective action is required?

more right rudder

more left bank

more left rudder

less right bank

46. If CAS is kept constant, what happens to the Mach No?

as the altitude increases the mach No will increase

as the altitude increases the mach No will decrease

as the temperature decreases the mach No will decrease

as the temperature increases the mach No will increase

47. If the needle and the ball of a Turn & Slip indicator both show right, what does it indicate

turn to right & too little bank

turn to left & too much bank

turn to right & too much bank

turn to left & too little bank

48. An aircraft, in the southern hemisphere, is decelerating to land on a westerly heading. The direct reading magnetic compass will indicate

an oscillation about west

an apparent turn to north

an apparent turn to south

correctly

49. If an aircraft, fitted with a DRMC, takes off on a westerly heading, in the northern hemisphere, the DRMC will indicate

oscillates about west

a turn to south

no turn

a turn to the north

50. The vertical reference of a data generation unit is

vertical axis with 2 degree of freedom

horizontal axis with 1 degree of freedom

horizontal axis with 2 degree of freedom

vertical axis with 1 degree of freedom

Question Bank

Questions for REVISION