REVISION 3 – Air – DGCA Question Bank For Politics

#1. A modern Radio Altimeter uses the frequency band:

VHF 30 - 300 Mhz

SHF 3000 Mhz - 30 Ghz

UHF 300 Mhz - 3 Ghz

HF 3 Mhz - 30 Mhz

#2. An aircraft that is assessed as not being a threat would be indicated on a TCAS system as:

a solid red square

a solid white or cyan diamond

a hollow white or cyan diamond

a solid yellow circle

#3. During descent through a block of airspace of constant temperature and while flying at a constant mach no will cause the CAS to:

increase

decrease

remain constant

increase at a rate of 1·98°/1000 ft

#4. The true altitude of an aircraft in flight is shown from:

the standard atmosphere

pressure altitude

density altitude

temperature altitude

#5. On a Turn and Slip indicator, needle to the left and ball to the right indicates:

right turn not enough bank

left turn too much bank

left turn not enough bank

right turn too much bank

#6. What is Density Altitude?

temperature altitude

pressure altitude corrected for the prevailing temperature

the altitude in the International Standard Atmosphere at which the prevailing density would be found

pressure altitude corrected for Total Air Temperature

#7. A Radio Altimeter is:

ground based and measures true altitude

ground based and measures true height

aircraft based and measures true altitude

aircraft based and measures true height

#8. Which of the following are modes of the GPWS? i excessive sink rate ii altitude loss after take-off or go-around iii excessive glideslope deviation iv high climb rate v flaps in the incorrect position vi high altitude descent vii stall

i ii iii v

ii iii v vii

i ii iii vii

iii iv v vi

#9. An aircraft is travelling at 120 kt, what angle of bank would be required for a rate one turn?

30°

12°

19°

35°

#10. An aircraft is travelling at 100 kt forward speed on a 3° glideslope. What is its rate of descent?

500 ft/min

300 ft/min

250 ft/min

500 ft/sec

#11. What correction is given by TCAS?

turn left or right

climb or descend

contact ATC on receipt of a Resolution Advisory

climb or descend at 500 ft/min

#12. If the Total Pressure sensor supply line leaks, and with the drain element blocked, in a nonpressurised aircraft this will cause the ASI to:

under - read

over - read

over - read in the climb and under - read in the descent

under - read in the climb and over - read in the descent

#13. Using a Classic Attitude Indicator, an aircraft performs a turn through 270° at a constant angle of bank and rate of turn. The indication is:

nose up bank right

nose up bank left

nose up wings level

bank and pitch correct

#14. The needle and ball of a Turn Indicator are both to the left of the datum. This indicates:

a left turn with too much bank

a left turn with too little bank

a right turn with too little bank

a right turn with too much bank

#15. Under conditions determined by the International Standard Atmosphere, at MSL True Air Speed is:

greater than CAS

less than CAS

equals CAS

is indeterminate due to the variation in temperature

#16. In what range is GPWS operative?

2450 - 0 ft

3000 - 50 ft

2450 - 50 ft

3000 - 0 ft

#17. Which of the following are inputs to the central processing unit of the GPWS? i flaps ii landing gear iii glideslope iv unusual attitudes v radio altimeter vi VOR

i ii vi

i ii iii v

i ii iv v

i ii iii v vi

#18. What is another name for fail active?

fail soft

fail operational

fail safe

fail passive

#19. Why must an autopilot be synchronised when you wish to disconnect?

to ensure fail operational landings can continue safely

to allow automatic pitch trimming to reset

to secure against abrupt changes in aircraft attitude

to allow for FD coupling

#20. What is used for EGT measurement?

helical bi-metallic strips

thermistors

radiation pyrometry

thermo emf thermocouples

#21. When accelerating on a northerly heading what does the Direct Reading Magnetic Compass indicate?

no change

north

a turn to the west

a turn to the east

#22. Why is there a vibration device in a pressure altimeter? i to prevent hysteresis ii to prevent lag in a mechanical system iii to keep pilots happy during long flights iv to prevent icing v to overcome dither

i ii iv

i ii

ii iii v

i ii iii

#23. What does the white arc on a temperature scale indicate?

never exceed

maximum start and acceleration temperature

normal operating temperature

minimum temperature

#24. The rate of turn indicator is a very useful gyroscopic instrument. When used in conjunction with the Attitude Indicator it provides:

angle of bank

rate of turn about the yaw axis

rate of climb

rate of turn athwartships

#25. With the aircraft weight constant but variations in airfield altitude, take-off will always be at a constant:

equivalent airspeed

calibrated airspeed

groundspeed

true air speed

#26. An inertial reference system is aligned when turned on so as to:

calculate the computed trihedron with reference to the earth

establish true and magnetic north

establish position relative to true and magnetic north

establish magnetic north

#27. Total Air Temperature is than static air temperature and the difference varies with

warmer altitude

colder altitude

warmer CAS

colder CAS

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

a map with isogonal lines

a map with isoclinal lines

a map with isobars

a deviation card

#29. An aircraft flies into a colder airmass. This will cause the altimeter to:

over-read

under-read

read the correct altitude

the indication will depend on the hemisphere of operation

#30. A gravity-erecting device is utilised in:

an artificial horizon

a directional gyroscopic indicator

vertical speed indicator

aturn and slip

#31. The rigidity of a gyroscope can be improved by:

increasing the angular momentum and concentrating the mass on the periphery of the rotor

increasing the angular momentum and concentrating the mass at the hub of the rotor

decreasing the angular momentum and concentrating the mass on the periphery of the rotor

decreasing the angular momentum and concentrating the mass at the hub of the rotor

#32. The outputs of a flux valve are initially sent to:

an amplifier

an error detector

a compass card

a feedback loop

#33. The period of validity of an FMS data base is:

56 days

one week

28 days

varies depending on the area of operational cover

#34. An IRS differs from an INS in that it:

has a longer spin-up (is not affected by vertical accelerations due to gravity)

has a shorter spin-up time and suffers from laser lock.

does not need to correct for coriolis and central acceleration)

does not experience Schuler errors as accelerometers are strapped down and not rotated by a feedback loop

#35. In a solid state gyroscope the purpose of the dither motor is to:

enhance the acceleration of the gyro at all rotational rates

overcome laser lock

compensate for transport wander

stabilise the laser frequencies

#36. In an IRS:

the accelerometers are strapped down but the platform is gyro-stabilised

the platform is strapped down but the accelerometers are gyro-stabilised

accelerometers and gyros are both gyro-stabilised

accelerometers and gyros are both strapped down

#37. Which of the following correctly describes the gyroscope of a Rate of Turn Indicator? i 1 degree of freedom ii 2 degrees of freedom iii its frame is held by two springs iv its spin axis is parallel to the pitch axis v the spin axis is parallel to the yaw axis vi the spin axis is horizontal

i ii

i iv v

i iii v

i iii vi

#38. A blockage occurs in the ram air source and the drain-hole. The ASI in a non-pressurised aircraft will:

read a little low

read a little high

act like an altimeter

freeze at zero

#39. The errors associated with the Directional Indicator are: i earth rate ii transport wander iii banking when pitched up iv annual movement of the poles v mechanical problems

i ii iii

i ii iv v

i ii iii iv v

i ii iii v

#40. A rate integrating gyroscope is used in: i inertial attitude system ii automatic flight control systems iii inertial navigation systems iv rate of turn indicators

i ii

i iii

i iii iv

i ii iii

#41. Rate of turn is affected by: i aircraft speed ii angle of bank iii aircraft weight

i ii

i iii

ii iii

none of the above

#42. The ability of a gyroscope to indicate aircraft heading is based on it having:

one degree of freedom in the vertical axis

two degrees of freedom in the vertical axis

two degrees of freedom in the horizontal

one degree of freedom in the horizontal

#43. A Vmo/Mmo alerting system contains a barometric aneroid capsule:

which is subjected to dynamic pressure and an airspeed capsule which is subjected to static pressure

and an airspeed capsule subjected to static pressure

and an airspeed capsule subjected to dynamic pressure

which is subjected to static pressure and an airspeed capsule which is subjected to dynamic pressure

#44. When measuring different pressures (low/med/high) which of the following has the three types of sensing devices in ascending order of pressure measurement? i bourdon tube ii bellows type iii aneroid capsule

i ii iii

iii ii i

i iii ii

ii iii i

#45. Sound is propagated at a velocity which is dependent upon:

barometric pressure

density

static pressure

temperature

#46. The local speed of sound at mean sea level at ISA -10°C is:

661 kt

650 kt

673 kt

680 kt

#47. What would the compass heading be given a true heading of 247° in an area where the variation is 8°W and a compass deviation of 11°E?

255°

244°

247°

266°

#48. An aircraft is flying at flight level 350 at a CAS of 290 kt and a temperature deviation of ISA -10°C. The TAS and MN will be:

TAS 498 kt Mach 0·885

TAS 520 kt Mach 0·882

TAS 481 kt Mach 0·855

TAS 507 kt Mach 0·86

#49. An aircraft in the northern hemisphere lands and decelerates on a westerly heading. The compass will indicate:

a turn north

no turn will be indicated

an oscillation

a turn south

#50. A compass swing is used to:

align compass north with magnetic north

align compass north with true north

align magnetic north with true north

get true north and the lubber line aligned

#51. The angle formed between the directive force and the total magnetic force is called:

variation

deviation

dip

isoclinal

#52. What is the speed of sound at 30,000 ft and -40°C?

562 kt

595 kt

590 kt

661 kt

#53. If a constant CAS is maintained under normal conditions in the climb what happens to the Mach No?

it will decrease

it will remain constant

it will decrease in an isothermal layer

it will increase

#54. Regarding magnetism; which of the following statements is correct? i lines of flux run from blue pole to red pole ii like poles repel iii unlike poles repel iv like poles attract v unlike poles attract

i ii v

i iii v

ii v

i iii iv

#55. The output of a double integration N/S is:

velocity

departure

distance

longitude

#56. A solid state gyro is:

a rate gyro

a rate sensor

an earth gyro

a tied gyro

#57. The magnetic heading reference unit has a precession rate of:

1°/min

2°/min

5°/min

3°/min

#58. If the TAS at 40,000 ft is 450 kt the Mach No is:

0·815

0·783

0·76

0·825

#59. The EADI and the EHSI of an EFIS installation are also referred to by the manufacturers as:

primary display and navigation display respectively

navigation display and primary display respectively

EICAS and ECAM respectively

ECAM and EICAS respectively

#60. In which of the following modes may information from the AWR be displayed? ii expanded ILS iii map iv full nav v full ILS vi expanded nav vii full VOR viii expanded VOR ix centre map

i ii iv vii

i iii vii viii ix

ii iii vi viii ix

ii iii v vii ix

#61. Wind information can be displayed in an EFIS system in which of the following modes?

plan map expanded ILS full VOR

map centre map plan full ILS

full nav full ILS map centre map

full ILS full VOR map plan

#62. On an EADI radio altitude is displayed:

digitally between 2500 ft and 100 ft

on an analogue scale below 2500 ft

digitally between 2500 ft and 1000 ft and thereafter as an analogue/digital display

as an analogue display between 2500 ft and 1000 ft and thereafter as a digital display

#63. In FMS fitted aircraft the main interface between pilot and system will be provided by:

the automatic flight control system

the multi-purpose control and display unit

the flight control unit

the flight management source selector

#64. In the ILS mode, one dot on the lateral deviation scale on the EHSI indicates:

1 nm

2 nm

1°

2°

#65. On a standard 2-dot EHSI in the en-route mode each dot represents:

1 nm

2 nm

5 nm

10 nm

#66. Given the following information calculate the instrument error of a pre-flight altimeter check. i aerodrome elevation: 235 ft ii apron elevation: 225 ft iii height of altimeter above apron: 20 ft iv altimeter reading with QFE set: 40 ft

+20 ft

+30 ft

+40 ft

+10 ft

Dgca Question Bank For Pilots

Results

#1. A modern Radio Altimeter uses the frequency band:

#2. An aircraft that is assessed as not being a threat would be indicated on a TCAS system as:

#3. During descent through a block of airspace of constant temperature and while flying at a constant mach no will cause the CAS to:

#4. The true altitude of an aircraft in flight is shown from:

#5. On a Turn and Slip indicator, needle to the left and ball to the right indicates:

#6. What is Density Altitude?

#7. A Radio Altimeter is:

#8. Which of the following are modes of the GPWS? i excessive sink rate ii altitude loss after take-off or go-around iii excessive glideslope deviation iv high climb rate v flaps in the incorrect position vi high altitude descent vii stall

#9. An aircraft is travelling at 120 kt, what angle of bank would be required for a rate one turn?

#10. An aircraft is travelling at 100 kt forward speed on a 3° glideslope. What is its rate of descent?

#11. What correction is given by TCAS?

#12. If the Total Pressure sensor supply line leaks, and with the drain element blocked, in a nonpressurised aircraft this will cause the ASI to:

#13. Using a Classic Attitude Indicator, an aircraft performs a turn through 270° at a constant angle of bank and rate of turn. The indication is:

#14. The needle and ball of a Turn Indicator are both to the left of the datum. This indicates:

#15. Under conditions determined by the International Standard Atmosphere, at MSL True Air Speed is:

#16. In what range is GPWS operative?

#17. Which of the following are inputs to the central processing unit of the GPWS? i flaps ii landing gear iii glideslope iv unusual attitudes v radio altimeter vi VOR

#18. What is another name for fail active?

#19. Why must an autopilot be synchronised when you wish to disconnect?

#20. What is used for EGT measurement?

#21. When accelerating on a northerly heading what does the Direct Reading Magnetic Compass indicate?

#22. Why is there a vibration device in a pressure altimeter? i to prevent hysteresis ii to prevent lag in a mechanical system iii to keep pilots happy during long flights iv to prevent icing v to overcome dither

#23. What does the white arc on a temperature scale indicate?

#24. The rate of turn indicator is a very useful gyroscopic instrument. When used in conjunction with the Attitude Indicator it provides:

#25. With the aircraft weight constant but variations in airfield altitude, take-off will always be at a constant:

#26. An inertial reference system is aligned when turned on so as to:

#27. Total Air Temperature is __________ than static air temperature and the difference varies with __________

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

#29. An aircraft flies into a colder airmass. This will cause the altimeter to:

#30. A gravity-erecting device is utilised in:

#31. The rigidity of a gyroscope can be improved by:

#32. The outputs of a flux valve are initially sent to:

#33. The period of validity of an FMS data base is:

#34. An IRS differs from an INS in that it:

#35. In a solid state gyroscope the purpose of the dither motor is to:

#36. In an IRS:

#37. Which of the following correctly describes the gyroscope of a Rate of Turn Indicator? i 1 degree of freedom ii 2 degrees of freedom iii its frame is held by two springs iv its spin axis is parallel to the pitch axis v the spin axis is parallel to the yaw axis vi the spin axis is horizontal

#38. A blockage occurs in the ram air source and the drain-hole. The ASI in a non-pressurised aircraft will:

#39. The errors associated with the Directional Indicator are: i earth rate ii transport wander iii banking when pitched up iv annual movement of the poles v mechanical problems

#40. A rate integrating gyroscope is used in: i inertial attitude system ii automatic flight control systems iii inertial navigation systems iv rate of turn indicators

#41. Rate of turn is affected by: i aircraft speed ii angle of bank iii aircraft weight

#42. The ability of a gyroscope to indicate aircraft heading is based on it having:

#43. A Vmo/Mmo alerting system contains a barometric aneroid capsule:

#44. When measuring different pressures (low/med/high) which of the following has the three types of sensing devices in ascending order of pressure measurement? i bourdon tube ii bellows type iii aneroid capsule

#45. Sound is propagated at a velocity which is dependent upon:

#46. The local speed of sound at mean sea level at ISA -10°C is:

#47. What would the compass heading be given a true heading of 247° in an area where the variation is 8°W and a compass deviation of 11°E?

#48. An aircraft is flying at flight level 350 at a CAS of 290 kt and a temperature deviation of ISA -10°C. The TAS and MN will be:

#49. An aircraft in the northern hemisphere lands and decelerates on a westerly heading. The compass will indicate:

#50. A compass swing is used to:

#51. The angle formed between the directive force and the total magnetic force is called:

#52. What is the speed of sound at 30,000 ft and -40°C?

#53. If a constant CAS is maintained under normal conditions in the climb what happens to the Mach No?

#54. Regarding magnetism; which of the following statements is correct? i lines of flux run from blue pole to red pole ii like poles repel iii unlike poles repel iv like poles attract v unlike poles attract

#55. The output of a double integration N/S is:

#56. A solid state gyro is:

#57. The magnetic heading reference unit has a precession rate of:

#58. If the TAS at 40,000 ft is 450 kt the Mach No is:

#59. The EADI and the EHSI of an EFIS installation are also referred to by the manufacturers as:

#60. In which of the following modes may information from the AWR be displayed? ii expanded ILS iii map iv full nav v full ILS vi expanded nav vii full VOR viii expanded VOR ix centre map

#61. Wind information can be displayed in an EFIS system in which of the following modes?

#62. On an EADI radio altitude is displayed:

#63. In FMS fitted aircraft the main interface between pilot and system will be provided by:

#64. In the ILS mode, one dot on the lateral deviation scale on the EHSI indicates:

#65. On a standard 2-dot EHSI in the en-route mode each dot represents:

#66. Given the following information calculate the instrument error of a pre-flight altimeter check. i aerodrome elevation: 235 ft ii apron elevation: 225 ft iii height of altimeter above apron: 20 ft iv altimeter reading with QFE set: 40 ft

#27. Total Air Temperature is than static air temperature and the difference varies with