GYROSCOPE – Air – DGCA Question Bank For Politics

#1. The building principle of a gyroscope, the best efficiency is obtained through the concentration of the mass?

Close to the axis and with a low rotation speed.

On the periphery and with a high rotation speed.

Close to the axis and with a high rotation speed.

On the periphery and with a low rotation speed.

#2. A Standby horizon or emergency attitude indicator?

Only works of there is a complete electrical failure.

Contains its own separate gyro.

Is automatically connected to the primary vertical gyro if the alternator fails.

Is fully independent of external energy resources in an emergency situation.

#3. The basis properties of a gyroscope are? 1.The gyro's weight. 2.The rigidity in space. 3.The inertia.4. The high RPM. 5. The precession The combination of correct statements is?

3, 4.

2, 5.

2, 3, 5.

1, 3, 5.

#4. The indications of the directional gyro when used as an on-board instrument are valid only for a short period of time. The causes of this inaccuracy are? 1. The earth's rotation. 2. The longitudinal acceleration. 3. The aircraft's motion over the surface of the earth. 4. The mechanical defects of the gyro. 5. The gimbal mount of the gyro rings. The combination of correct statements is?

1, 3, 4.

1, 2, 3, 4, 5, 6.

2, 5, 6.

1, 3, 4, 6.

#5. The charcteristics of he directional gyro (DG) used in a gyro stabilised compass system are?

One degree of fredom, whose vertical axis, aligned with the real vertical to the location is maintained in this direction by an automatic erecting system.

Two degress of freedom, whose horizontal axis corresponding to the reference direction is maintained in the horizontal plane by an automatic erecting system.

Two degress of freedom, whose axis aligned with the vertical to the location is maintained in this direction by an erecting system.

One degree of freedom, whose horizontal axis is maintained in the horizontal plane by an automatic erecting system.

#6. A gravity type erector is used in a vertical gyro device to correct errors on?

An artificial horizon

A directional gyro unit.

A turn indicator.

A gyro-magnetic indicator.

#7. When an aircraft has turned 360 degrees with a constant attitude and bank, the pilot observes the following on a classic artificial horizon?

Too much nose-up and bank correct.

Too much nose-up and bank too high.

Attitude and bank correct.

Too much nose-up and bank too low.

#8. When an aircraft has turned 270 degrees with a constant attitude and bank, the pilot observes the following on a classic artificial horizon?

Too much nose-up and bank too high.

Too much nose-up and bank too low.

Attitude and bank correct.

Too much nose-up and bank correct.

#9. Note: in this question, the degrees of freedom of a gyro are determined by the number of gimbal rings it comprises. Among the flight control instruments, the artificial horizon plays an essential part. It uses a gyroscope with?

Two degrees of freedom, whose axis is oriented and continuously maintained to local vertical by an automatic erecting system.

Two degrees of freedom, whose horizontal axis corresponding to a reference direction is maintained in a horizontal plane by an automatic erecting system.

One degree of freedom, whose horizontal axis is maintained in a horizontal plane by an automatic erecting system.

One degree of freedom, whose vertical axis oriented in the direction of the real vertical to the location is maintained in this direction by an automatic erecting system.

#10. A slaved directional gyro derives it's directional signal from?

A direct reading magnetic compass.

The flight director.

The flux valve.

The air-data-computer.

#11. A turn indicator is built around a gyroscope with?

1 degree of freedom.

3 degrees of freedom.

2 degrees of freedom.

0 degree of freedom.

#12. The diagram below shows three gyro assemblies: A, B and C. Among these gyros, One is a roll gyro (noted 1). One is a pitch gyro (noted 2). One is a yaw gyro (noted 3) The correct matching of gyros and assemblies is?

1C, 2A, 3B.

1B, 2A, 3C.

1A, 2B, 3C.

1B, 2C, 3A.

#13. The indications on a directional gyroscope or gyrocompass are subject to errors, due to: 1. Rotation of Earth, 2. Aeroplane motion on Earth. 3. Lateral and transversal aeroplane bank angles. 4. North change. 5. Mechanical defects. Chose the combination with true statements only?

2, 3, 5.

1, 2, 3, 5.

3, 4, 5.

1, 2, 4, 5.

#14. At a low bank angle, the measurement of rate-of-turn actually consists in measuring the?

Angular velocity of the aircraft.

Yaw rate of the aircraft.

Pitch rate of the aircraft.

Roll rate of the aircraft.

#15. An airborne instrument, equipped with a gyro with 2 degrees of freedom and a horizontal spin axis is?

An artificial horizon.

A turn indicator.

A fluxgate compass.

A directional gyro.

#16. When, in flight, the needle of a needle and ball indicator is on the left and the ball on the right, the aircraft is?

Turning left with too much bank.

Turning right with not enough bank.

Turning right with too much bank.

Turning left with not enough bank.

#17. When, in flight, the needle of a needle and ball indicator is on the right and the ball on the left, the aircraft is?

Turning left with too much bank.

Turning right with not enough bank.

Turning right with too much bank.

Turning left with not enough bank.

#18. When, in flight, the needle and ball of a needle and ball indicator are on the right, the aircraft is?

Turning left with too much bank.

Turning left with not enough bank.

Turning right with too much bank.

Turning right with not enough bank.

#19. When, in flight, the needle and ball of a needle-and-ball indicator are on the left, the aircraft is?

Turning right with too much bank.

Turning right with not enough bank.

Turning left with too much bank.

Turning left with not enough bank.

#20. On the ground, during a left turn, the turn indicator indicates?

Needle to the left ball to the left.

Needle in the middle, ball to the righ.

Needle in the middle, ball to the left.

Needle to the left, ball to the right.

#21. The rate-of -turn is the?

Pitch rate in a turn.

Change-of-heading rate of the aircraft.

Yaw rate in a turn aircraft.

Speed in a turn.

#22. In a Turn-indicator, the measurement of rate of turn consists for?

High bank angles, in measuring the yaw rate.

High bank angles, in measuring the roll rate.

Low bank angles, in measuring the yaw rate.

Low bank angles, in measuring the roll rate.

#23. In a turn at constant rate, the turn indicator reading is?

Proportional to the aircraft true airspeed.

Independent to the aircraft true airspeed.

Proportional to the aircraft weight.

Inversely proportional to the aircraft true airspeed.

#24. An airborne Instrument, equipped with a gyro with 2 degrees of freedom and a horizontal spin axis is?

A directional gyro.

An artificial horizon.

A turn indicator.

A flux gate compass.

#25. An airborne Instrument, equipped with a gyro with 1 degree of freedom and a horizontal spin axis is a?

Fluxgate compass.

Directional gyro.

Turn indicator.

Gyro-magnetic compass.

#26. The vertical reference unit of a three-axis data generator is equipped with a gyro with?

1 degree of freedom and horizontal spin axis.

1 degree of freedom and vertical spin axis.

2 degrees of freedom and vertical spin axis.

2 degrees of freedom and horizontal spin axis.

#27. When an aircraft has turned 90 degrees with a constant attitude and bank, the pilot observes the following on a classic artificial horizon?

Too much nose-up and bank correct.

Too much nose-up and bank too high.

Too much nose-up and bank too low.

Attitude and bank correct.

#28. On the ground, during a right turn, the turn indicator indicates?

Needle in the middle, ball to left.

Needle to the right, ball to left.

Needle to the right, ball to right

Needle in the middle, ball to right.

#29. The heading reference unit of a three-axis data generator is equipped with a gyro with?

2 degrees of freedom and horizontal spin axis.

2 degrees of freedom and vertical spin axis.

1 degree of freedom and horizontal spin axis.

1 degree of freedom and vertical spin axis.

#30. Following 180° stabilized turn with a constant attitude and bank, the artificial horizon indicates?

Too high pitch-up and too low banking.

Too high pitch-up and correct baning.

Attitude and banking correct.

Too high pitch up and too high banking.

#31. The gyro-magnetic compass torque motor?

Causes the directional gyro unit to precess.

Causes the heading indicator to precess.

Feeds the error detector system.

Is fed by the flux value.

#32. The heading information originating from the gyro-magnetic compass flux value is sent to the?

Error detector.

Erector system.

Heading indicator.

Amplifler.

#33. The input signal of the amplifier of the gyro-magnetic compass resetting device originates from the?

Directional gyro erection device.

Error deterctor.

Flux value.

Directional gyro unit.

#34. A rate integrating gyro is a detecting element used in? 1. An inertial attitude unit. 2. An automatic pilot. 3. A stabilizing servo system. 4. An inertial navigation system. 5. A rate-of-turn indicator. The combination of correct statements is?

1, 4.

1, 2, 3, 4, 5.

2, 3, 5.

2, 3, 4.

#35. Under normal operating conditions, when an aircraft is in a banked turn, the rate-of-turn Indicator is a valuable gyroscopic flight control instrument ; when it is associated with an attitude indicator it indicates? 1. The angular velocity of the aircraft about the yaw axis. 2. The bank of the aircraft. 3. The direction of the aircraft turn. 4. The angular velocity of the aircraft about the real vertical. The combination of correct statements is?

3, 4.

2, 4.

1, 3.

1, 2.

#36. The gimbal error of the directional gyro is due to the effect of?

A bank or pitch attitude of the aircraft.

An apparent weight ad an apparent vertical.

Too slow precession on the horizontal gimbal ring.

The aircraft's track over the earth.

#37. The pendulum type detector system of the directional gyro feeds?

A torque motor on the sensitive axis.

2 torque motors arranged horizontally.

A leveling erection torque motor.

A nozzle integral with the outer gimbal ring.

#38. The directional gyro axis spins about the local vertical by 15°/hour?

In the latitude 30°.

In the latitude 45°.

On the equator.

On the North pole.

#39. Compared with a conventional gyro, a laser gyro?

Consumes a lot of power.

Has a longer life cycle.

Is influenced by temperature.

Has a fairly long starting cycle.

#40. The diagram representing a left turn with insufficient rudder is?

2.

3.

4.

1

#41. A turn indicator is an instrument which indicates rate of turn. Rate of turn depends upon: 1.Bank angle. 2. Aeroplane speed. 3. Aeroplane weight. The combination regrouping the correct statements is?

1, 2, and 3.

1 and 2.

1 and 3.

2 and 3.

#42. During an acceleration phase at constant attitude, the resetting principle of the artificial horizon results in the horizon bar indicating a?

Nose-down attitude.

Constant attitude.

Nose-down followed by a nose-up attitude.

Nose-up attitude.

#43. Heading information given by a gyro platform, is given by a gyro at?

2 degrees-of-freedom in the vertical axis.

1 degree-of-freedom in the horizontal axis.

1 degree-of-freedom in the vertical axis.

2 degrees-of-freedom in the horizontal axis.

#44. Among the systematic errors of the "directional gyro", the error due to the earth rotation make the north reference turn in the horizontal plane. At a mean latitude of 45°N, this reference turns by?

15°/hour to the right.

7.5°/hour to the right.

7.5°/hour to the left.

10.5°/hour to the right.

#45. The diagram which shows a 40° left bank and 15° nose down attitude is?

1

2

5

3

#46. The heading read on the dial of a directional gyro is subject to errors, one of which is due to the movement of the aircraft. This error?

Is at its greatest value when the aircraft follows a meridional track.

Shows itself by an apparent rotation of the horizontal axis of the gyroscope which seems to turn at 15° per hour to the right in the northern hemisphere.

Is dependent on the ground speed of the aircraft, its true track and the average latitude of the flight.

Is, in spite of this, insignificant and may be neglected.

#47. A gravity erector system is used to correct the errors on?

Artificial horizon.

A directional gyro.

A turn indicator.

A gyro-magnetic compass.

#48. The maximum directional gyro error due to the earth rotation is?

180°/hour.

5°/hour.

15°/hour.

90°/hour.

#49. . A directional gyro is? 1. A gyroscope free around two axis. 2. A gyroscope free around one axis. 3. Capable of self-orientation around an earth-tied direction. 4. Incapable of self-orientation around an earth-tied direction. The combination which regroups all of the correct statements is?

1, 4.

2, 4.

2, 3.

1, 3.

#50. For an aircraft flying a true track of 390° between the 005°S and 005°N parallels, the precession error of the directional gyro due to apparent drift is equal to?

Depends only on the aircraft's ground speed.

0°/hour.

+5°/hour.

#51. What is the maximum gyro drift rate that can be caused by earth rotation?

5°per hour.

15°per hour.

20° per hour.

90° per hour.

#52. A DGI has degrees of freedom and a _ spin axis?

1 vertical.

2 horizontal.

3 horizontal.

2 vertical

#53. Which instrument uses a vertical gyroscope fitted with a gravity erection device?

Artificial horizon.

DGI.

Turn indicator.

Rate gyro.

#54. Integrating gyroscopes are used? 1. Attitude indicators. 2. Inertial attitude units. 3. Rate of turn indicators. 4. Inertial navigation platforms. 5. Autopilots.

3 and 4.

4 and 5.

2, 3, and 5.

2 and 4.

#55. How many degrees of freedom and what spin axis will a two axis gyro measuring vertical changes use?

2 Vertical.

2 Lateral.

2 Longitudinal.

1 Vertical.

#56. . The properties that are peculiar to a gyroscope are? 1. Inertia. 2. Precession. 3. Rigidity. 4. Angular momentum.

1 and 2.

2 and 4.

2, 3, and 4

2 and 3.

#57. Rigidity Increases with?

Increasing RPM, and concentrating mass close to the centre.

Increasing RPM and concentrating mass at the periphery.

Decreasing RPM and radius.

Increasing RPM and spin axis length.

#58. A gravity erection device would be used on?

VSI.

DGI.

Artificial horizon.

Turn and slip Indicator.

#59. The yaw damper system, uses a __ gyro and produces rudder Inputs proportional to_?

Horizontal rate yaw rate.

Vertical rate yaw and roll.

Horizontal displacement yaw rate.

Vertical displacement roll rate.

#60. To obtain heading information a gyro-stabilised platform requires?

A horizontal axis and one degree of freedom.

A vertical axis and two degrees of freedom.

A lateral axis and two degrees of freedom.

A vertical axis and one degree of freedom.

#61. What will be the appartent wander on gyroscope when flying on a northeriy track from 05°S to 05° N.

10° per hour.

15° per hour.

Zero.

120° per hour.

#62. The number of degrees of freedom of a gyro is?

One more than the number of gimbals.

The same as the number of gimbals.

One less than the number of gimbals.

Not related to the number of gimbals.

#63. A directional gyro requires?

One gimbal, one degree of freedom and horizontal spin axis.

Two gimabls, two degrees of freedom and a horizontal spin axis.

Three gimbals, three degrees of freedom and a lateral spin axis.

One gimbal, one degree of freedom and a vertical spin axis.

#64. What type of gyro has a horizontal spin axis and one degree of freedom?

Rate gyro.

Displacement gyro.

Rate integrating gyro.

Space tyro.

#65. The properties of a gyro are? 1. Mass. 2. Rigidity in space. 3. Inertia. 4. Precession . 5. Rigidity with reference to the earth.

1, 2, 3, 4.

1, 3, 4, 5.

1, 2, 3, 5.

2, 3, 4, 5.

#66. Gyro rigidity improves with?

Increasing RPM, mass and radial displacement of mass.

Increasing RPM and mass but decreasing radial displacement of mass.

Decreasing RP but increasing mass and radial displacement o mass.

Decreasing RPM and mass but increasing radial displacement of mass.

#67. The dither motor in a ring laser gyroscope?

Stabilises the frequency or the laser source.

Prevents laser lock.

Prevents or minimises transport wander.

#68. When viewed from above a gyro is seen to rotate on a vertical spin axis, as illustrated in the diagram. if a force tends to push the right side downwards?

It will tilt upwards at the front.

It will tilt upwards at the left.

It will tilt upwards at the right.

It will tilt upwards at the back.

#69. A 2 axis gyro measuring vertical changes will have? 1. One degree of freedom. 2. Two degrees of freedom. 3. Vertical axis. 4. Horizontal axis.

1, 3.

1, 4.

2, 3.

2, 4.

#70. The properties unique to a gyro include? 1.Mass. 2.Inertia. 3.Rigidity. 4. Precession. 5. Rotational velocity.

1, 2.

2, 3.

3, 4.

All of the above.

#71. The gyro in DGI has. 1. One degree of freedom. 2. Two degrees of freedom. 3. Vertical axis. 4. Horizontal axis.

1, 3.

1, 4.

2, 3.

2, 4.

#72. The gyro in a vertical reference data generator has? 1. One degrees of freedom. 2. Two degrees of freedom. 3. Vertical axis. 4. Horizontal axis.

1, 3.

1, 4.

2, 3.

2, 4.

#73. The purpose of the torque motor in a gyro stabilised magnetic compass is to?

Move the selsyn stator or calibrate the compass.

Remove flux valve errors.

Preccess the directional gyro.

Align the heading pointer with true heading prior to flight.

#74. Where would a rate integrating gyro be used? 1. Rate of turn indicator. 2. Autopilot. 3.Inertial navigation unit. 4.Inertial attitude reference unit. 5.As a stabiliser for an instrumer inertial platform.

1, 2.

2, 3.

3, 4.

4, 5.

#75. DGI errors are caused by 1. Mechnical imperfections. 2. Earth rate. 3. Transport wander. 4. Banking when pitching. 5. Annual migration of the poles.

All of the above.

1, 2, 3, 4.

2, 3, 4, 5.

3, 4, 5.

#76. To Indicate true heading, the gyros in a gyro stabilised platform require? 1. One degree of freedom. 2. Two degrees of freedom. 3. Vertical axis. 4. Horizontal axis.

1, 3.

1, 4.

2, 3.

2, 4.

#77. A gravity erector system is used to correct errors in?

A ROT Indicator.

A DGI.

An artificial horizon.

An inertial platform.

#78. What error is caused by movement of the gyro relative to the earth in a DGI?

Transport wander.

Earth rate.

Real wander.

Longitude latitude error.

#79. The gyro in an artificial horizon requires.1. One degree of freedom. 2.Two degrees of freedom. 3. Vertical axis. 4. Horizontal axis.

1, 3.

1, 4.

2, 3.

2, 4.

#80. Gyroscope rigidity is increased by _ RPM and concentrating the mass at the ___ of the rotor?

Increasing hub.

Increasing rim.

Decreasing hub.

Decreasing rim.

#81. Which instrument employs a gravity erecting device on its gyro?

ASI.

Directional gyro unit.

Turn indicator.

Artificial horizon.

#82. A gyro with one degree of freedom is used in a?

Slaved gyro compass.

Directional gyro unit.

Turn indicator.

Artificial horizon.

#83. Transport wander when flying east at 400 Kts at 45 degrees north is?

5.67° per hour.

6.67° per hour.

7.67° per hour.

8.67° per hour.

#84. Transport wander when flying east at 300 Kts at 40 degrees south is?

-4.2° per hour.

-5.2° per hour.

6.2° per hour.

7.2° per hour.

#85. Transport wander when flying west at 300 Kts at 25 degrees south is?

-2.33° per hour.

-3.34° per hour.

2.33° per hour.

3.34° per hour.

#86. Transport wander when flying west at 300 Kts at 25 degrees north is?

2.33° per hour.

3.34° per hour.

-2.33° per hour.

-3.34° per hour.

#87. Earth rate at 25 degrees south is?

13.59° per hour.

6.34° per hour.

-13.59° per hour.

-6.34° per hour.

#88. Earth rate at 45 degrees north is?

-13.59° per hour.

-10.61° per hour.

13.59° per hour.

10.61° per hour.

#89. Earth rate at 45 degrees north is?°

Zero.

15° per hour.

-15° per hour.

6.34° per hour.

Dgca Question Bank For Pilots

Results

#1. The building principle of a gyroscope, the best efficiency is obtained through the concentration of the mass?

#2. A Standby horizon or emergency attitude indicator?

#3. The basis properties of a gyroscope are? 1.The gyro's weight. 2.The rigidity in space. 3.The inertia.4. The high RPM. 5. The precession The combination of correct statements is?

#5. The charcteristics of he directional gyro (DG) used in a gyro stabilised compass system are?

#6. A gravity type erector is used in a vertical gyro device to correct errors on?

#7. When an aircraft has turned 360 degrees with a constant attitude and bank, the pilot observes the following on a classic artificial horizon?

#8. When an aircraft has turned 270 degrees with a constant attitude and bank, the pilot observes the following on a classic artificial horizon?

#9. Note: in this question, the degrees of freedom of a gyro are determined by the number of gimbal rings it comprises. Among the flight control instruments, the artificial horizon plays an essential part. It uses a gyroscope with?

#10. A slaved directional gyro derives it's directional signal from?

#11. A turn indicator is built around a gyroscope with?

#12. The diagram below shows three gyro assemblies: A, B and C. Among these gyros, One is a roll gyro (noted 1). One is a pitch gyro (noted 2). One is a yaw gyro (noted 3) The correct matching of gyros and assemblies is?

#13. The indications on a directional gyroscope or gyrocompass are subject to errors, due to: 1. Rotation of Earth, 2. Aeroplane motion on Earth. 3. Lateral and transversal aeroplane bank angles. 4. North change. 5. Mechanical defects. Chose the combination with true statements only?

#14. At a low bank angle, the measurement of rate-of-turn actually consists in measuring the?

#15. An airborne instrument, equipped with a gyro with 2 degrees of freedom and a horizontal spin axis is?

#16. When, in flight, the needle of a needle and ball indicator is on the left and the ball on the right, the aircraft is?

#17. When, in flight, the needle of a needle and ball indicator is on the right and the ball on the left, the aircraft is?

#18. When, in flight, the needle and ball of a needle and ball indicator are on the right, the aircraft is?

#19. When, in flight, the needle and ball of a needle-and-ball indicator are on the left, the aircraft is?

#20. On the ground, during a left turn, the turn indicator indicates?

#21. The rate-of -turn is the?

#22. In a Turn-indicator, the measurement of rate of turn consists for?

#23. In a turn at constant rate, the turn indicator reading is?

#24. An airborne Instrument, equipped with a gyro with 2 degrees of freedom and a horizontal spin axis is?

#25. An airborne Instrument, equipped with a gyro with 1 degree of freedom and a horizontal spin axis is a?

#26. The vertical reference unit of a three-axis data generator is equipped with a gyro with?

#27. When an aircraft has turned 90 degrees with a constant attitude and bank, the pilot observes the following on a classic artificial horizon?

#28. On the ground, during a right turn, the turn indicator indicates?

#29. The heading reference unit of a three-axis data generator is equipped with a gyro with?

#30. Following 180° stabilized turn with a constant attitude and bank, the artificial horizon indicates?

#31. The gyro-magnetic compass torque motor?

#32. The heading information originating from the gyro-magnetic compass flux value is sent to the?

#33. The input signal of the amplifier of the gyro-magnetic compass resetting device originates from the?

#34. A rate integrating gyro is a detecting element used in? 1. An inertial attitude unit. 2. An automatic pilot. 3. A stabilizing servo system. 4. An inertial navigation system. 5. A rate-of-turn indicator. The combination of correct statements is?

#36. The gimbal error of the directional gyro is due to the effect of?

#37. The pendulum type detector system of the directional gyro feeds?

#38. The directional gyro axis spins about the local vertical by 15°/hour?

#39. Compared with a conventional gyro, a laser gyro?

#40. The diagram representing a left turn with insufficient rudder is?

#41. A turn indicator is an instrument which indicates rate of turn. Rate of turn depends upon: 1.Bank angle. 2. Aeroplane speed. 3. Aeroplane weight. The combination regrouping the correct statements is?

#42. During an acceleration phase at constant attitude, the resetting principle of the artificial horizon results in the horizon bar indicating a?

#43. Heading information given by a gyro platform, is given by a gyro at?

#44. Among the systematic errors of the "directional gyro", the error due to the earth rotation make the north reference turn in the horizontal plane. At a mean latitude of 45°N, this reference turns by?

#45. The diagram which shows a 40° left bank and 15° nose down attitude is?

#46. The heading read on the dial of a directional gyro is subject to errors, one of which is due to the movement of the aircraft. This error?

#47. A gravity erector system is used to correct the errors on?

#48. The maximum directional gyro error due to the earth rotation is?

#49. . A directional gyro is? 1. A gyroscope free around two axis. 2. A gyroscope free around one axis. 3. Capable of self-orientation around an earth-tied direction. 4. Incapable of self-orientation around an earth-tied direction. The combination which regroups all of the correct statements is?

#50. For an aircraft flying a true track of 390° between the 005°S and 005°N parallels, the precession error of the directional gyro due to apparent drift is equal to?

#51. What is the maximum gyro drift rate that can be caused by earth rotation?

#52. A DGI has ______ degrees of freedom and a _______ spin axis?

#53. Which instrument uses a vertical gyroscope fitted with a gravity erection device?

#54. Integrating gyroscopes are used? 1. Attitude indicators. 2. Inertial attitude units. 3. Rate of turn indicators. 4. Inertial navigation platforms. 5. Autopilots.

#55. How many degrees of freedom and what spin axis will a two axis gyro measuring vertical changes use?

#56. . The properties that are peculiar to a gyroscope are? 1. Inertia. 2. Precession. 3. Rigidity. 4. Angular momentum.

#57. Rigidity Increases with?

#58. A gravity erection device would be used on?

#59. The yaw damper system, uses a __________ gyro and produces rudder Inputs proportional to_________?

#60. To obtain heading information a gyro-stabilised platform requires?

#61. What will be the appartent wander on gyroscope when flying on a northeriy track from 05°S to 05° N.

#62. The number of degrees of freedom of a gyro is?

#63. A directional gyro requires?

#64. What type of gyro has a horizontal spin axis and one degree of freedom?

#65. The properties of a gyro are? 1. Mass. 2. Rigidity in space. 3. Inertia. 4. Precession . 5. Rigidity with reference to the earth.

#66. Gyro rigidity improves with?

#67. The dither motor in a ring laser gyroscope?

#68. When viewed from above a gyro is seen to rotate on a vertical spin axis, as illustrated in the diagram. if a force tends to push the right side downwards?

#69. A 2 axis gyro measuring vertical changes will have? 1. One degree of freedom. 2. Two degrees of freedom. 3. Vertical axis. 4. Horizontal axis.

#70. The properties unique to a gyro include? 1.Mass. 2.Inertia. 3.Rigidity. 4. Precession. 5. Rotational velocity.

#71. The gyro in DGI has. 1. One degree of freedom. 2. Two degrees of freedom. 3. Vertical axis. 4. Horizontal axis.

#72. The gyro in a vertical reference data generator has? 1. One degrees of freedom. 2. Two degrees of freedom. 3. Vertical axis. 4. Horizontal axis.

#73. The purpose of the torque motor in a gyro stabilised magnetic compass is to?

#74. Where would a rate integrating gyro be used? 1. Rate of turn indicator. 2. Autopilot. 3.Inertial navigation unit. 4.Inertial attitude reference unit. 5.As a stabiliser for an instrumer inertial platform.

#75. DGI errors are caused by 1. Mechnical imperfections. 2. Earth rate. 3. Transport wander. 4. Banking when pitching. 5. Annual migration of the poles.

#76. To Indicate true heading, the gyros in a gyro stabilised platform require? 1. One degree of freedom. 2. Two degrees of freedom. 3. Vertical axis. 4. Horizontal axis.

#77. A gravity erector system is used to correct errors in?

#78. What error is caused by movement of the gyro relative to the earth in a DGI?

#79. The gyro in an artificial horizon requires.1. One degree of freedom. 2.Two degrees of freedom. 3. Vertical axis. 4. Horizontal axis.

#80. Gyroscope rigidity is increased by _______ RPM and concentrating the mass at the _________ of the rotor?

#52. A DGI has degrees of freedom and a _ spin axis?

#59. The yaw damper system, uses a __ gyro and produces rudder Inputs proportional to_?

#80. Gyroscope rigidity is increased by _ RPM and concentrating the mass at the ___ of the rotor?