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CPL Test Series
Question Bank
Questions for KW GYRO SCOPE
Answer the following questions
Test Mode
Training Mode
1. 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.
One degree of freedom, whose horizontal axis 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.
2. 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
2, 4.
2, 3.
1, 4.
1, 3.
3. An airborne instrument, equipped with a gyro with 2 degrees of freedom and a horizontal spin axis is?
A directional gyro.
A fluxgate compass.
An artificial horizon.
A turn indicator.
4. The gyro in DGI has. 1. One degree of freedom. 2. Two degrees of freedom. 3. Vertical axis. 4. Horizontal axis
1, 4.
1, 3.
2, 4.
2, 3.
5. 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 too high.
Too much nose-up and bank too low.
Too much nose-up and bank correct.
Attitude and bank correct.
6. Transport wander when flying west at 300 Kts at 25 degrees north is?
-3.34° per hour.
2.33° per hour.
3.34° per hour.
-2.33° per hour.
7. The maximum directional gyro error due to the earth rotation is?
15°/hour.
180°/hour.
5°/hour.
90°/hour.
8. Which instrument uses a vertical gyroscope fitted with a gravity erection device?
Artificial horizon.
DGI
Turn indicator.
Rate gyro.
9. Gyroscope rigidity is increased by _______ RPM and concentrating the mass at the _________ of the rotor?
Increasing rim.
Decreasing rim.
Increasing hub.
Decreasing hub.
10. A gravity type erector is used in a vertical gyro device to correct errors on?
A turn indicator.
A directional gyro unit.
An artificial horizon
A gyro-magnetic indicator.
11. Earth rate at 45 degrees north is?
15° per hour.
-15° per hour.
6.34° per hour.
Zero.
12.
The diagram which shows a 40° left bank and 15° nose down attitude is?
1.
3.
2.
4.
13. A gravity erector system is used to correct errors in?
A ROT Indicator.
An inertial platform.
A DGI.
An artificial horizon.
14. The input signal of the amplifier of the gyro-magnetic compass resetting device originates from the?
Flux value.
Error deterctor.
Directional gyro erection device.
Directional gyro unit.
15. On the ground, during a left turn, the turn indicator indicates?
Needle in the middle, ball to the righ.
Needle in the middle, ball to the left.
Needle to the left, ball to the right.
Needle to the left ball to the left.
16. What will be the appartent wander on gyroscope when flying on a northeriy track from 05°S to 05° N.
120° per hour.
15° per hour.
10° per hour.
Zero.
17. A directional gyro requires?
One gimbal, one degree of freedom and 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.
Two gimabls, two degrees of freedom and a horizontal spin axis.
18. 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.
2, 3, 4, 5.
1, 3, 4, 5.
1, 2, 3, 5.
19. The heading information originating from the gyro-magnetic compass flux value is sent to the?
Error detector.
Amplifler.
Erector system.
Heading indicator.
20. Integrating gyroscopes are used? 1. Attitude indicators. 2. Inertial attitude units. 3. Rate of turn indicators. 4. Inertial navigation platforms. 5. Autopilots.
2 and 4.
3 and 4.
2, 3, and 5.
4 and 5.
21. The properties that are peculiar to a gyroscope are? 1. Inertia. 2. Precession. 3. Rigidity. 4. Angular momentum
2, 3, and 4
2 and 4.
1 and 2.
2 and 3.
22. The gyro-magnetic compass torque motor?
Feeds the error detector system.
Causes the directional gyro unit to precess.
Causes the heading indicator to precess.
Is fed by the flux value.
23. A turn indicator is built around a gyroscope with?
2 degrees of freedom.
0 degree of freedom.
3 degrees of freedom.
1 degree of freedom.
24. 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, in spite of this, insignificant and may be neglected.
Is dependent on the ground speed of the aircraft, its true track and the average latitude of the flight.
25. The gyro in an artificial horizon requires.1. One degree of freedom. 2.Two degrees of freedom. 3. Vertical axis. 4. Horizontal axis
2, 4.
2, 3.
1, 4.
1, 3.
26. The rate-of -turn is the?
Change-of-heading rate of the aircraft.
Speed in a turn.
Yaw rate in a turn aircraft.
Pitch rate in a turn.
27. The pendulum type detector system of the directional gyro feeds?
A leveling erection torque motor.
2 torque motors arranged horizontally.
A nozzle integral with the outer gimbal ring.
A torque motor on the sensitive axis.
28. Transport wander when flying east at 400 Kts at 45 degrees north is?
8.67° per hour.
7.67° per hour.
6.67° per hour.
5.67° per hour.
29. Transport wander when flying west at 300 Kts at 25 degrees south is?
-2.33° per hour.
2.33° per hour.
-3.34° per hour.
3.34° per hour.
30. On the ground, during a right turn, the turn indicator indicates?
Needle to the right, ball to right
Needle in the middle, ball to right.
Needle to the right, ball to left.
Needle in the middle, ball to left.
31. 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, 2, 3, 4, 5.
2, 3, 5.
1, 4.
2, 3, 4.
32. What is the maximum gyro drift rate that can be caused by earth rotation?
15°per hour.
5°per hour.
90° per hour.
20° per hour.
33. What type of gyro has a horizontal spin axis and one degree of freedom?
Displacement gyro.
Rate gyro.
Space tyro.
Rate integrating gyro.
34. 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 not enough bank.
Turning left with too much bank.
Turning right with too much bank.
Turning right with not enough bank.
35. Earth rate at 45 degrees north is?
13.59° per hour.
10.61° per hour.
-10.61° per hour.
-13.59° per hour.
36. Transport wander when flying east at 300 Kts at 40 degrees south is?
7.2° per hour.
-4.2° per hour.
-5.2° per hour.
6.2° per hour.
37. The heading 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.
38. The gimbal error of the directional gyro is due to the effect of?
Too slow precession on the horizontal gimbal ring.
The aircraft's track over the earth.
An apparent weight ad an apparent vertical.
A bank or pitch attitude of the aircraft.
39. When, in flight, the needle and ball of a needle and ball indicator are on the right, the aircraft is?
Turning right with too much bank.
Turning right with not enough bank.
Turning left with not enough bank.
Turning left with too much bank.
40.
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?
1B, 2C, 3A.
1A, 2B, 3C.
1C, 2A, 3B.
1B, 2A, 3C.
41. 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 too high.
Attitude and bank correct.
Too much nose-up and bank correct.
Too much nose-up and bank too low.
42. 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?
-5°/hour.
+5°/hour.
Depends only on the aircraft's ground speed.
0°/hour.
43. A gyro with one degree of freedom is used in a?
Artificial horizon.
Directional gyro unit.
Slaved gyro compass.
Turn indicator.
44. 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.
2, 4.
2, 3.
1, 4.
1, 3.
45. The yaw damper system, uses a __________ gyro and produces rudder Inputs proportional to_________?
Horizontal displacement yaw rate.
Horizontal rate yaw rate.
Vertical rate yaw and roll.
Vertical displacement roll rate.
46. Which instrument employs a gravity erecting device on its gyro?
ASI.
Directional gyro unit.
Turn indicator.
Artificial horizon.
47. 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, 2, 3, 4, 5, 6.
1, 3, 4, 6.
1, 3, 4.
2, 5, 6.
48. 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?
1, 2, 3, 5.
1, 2, 4, 5.
3, 4, 5.
2, 3, 5.
49. An airborne Instrument, equipped with a gyro with 1 degree of freedom and a horizontal spin axis is a?
Directional gyro.
Turn indicator.
Gyro-magnetic compass.
Fluxgate compass.
50.
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 left.
It will tilt upwards at the right.
It will tilt upwards at the back.
It will tilt upwards at the front.
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