The JAA
ATPL Instrumentation
test bank contains questions pertaining to
022-01-02 Gyroscopic Instruments
. The following list contains only a relatively small percentage of the pertinent
questions. Our software, which you are free to download now at no cost, will
generally contain a much more complete set of questions associated with this
test bank. This list is intended only to familiarize you in a general way with
the questions of the
Instrumentation
test bank.
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That said, while the following questions are intended
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We do not update this website as often as we update our software, which will
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if you need to actually study for your test, instead of using the list below,
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| Sample Questions
from the JAA ATPL
Instrumentation
Test Bank |
- 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 :the angular velocity of the aircraft about the yaw axisthe bank of the aircraftthe direction of the aircraft turnthe angular velocity of the aircraft about the real verticalThe combination of correct statements is:
- In a left turn, the ball of the turn co-ordinator is out to the right, what corrective action is required?
- Typical directional gyro indicator errors are:
- A tied gyro has .... (i) planes of freedom and is always controlled in .... (ii) of these planes by .... (iii):
- In a Slaved Gyro Compass System the output of the flux-valve is fed to:
- The characteristics of the directional gyro (DG) used in a gyro stabilised compass system are:
- The rotational speed of an air-driven gyro is normally:
- When an aircraft has turned 270 degrees with a constant attitude and bank, the pilot observes the following on a classic artificial horizon:
- At the second state of integration E/W speed is converted into E/W distance gone. To convert this departure into change of longitude it has to:
- Alignment of a RLG INS takes:
- The control and display unit of an inertial navigation system indicates a position of 4810.9° N 00012.2° W on a ramp position 4807.5° N 00005.1° E. What is the radial error rate of the system if it has been in NAV mode for 8 hours 20 minutes:
- 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...
- The operational limits of a typical air driven direction indicator:
- Gimballing error:
- The torque motor of a gyro stabilised magnetic compass:
- Where is the earth rate wander, and the transport wander of a gyro equal to zero?
- The pendulum type detector system of the directional gyro feeds:
- An artificial horizon with an electrical driven gyroscope has greatly reduced take-off errors. This is because:
- When decelerating in an aircraft with an air driven artificial horizon you would expect to see:
- Apparent wander of a gyro is caused by:
- The properties of a Turn Indicator are:One degree of freedomtwo degrees of freedomtwo springs connected to the aircraft framespin axis in the longitudinal planespin axis parallel to the yaw axisspin axis in the lateral plane
- Apparent drift in a direction indicator is:
- The rotor spinning axis of the electrically driven artificial horizon is erected and maintained vertical by:
- On the ground, during a left turn, the turn indicator indicates:
- During an acceleration phase at constant attitude, the resetting principle of the artificial horizon results in the horizon bar indicating a:
- If the needle and the ball of a Turn & Slip indicator both show right, what does it indicate:
- Which of the following is true regarding the turn co-ordinator?
- The triangular cavity in a RLG is filled with which combination of gases:
- An aircraft initiates a rate one turn at a TAS of 270 kt. How far will it have travelled after 25 seconds:
- An IRS with laser gyros should (i) .... be Schuler tuned, and (ii) .... be strapped down.
- A space gyro has .... (i) gimbal rings with .... (ii) planes of freedom:
- Among the flight control instruments, the artificial horizon plays an essential part. It uses a gyroscope with:(Note - in this question, the degrees of freedom of a gyro are determined by the number of gimbal rings it comprises)
- The rotor in an electric artificial horizon is tied to the vertical by:
- The vertical reference unit of a three-axis data generator is equipped with a gyro with:
- A 2 axis gyro measuring vertical changes will have:
- Which of the following statements is most correct when describing a turn co-ordinator?
- The directional gyro axis no longer spins about the local vertical when it is located:
- When turning left on the ground the turn and slip indicator:
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Instrumentation
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