test bank contains questions pertaining to
022-01-02 Gyroscopic Instruments
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from the EASA ATPL
- The fundamental difference between an INS and an IRS is that:
- The case of an air driven turn and balance indicator is leaking. A rate 1 turn of 360° will take:
- (Refer to figure 022-09)The attached diagram shows a gyro-stabilized platform. 1 is a .... gyro gimbal and 2 is a .... gyro gimbal.
- What indications should you get from the turn-and-slip indicator during taxi?
- An INS with the accelerometers aligned N/S and E/W is limited to use at latitudes below about 82° . This is because:
- Assume a perfectly frictionless DI is corrected to give zero drift on the ground at 30° N. The DI is set to read 270° in an aircraft tracking along the 60° parallel at a groundspeed of 545 knots. The DI reading after 80 minutes:
- Erection systems are provided for the purpose of:
- The heading information originating from the gyromagnetic compass flux valve is sent to the:
- The rotational speed of the gyroscope in a turn indicator falls below the correct operational speed. A 90° turn at an indicated RATE ONE on this turn indicator will take:
- An airborne instrument, equipped with a gyro with 1 degree of freedom and a horizontal spin axis is a:
- (Refer to figure 022-08)The diagram representing a left turn with insufficient rudder is:
- What is the main cause of precession?
- The operating principle of the pendulous vane unit erecting system is:
- Deviation compensation in a flux gate compass is done:
- When an aircraft has turned 90 degrees with a constant attitude and bank, the pilot observes the following on a classic artificial horizon:
- The errors of an INS fall into 3 categories:
- A Stand-by-horizon or emergency attitude indicator:
- The basic properties of a gyroscope are:The gyro's weightThe rigidity in spaceThe inertiaThe high RPMThe precessionThe combination of correct statements is:
- A standby artificial horizon must have the following properties:a remote gyroits own power supplyonly to be used in emergencyits own gyroone for each certified pilot
- When using an INS platform Coriolis affects:
- When, in flight, the needle and ball of a needle-and-ball indicator are on the left, the aircraft is:
- In a DGI what error is caused by the gyro movement relative to the earth?
- In order to align a strapdown inertial unit, it is requited to insert the local geographical coordinates. This is necessary to:
- Following 180° stabilized turn with a constant attitude and bank, the artificial horizon indicates:
- An aircraft is flying at a TAS of 270 knots. What AOB will give a rate 1 turn:
- What are the advantages of a laser gyro compared to a conventional gyro?
- The principle of operation of the turn and slip indicator is best described as:
- A gravity erector system is used to correct the errors on:
- The position accuracy of an RLG INS is:
- What is the maximum drift of a gyro, due to earth rate:
- An aircraft is flying along the 60° S parallel. After one hour the DI indication has increased by 21° . If the latitude nut of the DI has been set to zero drift on the ground at 30° S, the groundspeed of the aircraft is:
- When, in flight, the needle and ball of a needle-and-ball indicator are on the right, the aircraft is:
- In a left turn while taxiing, the correct indications are:
- The gimbal error of the directional gyro is due to the effect of:
- In the building principle of a gyroscope, the best efficiency is obtained through the concentration of the mass:
- Concerning the directional gyro indicator, the latitude at which the apparent wander is equal to 0 is:
- The forces which affect the balance ball in a turn and slip indicator are:
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