EASA Questions Module 13 Set 11

Question : 1 - 20 21 - 40 41 - 60 61 - 80 81 - 100

Question 1 - 5 of 20 (10 points each question)

1) One method of providing vacuum for pneumatic gyro instruments is by Report

a static port.

a venturi mounted on the outside of the aircraft.

an engine driven venturi.

2) Engine driven pressure pumps used to drive gyro instruments have an advantage over engine driven vacuum pumps in that: Report

air is blown through the instruments instead of being sucked through.

they provide gyro power in emergency situations.

no filter is required on the regulator.

3) When referring to gyroscopes, Turn Error is described as errors introduced in the gyro during turns as a result of: Report

Centrifugal forces acting on the gyro erection system.

Incorrect aircraft bank.

The aircraft turning at a rate 4 turn.

4) A free space gyro does not have : Report

to be mounted in a Gimbal system.

friction in its bearings.

an erection system.

5) If a force is applied to a spinning gyro, its effect will be felt at a point Report

90 deg from the point of application in the direction of rotation.

180 deg from the point of application in the direction of rotation.

the point of application in the direction of rotation.

6) An aircraft's attitude is always referenced to the earth's surface. Therefore where aircraft instruments are concerned, the gyro must be: Report

Be a free or space gyro.

Have only one degree of freedom.

Be earth tied.

7) Gyro topple can occur if the aircraft Report

carries out an uncoordinated turn.

pitch or roll exceeds the limits of the gimbal system.

gyro is not caged.

8) A simple check that can be carried out during maintenance of an electric gyro system is to apply power to the gyro and wait until it reaches full speed then: Report

Listen for any unusual noise when the gyro is spinning. This may indicate worn bearings.

Remove the air filters and check to see if the gyro speeds up, this indicates the filters may be blocked.

Remove power and check the run down time. A long run down time indicates the bearings may be getting worn.

9) Electric gyros spin at approx: Report

20,000 - 23,000 rpm.

8,000 - 10,000 rpm

200 - 500 rpm

10) How many axis of freedom does a free or space gyro have? Report

11) Real drift, or unwanted precession in a gyro is caused by Report

excessively long flights

imperfections in the gyro such as bearing friction and gimbal system unbalance.

aircraft motion that includes both pitch and roll.

12) When carrying out general maintenance on gyro systems a common maintenance practice used on both pneumatic and electric gyros is to: Report

Replace the filters at regular intervals, as prescribed in the maintenance manual.

While the gyro is spinning at full speed remove the driving force and measure the time it takes for the gyro to run down. Short rundown times may indicate worn bearings.

Ensure none of the pipes or fitting have become chaffed, or bend radius is to tight.

13) One characteristic of a spinning gyroscope is Report

rigidity in space.

the ability to self erect.

it always remains oriented towards north.

14) During flight the pilot observes that the aircraft symbol on the Gyro Horizon is centered in the blue section of the instrument. This indicates to the pilot that the aircraft is: Report

Climbing.

Diving.

Banking left or right.

15) The gyroscope used in an Artificial Horizon has a vertical spin axis. As the aircraft banks left and right the spin axis : Report

banks left and right also.

moves at 90 degrees to the direction of the aircraft bank.

remains vertical.

16) Which of the following pair of instruments operate on gyroscopic principles : Report

Artificial Horizon - Turn and Bank

Turn and Bank - Altimeter

Altimeter - Artificial Horizon

17) A common method for slip indication uses : Report

A rate gyro and pointer.

A free space gyro and pointer.

A curved liquid filled glass tube and a ball.

18) A co-ordinated turn refers to a turn in which: Report

The amount of bank ensures that the resultant force of gravity and centrifugal force is acting downwards at right angles to the aircraft's wings.

The amount of bank ensures that the resultant force of gravity and centrifugal force is acting downwards towards the center of the earth.

The amount of bank ensures that the resultant force of gravity and centrifugal force is acting downwards at right angles to the earth's surface.

19) A standard 2 minute rate turn refers to : Report

A co-ordinated turn.

A turn at a rate of 3 degrees per second.

A turn only used by large, high speed, aircraft.

20) A Turn and Bank indicator contains two independent mechanisms. One of these is: Report

A ball mechanism which shows the rate at which the aircraft is turning.

A gyro which detects the amount of slip or skid the aircraft is undergoing during the turn.

A gyro which detects the rate at which the aircraft is turning.

EASA Questions Module 13 Set 11

Set 1

Set 2

Set 3

Set 4

Set 5

Set 6

Set 7

Set 8

Set 9

Set 10

Set 11

Set 12