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Questions for INDIGO SYSTEMS( 515-806)

Answer the following questions

1.

In aeronautics, the most commonly used batteries are NiCd because

2.

Concerning electrically powered ice protection devices, the only true statement is

3.

In flight, if the constant speed drive (CSD) temperature indicator is in the red arc the

4.

The cabin rate of descent is

5.

Shimmy occurs on the nosewheel landing gear during taxiing when:1. the wheels tend to describe a sinusoidal motion on the ground2. the wheels no longer respond to the pilot's actionsThis effect is overcome by means of:3. the torque link4. an accumulator associated with the steering cylinderThe combination of correct statements is

6.

The so-called ""hot buses"" or ""direct buses"" are

7.

In a steep turn to the left, when using spoilers

8.

A turbo-fan cold air unit will

9.

The speed of an asynchronous four-pole motor fed at a frequency of 400 Hertz is

10.

""Conditioned"" air is air that has

11.

The measured output power components of a constant frequency AC system are

12.

The reason for the fact that an aeroplane designed for long distances cannot simply be used for short haul flights at higher frequencies is that

13.

The fuel supply system on a jet engine includes a fuel heating device, upstream of the main fuel filter so as to

14.

A Yaw Damper is

15.

The ice protection for propellers of modern turboprop aeroplanes works

16.

In an aircraft equipped with a DC main power system, AC for instrument operation may be obtained from

17.

The cabin heating supply in a heavy jet transport aircraft is obtained from

18.

Landing gear torque links are used to

19.

In a compensated capacitance type quantity indicating system, the contents gauge of a half-full fuel tank indicates a fuel mass of 8000 lb. If a temperature rise increased the volume of fuel by 5 %, the indicated fuel weight would

20.

Cabin pressure is controlled by

21.

Main cabin temperature is

22.

In a hydraulic braking system, the accumulator is

23.

A 3 phase AC generator has 3 separate stator windings spaced at

24.

Thermal plugs are installed in

25.

Internal leakage in a hydraulic system will cause

26.

A ""trip-free"" type circuit breaker is a circuit protection device which

27.

Connecting two 12 volt 40 ampere-hour capacity batteries in series will result in a total voltage and capacity respectively of

28.

On an aircraft, the Krueger flap is a

29.

Cabin differential pressure means the pressure difference between

30.

An accumulator in a hydraulic system will

31.

During flight, the wing anti-ice system has to protect

32.

When a landing gear wheel is hydroplaning, its friction factor is equal to

33.

The advantages of alternating current on board an aircraft are:1. simple connection2. high starting torque3. flexibility in use4. lighter weight of equipment5. easy to convert into direct current6. easy maintenance of machinesThe combination of correct statements is

34.

In addition to energy storage the accumulator of the hydraulic system is used

35.

If the frequency of the supply in a series capacitive circuit is increased, the current flowing in the circuit will

36.

The advantages of grounding the negative pole of the aircraft structure are:1. Weight saving2. Easy fault detection3. Increase of short-circuit risk4. Reduction of short-circuit risk5. Circuits are not single-wired linesThe combination regrouping all the correct statements is

37.

The purpose of baffle check valves fitted in aircraft fuel tanks is to

38.

The type of windings commonly used in DC starter motors are

39.

Assuming a hydraulic accumulator is pre-charged with air to 1000 psi. If the hydraulic system is then pressurised to its operating pressure of 3000 psi, the indicated pressure on the air side of the accumulator should be

40.

The purpose of the baffles in an aircraft's integral fuel tank is to

41.

The cross-feed fuel system enables

42.

The cabin air for modern airplanes is usually supplied by

43.

The illumination of the green landing gear light indicates that the landing gear is

44.

The services connected to a supply bus-bar are normally in

45.

In flight the wing of an aircraft containing fuel is subjected to vertical loads that produce a bending moment which is

46.

Concerning the sequential pneumatic impulses used in certain leading edge deicing devices, one can affirm that :1 - They prevent ice formation.2 - They are triggered from the flight deck after icing has become visible.3 - A cycle lasts more than ten seconds.4 - There are more than ten cycles per second.The combination which regroups all the correct statements is

47.

The refueling in a transport jet aircraft is made

48.

It may be determined that an aircraft is not properly bonded if

49.

The ABS (Auto Brake System) is being diconnected after landing

50.

Pulling the fire shutoff handle causes a number of devices to disconnect. In respect of the AC generator it can be said that the