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Questions for INDIGO SYSTEMS( 515-806)

Answer the following questions

1.

Generally, on modern jet transport aircraft, how can the landing gear be extended if there is a complete hydraulic system failure

2.

In order that DC generators will achieve equal load sharing when operating in parallel, it is necessary to ensure that

3.

Hydraulic fluids of synthetic origin are

4.

The pack cooling fan provides

5.

The resistors R1 and R2 are connected in parallel. The value of the equivalent resistance (Req) so obtained is given by the following formula

6.

The function of a constant speed drive (CSD) in an AC generating system is to

7.

The true statement among the following in relation to the application of Ohm's law is

8.

The low pressure switch of a hydraulic circuit sets off an alarm if

9.

Assume a constant speed DC generator providing a constant output voltage. If the electrical load increases, the voltage regulator will

10.

On a transport type aircraft the fuel tank system is vented through

11.

Hydraulic fluids used in systems of large modern airliners are

12.

Assuming a CSD fault is indicated, the CSD should be disconnected

13.

On-board electrical systems are protected against faults of the following type:1. AC generator over-voltage2. AC generator under-voltage3. over-current4. overspeed5. under-frequency6. undue vibration of AC generatorsThe combination of correct statements is

14.

The function of a fusible plug is to

15.

The frequency of an AC generator is dependent on the

16.

The vapor lock is

17.

Cabin pressure is controlled by

18.

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

19.

On modern transport aircraft, cockpit windows are protected against icing by

20.

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

21.

The purpose of a voltage regulator is to control the output voltage of the

22.

In large modern aircraft, in the air conditioning system, reduction of air temperature and pressure is achieved by

23.

In flight, the most commonly used anti-icing method for the wings of modern commercial aircraft fitted with turbo-jet units is

24.

An artificial feel unit system

25.

On an airplane, the Krueger flaps are

26.

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

27.

A torsion link assembly is installed on the landing gear to

28.

The Auxiliary Power Unit (APU) has its own AC generator which

29.

Environmental system: in the air refrigeration unit, the water separation unit is placed

30.

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

31.

""Conditioned"" air is air that has

32.

A thermal circuit breaker

33.

The type of brake unit found on most transport aeroplanes is a

34.

If two constant frequency AC generators are operating independently, then the phase relationship of each generator

35.

The function of an air cycle machine is to

36.

A Yaw Damper is

37.

The cabin air for modern airplanes is usually supplied by

38.

On most transport aircraft, the low pressure pumps of the fuel system are

39.

The reason for the trim switch on a control column to consist of two separate switches is

40.

On most transport jet aircraft, the low pressure pumps of the fuel system are supplied with electric power of the following type

41.

The pneumatic ice protection system is mainly used for

42.

The term ""Bootstrap"", when used to identify a cabin air conditioning and pressurisation system, refers to the

43.

A tubeless tyre has :1- a built-in-air tube.2- no built-in-air tube.3- a crossed side casing.4- a radial side casing.The combination of correct statements is

44.

Cabin air for modern aircraft is usually taken from

45.

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

46.

Hydraulic fluids

47.

The correct statement about rain protection for cockpit windshields is that

48.

Large transport aeroplane hydraulic systems usually operate with a system pressure of approximately

49.

The purpose of a shuttle valve is to

50.

On a jet aircraft fuel heaters are