MODULE 14 - MOCK TEST 20 MARKS

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Type of compressors used in Jet Engines

1 point

a. Centrifugal Type Turbines and Axial Flow Compressors

b. Axial flow compressors and centrifugal flow turbines

c. Centrifugal and Axial flow Compressors

Clear selection

Charles Law

1 point

a. Volume and Temperature are directly proportional

b. Pressure and Temperature are directly proportional

c. Both (a) and (b)

d. Pressure is inversely proportional to Volume

Clear selection

Pneumatic source for Air starters on large commercial Aircrafts are from

1 point

a. Onboard Auxillary Power unit

b. A ground power unit

c. Cross-bleed source of another operating engine

d. All the above

Clear selection

Air starter advantages over electric starters

1 point

a. Direct cranking electric starters (Small Reciprocating Engines) small turbo shaft and APU

b. Weight of Air starter is ¼ to ½ than Electric starter

c. High Torque compared to electric starter

d. Both b and c

Clear selection

The advantage of using starter generators in Auxillary Power Units of a Turbofan Engine and small Turbo shaft engines

1 point

a. Starter generator can be used for starting and power generation purpose

b. Avoids use of separate starters for starting and power generation

c. Both a and b

Clear selection

In the Fuel flow Indicating/measurement system, the input voltage 115v single phase 400 Hz is converted into

1 point

a. 60V 8 Hz Two Phase Output

b. 36v 50Hz

c. 36v 400 Hz

Clear selection

No of channels in EEC

1 point

a. Two

b. Three

c. Four

Clear selection

Immersion type probe used on.

1 point

1.turbojet

2.turbofan

3.turboprop

4. all

Clear selection

MTCS Starter generators

1 point

a. Strong series generator with heavy shunt windings

b. Strong series generator with series winding

c. Strong shunt generator with heavy series windings

d. Shunt generator with an additional heavy series winding

Clear selection

Air starter advantages over electric starters

1 point

a. Direct cranking electric starters (Small Reciprocating Engines) small turbo shaft and APU

b. Weight of Air starter is ¼ to ½ than Electric starter

c. High Torque compared to electric starter

d. Both b and c

Clear selection

The Capacitors in the exiter unit

1 point

a. Air cooled

b. Oil cooled

c. Sealed

Clear selection

Precautions while working on Igniter Circuits. Mark the correct statement

1 point

a. Disconnect electrical connectors from exciter units.

b. Apply steady pressure with one hand on the hinge handle, holding the socket in alignment with the other hand to remove Igniter plug

c. Disconnect electrical connector from the igniter plug

Clear selection

EEC having connector on each channel

1 point

Clear selection

In EEC to control the postion of the metering valve, Fuel Metering Valve is ____ operated by

1 point

a. servo

b. solenoid driver

c. Torque motor driver

Clear selection

Ratiometer type Indication basic construction

1 point

a. Ratiometer consists of a sensing element and moving coil indication

b. Ratiometer system does not require hairsprings for excersing a controlled torque

c. in conventional moving coil indicator the controlling system is made up of hairspring

d. All the above

Clear selection

EEC

1 point

ELECTROSTATIC ENGINE CONTROL

ELECTRONIC ENGINE CONTROL

ENGINE ELECTRONIC CONTROL

Clear selection

Synchronous transmission-type Oil pressure indicating system uses

1 point

a. Torque syncro Tx and RX

b. Control syncro TX and RX

c. Servo motors at tx and rx

Clear selection

In EGT flag will also appear if 115 VAC falls below

1 point

101VAC

100VAC

200VAC

Clear selection

Maximum limit marks on scale-

1 point

YELLOW

GREEN

RED

Clear selection

Engine oil pressure indication system

1 point

a. Difference between input and output pressure

b. Pump output pressure plus atmospheric pressure

c. Sump pressure plus atmospheric pressure

Clear selection

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