1/30
Question ID: 107811

Under normal conditions (EASA CS-25) the cabin pressure altitude of a transport aeroplane is not allowed to exceed?

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A

6000 ft

B

10000 ft

C

4000 ft

D

8000 ft
2/30
Question ID: 110348

On the lower image on the image shown, the landing gear element indicated by the number 11 is a?

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A

Bogie beam

B

Bogie pitch trimmer

C

Retraction actuator

D

Torque link
3/30
Question ID: 110528

The characteristics of a centrifugal compressor are:

1) A high pressure ratio by stage

2) A large diameter

3) A low pressure ratio by stage

4) A small diameter


The combination containing all of the correct statements is?

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A

3,4

B

2,3

C

1,4

D

1,2
4/30
Question ID: 109605

If the ground wire between the magnetos and the ignition switch becomes disconnected the most noticeable result will be that?

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A

A still operating engine will shut down

B

The engine cannot be started with the ignition switch in the ON position

C

The power developed by the engine will be strongly reduced

D

The engine cannot be shut down by turning the ignition switch to the OFF position
5/30
Question ID: 110781

A gas turbine engine turbine section may employ active clearance control?

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A

In order to reduce 'creep' in the blades

B

To provide enhanced clearances between the blade tips and the casing

C

As a method of attaching the stators and rotors to the hub of the disc

D

In order to cool the disc
6/30
Question ID: 107976

Consider a fuel injection system. Which is the central point from where fuel is distributed to the individual cylinders?

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A

Injection valve

B

Fuel pump selector valve

C

Manifold valve

D

Discharge nozzle
7/30
Question ID: 108143

In the attached image, which image represents COMPRESSION?

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A

2

B

3

C

4

D

1
8/30
Question ID: 110848

Which of these statements about an impulse turbine are correct or incorrect?

1. The pressure remains constant across the nozzle guide vanes

2. The pressure rises across the rotor blades

This question has been flagged as being in an exam by multiple students, give it more attention

A

1 is correct, 2 is incorrect

B

1 is incorrect, 2 is incorrect

C

1 is incorrect, 2 is correct

D

1 is correct, 2 is correct
9/30
Question ID: 110841

In a compressor stage of a gas turbine engine, if the axial air velocity increases more than the rotor blade velocity the?

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A

Pressure ratio will be too high

B

Relative air velocity becomes supersonic

C

Stall margin increases

D

Stall margin decreases
10/30
Question ID: 110330

The bypass ratio:

1) Is the ratio of bypass air mass flow to HP compressor mass flow

2) Can be determined from the inlet air volume flow and the HP compressor volume flow

This question has been flagged as being in an exam by multiple students, give it more attention

A

1) is incorrect, 2) is correct

B

1) is correct, 2) is incorrect

C

1) is correct, 2) is correct

D

1) is incorrect, 2) is incorrect
11/30
Question ID: 110516

The type of gate that requires all 'TRUE' inputs for a 'TRUE' output is?

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A

AND

B

NOR

C

NAND

D

OR
12/30
Question ID: 110141

The function of a hydraulic selector valve is to?

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A

Select the system to which the hydraulic pump should supply pressure

B

Automatically activate the hydraulic system

C

Discharge some hydraulic fluid if the system pressure is too high

D

Direct system pressure to either side of the piston of an actuator
13/30
Question ID: 107783

How does the rain repellent work on windscreens?

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A

Cause the water to evaporate on impact

B

Causes the water to form beads and roll off the windscreen

C

Causes the water to absorb in to the liquid

D

Causes the water to form tiny particles
14/30
Question ID: 108491

The primary purpose of bonding the metallic parts of an aircraft is to?

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A

Provide safe distribution of electrical charges and currents

B

Prevent electrolytic corrosion between mating surfaces of similar metals

C

Provide a single earth for all electrical devices

D

Isolate all components electrically and thus make the static potential constant
15/30
Question ID: 107831

The term bootstrap, when used to identify a cabin air conditioning and pressurization system, refers to the?

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A

Air cycle machine

B

Means by which pressurization is controlled

C

Source of the air supply

D

Air supply across the intercooler heat exchanger
16/30
Question ID: 110069

The accessory units driven by the accessory gearbox of a turbo-jet engine are the:

1) Tacho-generator N1

2) Tacho-generator N2

3) Thrust reverser pneumatic motors

4) AC generator and its Constant Speed Unit (CSD)

5) Oil pumps

6) Hydraulic pumps

7) High pressure fuel pumps


The combination regrouping all the correct statements is?

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A

2,4,5,6,7

B

1,2,4,5,6

C

2,3,4,5,6,7

D

4,5,6,7
17/30
Question ID: 107882

The capacitance type fuel gauging system indicates the fuel quantity by measuring the?

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A

Electrical resistance change

B

Resistivity variation of the fuel

C

Density variation of the fuel

D

Dielectric change between fuel and air
18/30
Question ID: 114137

The pilot may be prevented from retracting the landing gear whilst the aircraft is on the ground?

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A

Because any attempt to select the landing gear up will result in a flashing warning light and a loud horn

B

By the electrical control system being disabled by the weight on wheels switch

C

By a guard on the selector switch which cannot be moved until the aircraft is airborne

D

By a pneumatic interlock which disables the hydraulic up selector
19/30
Question ID: 109155

On the ground, APU GEN can be used to feed both AC BUS 1 and AC BUS 2 when?

(Note all contactors not mentioned are assumed to remain open)

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A

C2-1 and C2-2 are closed

B

C1-1, C2-1 and C2-2 are closed

C

C1-4, C2-1 and C2-2 are closed

D

C1-3, C2-1 and C2-2 are closed
20/30
Question ID: 110809

A turbofan engine with an inlet air mass flow of 300 kg/s and a HP compressor mass flow of 50 kg/s has a bypass ratio of?

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A

1.2

B

5

C

7

D

6
21/30
Question ID: 109400

Which of the following is a risk associated with Lithium batteries?

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A

Release of flammable gases when they are charged at too high of a rate

B

A short-circuit when the electrolyte comes into contact with the electrodes

C

A short-circuit when the electrolyte comes into contact with earth

D

Release of flammable gases when they are discharged at too high of a rate
22/30
Question ID: 109416

A large transport aircraft is fitted with flight spoilers, speed brakes, trailing-edge flaps, and a moveable horizontal stabilizer. If the aircraft ailerons are jammed, roll control may be achieved by using the?

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A

Horizontal stabilizer

B

Speed brakes

C

Differential flaps

D

Flight spoilers
23/30
Question ID: 110997

Turbine fuel may contain additives to?

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A

Increase the viscosity across a range of temperatures

B

Enhance the combustion temperature

C

Reduce the risk of ice crystals forming at low temperatures

D

Increase the flashpoint at high temperatures
24/30
Question ID: 114134

Choose the correct statement about auto-brake systems (ABS)?

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A

A take-off warning during the take-off will be generated if the auto-brake system has not been armed

B

For a given touchdown ground speed on a dry runway without the use of reverse thrust, the stopping distance solely dependents on the selected ABS setting and weight of the airplane

C

Without pilot interference an auto-brake system continues to operate until standstill

D

An armed auto-brake system will always try to achieve the selected deceleration level directly after main wheel touchdown
25/30
Question ID: 109558

The power output of a piston engine can be calculated by?

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A

Work x velocity

B

Pressure x arm

C

Force x distance

D

Torque x RPM
26/30
Question ID: 109245

What is the name of the control surface that rotates an aeroplane about its normal axis?

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A

The trim tabs

B

The ailerons

C

The rudder

D

The elevator
27/30
Question ID: 110609

To enhance brake life in relation to brake wear, it is recommended?

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A

For carbon brakes to use a large number of small brake applications during taxi

B

For both carbon and steel brakes to use differential braking to reduce brake temperatures

C

For steel brakes to use a large number of small brake applications during taxi

D

For steel brakes to use a single, firm brake application during taxi
28/30
Question ID: 107747

The heating facility for the windshield of an aircraft is?

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A

Used only at low altitudes where there is a risk of ice formation

B

Only used when hot air demisting is insufficient

C

Harmful to the integrity of the windows in the event of a bird strike.

D

Used on a continual basis as it reduces the thermal gradients which adversely affect the useful life of the components
29/30
Question ID: 110041

In hydraulic system, a SHUTTLE VALVE?

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A

Is a non-return valve

B

Allows two units to be operated by one pressure source

C

Regulates pump delivery pressure

D

Enables an alternate system to operate the same actuators in case of normal system failure
30/30
Question ID: 110038

The purpose of magnetic chip detectors is to?

This question has been flagged as being in an exam by multiple students, give it more attention

A

Remove large items of debris from the system

B

Increase lubricating oil adhesion to main surfaces

C

Perform the function of a micron filter

D

Warn of impending failure
Finish Test
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