19 Flashcards

1
Q

Electrical systems are used for heating pitot and static probes and ports. What kind of electrical redundancy feature is normally found in such system?

A

They are powered from the emergency electrical buses

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2
Q

What is the function of a suppressor?

A

It screens out interference

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3
Q

In a torque synchro of an auto pilot system, current will flow between the transmitter and receiver stators when the rotors are:

A

Out of alignment

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4
Q

What jet pipe temperature probe would be found in a turbo prop as opposed to a turbo fan?

A

Rapid response probe

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5
Q

One purpose of a comparator system is:

A

Compare referenced information with displayed information

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6
Q

A power failure to a CRT will be indicated by:

A

A blank screen

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7
Q

In relation to FMS, a “blended position” is the result of a comparison of output from the primary navigation reference with:

A

Outputs from the other navigation sensors

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8
Q

What is the purpose of a transformer?

A

To change from on AC voltage to another AC voltage

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9
Q

What would be the full hydroplaning speed of a 130 tonne aircraft with tyre pressures of 145psi?

A

108 kts

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10
Q

The purpose of the flux valve in a gyro-stabilised heading reference system is to:

A

Sense the A/C’s heading relative to the earth’s magnetic field

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11
Q

What is the reason for the fuel heater in an engine fuel system?

A

To ensure that the fuel is free of ice crystals

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12
Q

With regard to the temperature of the gas flow in the turbine section: EGT

A

EGT is the temperature at turbine exit

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13
Q

Most landing gear systems in transport a/c have uplocks which are normally released by a hydraulic actuator to permit gear extension. How then is the gear extended in the event of a
total hydraulic system failure?

A

By an electrical motor or cables which trip the locking mechanism for each gear

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14
Q

With respect to GPWS, which of the following statements is correct?

A

Windshear warnings take priority over all other modes

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15
Q

In relation to autopilots, what is meant by the term, ‘coupling’?

A

It means that the autopilot is connected to one or more specific sensors to maintain specific parameters

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16
Q

Electrical signals from the autopilot signal processor commands the flight control system to move as needed. What stops the controls from moving to full deflection?

A

A feedback element produces an opposing signal

17
Q

What is the advantage in the use of a free power turbine in a turbo-prop engine?

A

Provides torque mechanically independent of other turbine-compressor shafts

18
Q

What occurs if the flight level change button is depressed?

A

The aircraft will climb or descend to the altitude set in the window

19
Q

Both CDU’s can input information to the FMC. Which one statement below is most correct?

A

Both CDU’s input information to both FMC’s with equal seniority

20
Q

Which one statement listed below is most correct regarding a B767 which is operating outside its FMC navigation database?

A

The departure and destination airport runways cannot be displayed, and all waypoints must be manually entered by the crew by latitude and longitude

21
Q

Once stabilised in a holding pattern, the aircraft will not depart the ICAO protected airspace as long as the FMC flies the aircraft in LNAV. T/F

A

False

22
Q

FMC waypoint sequencing occurs even when the FMC is flying a “vectors leg” as part of a SID. T/F

A

False

23
Q

A B767 aircraft is on climb to FL330 in VNAV. The MCP alt window is set to 35000 ft. Which one statement listed below is corrected about the aircraft future actions in the climb?

A

The aircraft will capture FL330