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General Aircraft And BFTS Knowledge > Instruments > Flashcards

Instruments Flashcards

All questions sourced from either SATG or Type Manual.

0
Q

What does ALT on the transponder represent?

A

Mode C, the coded reply includes altitude information in relation to the identification code.

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1
Q

What is the normal range of suction?

A

4-6”

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2
Q

What systems are on the LH main bus (according to the type manual)

A 
Fuel Pump
Turn and bank
Nav lights
Instruments
Landing Light
Warning Lights
Strobe lights
Pitot heat

Pneumonic: Fuck That Night ILS Without Permission

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3
Q

Indications: Fluctuating RPM in flight or no governing.

Cause?
Your Actions?

A

Cause: Faulty CSU or propeller mechanism
Actions: Report fault

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4
Q

Indications: Throttle Sticking

Cause?
Your Actions?

A

Cause: Binding throttle cable or butterfly shaft in air valve
Actions: Report fault

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5
Q

Indications: Engine will not stop when ICO selected

Cause?
Your Actions?

A

Cause: Mixture control valve requires attention.
Actions: Shutdown the engine by turning off the fuel (FUEL COCK - OFF) and report the fault.

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6
Q

What are the three pressure driven instruments?

A
  1. Airspeed Indicator (Pitot-static)
  2. Altimeter (Static)
  3. Vertical Speed Indicator (Static)
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7
Q

Indications: On propeller check at 1800 RPM, revs not decreasing.

Cause?
Your Actions?

NOTE: Max drop allowed, 300 RPM.

A

Cause: Sticking propeller mechanism or CSU out of adjustment.
Actions: If fault persists after full run-up, return and report fault.

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8
Q

Indications: Low oil temp or slow to heat up.

Cause?
Your Actions?

A

Cause: Malfunction of thermostatic valve.
Actions: Run engine until normal temp is reached. Report fault.

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9
Q

Indications: Oil mist on windscreen?

Cause?
Your Actions?

A

Cause: First indication of impending propeller seal failure.
Actions: Set prop FULL INCREASE

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10
Q

Instrument: Tachometer
Fault: Slow or fluctuating reading.

Cause?

A

Cause: Faulty gauge or drive cable.

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11
Q

What does the IDT (IDENT) button on the transponder do?

A

It causes your ‘blip’ on the ATC radar screen to change (colour/size) for 20-25 seconds. Enables positive identification in congested airspace especially.

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12
Q

Define a Rate 1 Turn as indicated on your Turn and Balance indicator.

A

3 degrees per second
180 degrees per minute
360 degrees per two minutes

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13
Q

What is the approximate calculation for a rate 1 turn at a specified KIAS?

A

KIAS divided by 10 + 7.

Example: Rate 1 turn at 90 KIAS = 9+7 = 16 Degrees AoB

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14
Q

Indications: No rev drop on Magneto dead cut check

Cause?
Your Actions?

A

Cause: Earthing circuit to magneto inoperative. Loose lead on magneto capacitor.
Actions: DO NOT allow prop to be turned by hand. Report fault and do not leave aircraft unattended.

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15
Q

Is the Left Hand AI air driven or electric?

A

Electric

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16
Q

Indications: Rough running, back firing, vibration

Cause?
Your Actions?

A

Cause: Faulty ignition, faulty engine fuel system, or mechanical malfunction of the engine.
Actions: Reduce power if possible and determine where the fault is. Return and report fault.

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17
Q

Indications: Fluctuating RPM on the ground

Cause?
Your Actions?

A

Cause: Aircraft not into wind, with gusting wind conditions
Actions: Turn aircraft into wind for run-up

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18
Q

Indications: Low oil pressure or sudden change in oil pressure with engine power unaltered.

Cause?
Your Actions?

A

Cause: High oil temp, malfunction of lubrication system, indication of impending mechanical failure.
Actions: Reduce power and return aircraft for investigation.

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19
Q

Indications: Misfiring

Cause?
Your Actions?

A

Cause: Faulty ignition system
Actions: Report fault

20
Q

What are the following limits for the Alternator?

  1. Normal output
  2. Maximum output
  3. Normal voltage
A
  1. 5-40 Amps
  2. 60 Amps
  3. 25-29 Volts
21
Q

What is the minimum battery voltage permitted?

A

22 volts

22
Q

What are the following oil pressures?

  1. Minimum idle
  2. Normal inflight
  3. Maximum
A
  1. 10 psi
  2. 30-60 psi
  3. 100 psi
23
Q

An AMBER light begins flashing on the Left Hand AI during flight. What does this indicate and what should you do?

A

This indicates electrical power loss to the AI. The STBY PWR button should be pressed to operate the AI on its internal battery.

24
Q

Indications: Excessive rev drop on magneto check (over 150 RPM)

Cause?
Your Actions?

A

Cause: Fouled spark plugs, faulty spark plugs or ignition system.
Actions: If condition persists after clearing run, report fault.

25
Q

Indications: High oil temperature

Cause?
Your Actions?

A

Cause: Thermostatic valve malfunction, cooler coring, blocked cooler air intake.
Actions: Increase airflow through cooler without increasing engine power, or reduce power. Report fault.

26
Q

What does the flag on the turn and balance indicator indicate when it is visible?

A

There is no power to the gyroscope

27
Q

Indications: Excessive fluctuation of the Fuel Flow gauge

Cause?
Your Actions?

A

Cause: Air in the engine fuel system (vapour lock).
Actions: Select LOW boost to purge engine fuel system of air. If no improvement is noticed, select EMERG boost.

CAUTION: Throttle idle before selecting EMERG boost to prevent a rich cut.

28
Q

Indications: Oil temperature gauge fluctuating.

Cause?

A

Cause: Electrical connection faulty or faulty gauge.

Possible impending engine failure.

29
Q

Indications: Slow or fluctuating reading on the Oil Pressure Gauge.

Cause?

A

Cause: Faulty oil pressure gauge or air in the line from engine to instrument.

Possible impending engine failure

30
Q

What does ‘ON’ on the transponder represent?

A

Mode A, the unit replies to interrogations by transmitting the pre selected code.

31
Q

What are the following Oil Temperature limits:

  1. Normal in-flight
  2. Caution in-flight
  3. Maximum
A
  1. 24 - 95 degrees
  2. 95 - 115 degrees
  3. 115 degrees
32
Q

What should you do before changing the transponder code?

A

Turn transponder to STBY to prevent transmitting on another code (an emergency code for example)

33
Q

How long can the electric AI operate for on its backup internal battery?

A

Up to 1 hour after electrical power is lost.

34
Q

Indications: Vibration, especially apparent during propeller pitch change.

Cause?
Your Actions?

A

Cause: Out of balance propeller or propeller malfunction
Actions: Reduce power and report fault

35
Q

What are the following ASI ranges?

  1. Maximum (red line)
  2. Full flap range (white arc)
  3. Normal range (green arc)
  4. Smooth air only (yellow arc)
A
  1. 207 KIAS
  2. 50 - 91 KIAS
  3. 59 - 147 KIAS
  4. 147 - 207 KIAS
36
Q

Indications: High CHT

Cause?
Your Actions?

A

Cause: Lean mixture. Operation for excessive periods at full throttle or high power settings.
Actions: Select full rich, reduce power and/or increase airspeed (attitude change)

37
Q

What are the roll indications on the AI?

A

0, 10, 20, 30, 45, 60, and 90 degrees

38
Q

Indications: Rough running

Cause?
Your Actions?

A

Cause: Rich mixture for altitude or blocked injectors.
Actions: a) Lean mixture for power and altitude
b) Report fault

39
Q

What are the Tachometer limits for:

  1. Idle
  2. Normal In-flight
  3. Takeoff and climb
A
  1. 600 - 800 RPM
  2. 600 - 2800 RPM
  3. 2700 - 2800 RPM
40
Q

What is an overswing?

A

A transient rise in engine RPM to between 2800 RPM and 3000 RPM for less than 10 seconds, followed by a return to normal RPM.

41
Q

Indications: Mixture control stiff or jamming

Cause?
Your Actions?

A

Cause: Mixture control selector requires attention
Actions: Report fault

Check friction nut.

42
Q

Indications: Low Boost / RPM

Cause?
Your Actions?

A

Cause: AIrcraft not into wind. Engine not developing full power. Propeller blades not in fine pitch.
Actions:
a) Turn aircraft into wind
b) Report fault if condition exists after propeller pitch change check and full engine run up.

43
Q

What are the following ranges on the Fuel Flow gauge?

  1. Normal
  2. Maximum
A
  1. 42 - 107 lb/hr

2. 107 lb/hr

44
Q

Which instrument in the CT4B is driven by an engine driven vacuum pump?

A

The right hand AI.

45
Q

What pitch reference marks are there on the AI?

A

Every 2 degrees up to 10 degrees. Then 5 degrees thereafter up to 25 degrees.

46
Q

Indications: Low, no, or fluctuating reading on the CHT gauge.

Cause?
Your Actions?

A

Cause: Faulty gauge or electrical lead connection. Faulty fuel injector in the No. 4 cylinder.

47
Q

On the Fuel Contents Indicating System (Electric Fuel Gauge), what does the yellow and red lights indicate?

A 
Yellow = That tank has 1/4 fuel remaining
Red = That tank has 1/8 fuel remaining

General Aircraft And BFTS Knowledge (6 decks)

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