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Engines & Systems Quiz > Engines & Systems > Flashcards

Engines & Systems Flashcards

1
Q

What are the three types of fuselages?

A

Truss type, monocoque, semi-monocoque.

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2
Q

What are the two types of”truss types”?

A

A “warren” and “N” Girder.

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3
Q

One purpose of the dual ignition system on an aircraft engine is to provide for…

A

Improved engine performance.

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4
Q

What should be the first action after starting an aircraft engine?

A

Adjust for proper RPM and check for desired indications on the engine gauges.

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5
Q

Which of the three fuselages is the Cessna comprised of?

A

Semi-monocoque.

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6
Q

What is the firewall?

A

A stainless steel sheet that separates the engine compartment to the rest of the fuselage.

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7
Q

What are spars in a wing?

A

Bars that run from the root to the tip of the wing that carry most of the load in flight.

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8
Q

What do ribs do in a wing?

A

Give shape to a plane, runs front to back.

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9
Q

What are the three types of wing construction?

A

Truss-type, two-spar, web-ring wing.

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10
Q

What type of wing support system does a Cessna have?

A

Semi-cantilever wing.

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11
Q

What is the undercarriage?

A

The part of an aircraft that supports its weight on a surface (ex. landing gear, floats, etc.)

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12
Q

What is the purpose of an undercarriage?

A

To absorb the impact of the aircraft with a surface, and allows for maneuverability of an aircraft on the ground.

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13
Q

What are the four classifications of an undercarriage?

A

Tail dragger, float, tricycle grar and flying boat.

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14
Q

What are the three components of a disc brake?

A

Piston puck, revolving disc, brake pads.

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15
Q

What control system is used for the ailerons?

A

Torque tube.

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16
Q

What control system is used for the elevators?

A

Push/pull rod.

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17
Q

What control system is used for the rudder?

A

Cable & pulley.

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18
Q

What are the 5 stresses?

A

Compression, tension, shearing, bending, torsion.

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19
Q

What type of engine layout is in our C172/C152’s?

A

Horizontally-opposed engines.

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20
Q

What is the four-stroke cycle?

A

Intake, compression, ignition, exhaust. (suck, squeeze, bang, blow)

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21
Q

What are the four functions of oil?

A

cooling, sealing, lubrication, flushing.

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22
Q

What is mineral oil for?

A

No additives, used to break-in engine.

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23
Q

What is ashless dispersant?

A

Suspends contaminants; carbon, lead.

24
Q

What does a turbocharger do?

A

Uses the energy of hot exhaust gases to power a compressor.

25
Q

What colour of fuel is 80/87 octane?

A

Red.

26
Q

What colour is 100LL (one-hundred low-lead)?

A

Blue.

27
Q

What colour fuel is 100 (100/130)?

A

Green.

28
Q

What colour fuel is Jet A1 fuel?

A

Clear or straw-coloured,

29
Q

What are the two different sumps?

A

Dry sump and wet sump.

30
Q

What is pre-ignition?

A

Combustion that begins before it is intended to, before the regular timed spark.

31
Q

What is detonation?

A

Occurs when fuel to air mixture is subject to very high temperatures in the cylinder and combusts.

32
Q

What is vapor-lock?

A

A condition, on warm days, where air enters the fuel system and may be impossible to start an engine.

33
Q

When does carb icing occur?

A

On high moisture days, -5°C to 30°C.

34
Q

What are the three types of carburetor icing?

A

Fuel vaporization, throttle ice, impact ice.

35
Q

What does carb heat do?

A

Prevents ice build up in venturi, but also decreases engine performance.

36
Q

What is the magnetos purpose?

A

Distributes the current to the spark plugs.

37
Q

What is the magneto’s path to the spark plug?

A

Low, to high, to distributor, to spark plug.

38
Q

What is the main function of a propeller?

A

To convert torque from the engine into thrust; which pushes air backwards.

39
Q

Why is the propeller torqued?

A

Because the outer pert of the propeller blade spins faster, while the hub spins slower.

40
Q

What is theoretical (geometric) pitch?

A

The distance the prop would travel if it was 100% efficient.

41
Q

What is the practical pitch?

A

The distance the prop actually moves.

42
Q

What is prop slip?

A

The difference in distance between theoretical and practical pitch.

43
Q

What is coarse pitch?

A

Large angle (bigger bite of air); slower.

44
Q

What is fine pitch?

A

Smaller angle (smaller bite of air); faster and less drag.

45
Q

What is the purpose of the ammeter?

A

To measure the amount of current being used.

46
Q

What are the two types of propellers?

A

Fixed pitch and variable pitch.

47
Q

What are the three variable pitch types?

A

Adjustable, controllable, constant speed.

48
Q

What instruments utilize a gyro?

A

Attitude indicator, heading indicator, and turn coordinator.

49
Q

What items are connected to the vacuum system?

A

Attitiude and heading indicator.

50
Q

When is carb icing at its worst?

A

-5°C to 15°C.

51
Q

What is a disadvantages of a carburetor?

A

Lack of efficiency, float bowl is not suited to negative gravity (upside down), more prone to carb ice.

52
Q

What are advantages of a carburetor?

A

Easier to start, reliable less maintenance.

53
Q

What are advantages of fuel-injection?

A

Better efficiency, much more accurate, difficult to start engine due to vapor lock.

54
Q

What are disadvantages of fuel-injection?

A

Sophisticated and costs much more.

55
Q

Rudder control
Aileron Control
Elevator control

A
  • Cable & pulley
  • Torque tube
  • Push/Pull rod
56
Q

80/87
100LL
100 (100/130)
Jet A1

A

Red
Blue
Green
Clear/Straw

57
Q

What is compression ratio?

A

The volume in the cylinder between the piston.

Engines & Systems Quiz (1 decks)

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