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2ND SEMESTER_PRELIM > AC POWERPLANT OVERHAUL & AMP; TROUBLESHOOTING > Flashcards

AC POWERPLANT OVERHAUL & AMP; TROUBLESHOOTING Flashcards

1
Q

It is an engine that uses one or more pistons in order to convert pressure into rotational motion.

A

RECIPROCATING ENGINE

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2
Q

Two types of reciprocating engine

A

LYCOMING ENGINE

CONTINENTAL ENGINE

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3
Q

It has the camshaft above the crankshaft.

A

LYCOMING ENGINE

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4
Q

It has the camshaft below the crankshaft.

A

CONTINENTAL ENGINE

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5
Q

It is a description of what happens to a gas as it is subjected to changes of pressure, temperature, volume, addition of heat, and removal of heat.

A

OTTO CYCLE

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6
Q

4 strokes-5 events cycle

A

INTAKE STROKE (TDC TO BDC)

COMPRESSION STROKE (BDC TO TDC)

COMBUSTION

POWER STROKE (TDC TO BDC)

EXHAUST STROKE (BDC TO TDC)

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7
Q

Basic major components of a reciprocating engine

A

CRANKCASE

CYLINDERS

PISTONS

CONNECTING RODS

VALVES

VALVE OPERATING MECHANISM

CRANKSHAFT

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8
Q

In the head of each cylinder are the valves and spark plugs.

A

In the head of each cylinder are the VALVES and SPARK PLUGS.

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9
Q

One of the valves is connected to the induction system, the other is in a passage leading to the exhaust system.

A

One of the valves is connected to the INDUCTION SYSTEM, the other is in a PASSAGE LEADING TO THE EXHAUST SYSTEM.

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10
Q

The foundation of an engine.

A

CRANKCASE

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11
Q

It is any surface that supports or is supported by another surface.

A

BEARING

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12
Q

It used in aircraft engines are designed to produce minimum friction and maximum wear resistance.

A

BEARING

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13
Q

Main purpose of a bearing

A

TO REDUCE THE FRICTION OF MOVING PARTS

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14
Q

Types of bearings

A

PLAIN BEARING

BALL BEARING

ROLLER BEARING

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15
Q

They are generally used for the Crankshaft, cam ring, camshaft, connecting rods, and the accessory drive shaft bearings.

A

PLAIN BEARINGS

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16
Q

They are usually made of nonferrous (having no iron) metals, such as silver, bronze, aluminum, and various alloys of copper, tin, or lead.

A

PLAIN BEARINGS

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17
Q

It assembly consists of grooved inner and outer races, one or more sets of balls, in bearings designed for disassembly, and a bearing retainer.

A

BALL BEARINGS

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18
Q

They are used for shaft bearings and rocker arm bearings in some reciprocating engines.

A

BALL BEARINGS

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19
Q

They are made in many types and shapes, but the two types generally used in the aircraft engine are the straight roller and the tapered roller bearings.

A

ROLLER BEARING

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20
Q

They are used in high-power aircraft engines as main bearings to support the crankshaft.

A

ROLLER BEARING

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21
Q

It is the backbone of the reciprocating engine.

A

CRANKSHAFT

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22
Q

It is a shaft composed of one or more cranks located at specified points along its length.

A

CRANKSHAFT

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23
Q

Main parts of a crankshaft

A

MAIN JOURNAL

CRANKPIN

CRANK CHEEK

COUNTERWEIGHTS & DAMPERS

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24
Q

part of the crankshaft that is supported by and rotates in a main bearing

A

MAIN JOURNAL

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25
Q

The crankpin can also be called WHAT?

A

CONNECTING-ROD BEARING JOURNAL

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26
Q

The crankshaft will rotate when a force is applied to the crankpin in any direction

A

The CRANKSHAFT will rotate when a force is applied to the crankpin in any direction

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27
Q

Sometimes called the CRANK ARM, is the part of the crankshaft which connects the crankpin to the main journal.

A

CRANK CHEEK

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28
Q

It extends beyond the main journal and supports a counterweight used to balance the crankshaft.

A

CRANK CHEEK

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29
Q

It is provide static balance for a crankshaft.

A

COUNTERWEIGHT

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30
Q

It is relieve the whip and vibration caused by the rotation of the crankshaft.

A

DYNAMIC DAMPER

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31
Q

It is the link which transmits forces between the piston and the crankshaft of an engine.

A

CONNECTING ROD

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32
Q

The end of the rod which connects to the crankshaft

A

LARGE END

CRANKPIN END

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33
Q

The end which connects to the piston pin

A

SMALL END

PISTON-PIN END

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34
Q

It is a cylindrical member which moves back and forth within a steel cylinder.

A

PISTON

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35
Q

Those are machined around the outer surface of the piston to provide support for the piston rings.

A

GROOVES

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36
Q

Two types of piston rings

A

COMPRESSION RINGS

OIL RINGS

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37
Q

It is to prevent the escape of combustion gases past the piston during engine operation.

A

COMPRESSION RING

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38
Q

It is to control the quantity of lubricant supplied to the cylinder walls and to prevent this oil from passing into the combustion chamber.

A

OIL RINGS

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39
Q

Those are placed in the grooves immediately below the compression rings.

A

OIL RINGS

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40
Q

It joins the piston to the connecting rod.

A

PISTON PINS

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41
Q

Piston pins sometimes called WHAT?

A

WRIST PIN

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42
Q

It used in modern aircraft engines is the full-floating type.

A

PISTON PINS

43
Q

It converts the chemical heat energy of the fuel to mechanical energy and transmits it through pistons and connecting rods to the rotating crankshaft.

A

CYLINDER OF AN INTERNAL-COMBUSTION ENGINE

44
Q

Cylinder assembly components

A

CYLINDER BARREL

CYLINDER HEAD

VALVE GUIDES

VALVE ROCKER ARM SUPPORTS

VALVE SEATS

SPARK PLUG BUSHINGS

COOLING FINS

45
Q

It is made of a steel alloy forging with the inner surface hardened to resist wear of the piston and the piston rings which bear against it.

A

CYLINDER BARREL

46
Q

It is to provide a place for combustion of the fuel/air mixture and to give the cylinder more heat conductivity for adequate cooling.

A

CYLINDER HEAD

47
Q

It provides mounting pads for the accessory units.

A

ACCESSORY SECTION

48
Q

It also serves as part of the lubrication system.

A

ACCESSORY CASE

49
Q

It functions of intake, compression, combustion, and exhaust all take place in the same combustion chamber.

A

GAS TURBINE ENGINE

50
Q

It devoted to each function, and all functions are performed simultaneously without interruption.

A

GAS TURBINE ENGINE

51
Q

It is typically located at the front of the compressor.

A

AIR INLET

52
Q

He credited for inventing design of gas turbine engine

A

FRANK WHITTLE

53
Q

gas turbine engine consists

A

AN AIR INLET

COMPRESSOR SECTION

COMBUSTION SECTION

TURBINE SECTION

EXHAUST SECTION

ACCESSORY SECTION

THE SYSTEMS NECESSARY

54
Q

GTE manufacturers

A

PRATT & WHITNEY

ROLLS ROYCE

55
Q

4 types of Gas Turbine Engines

A

TURBOJET

TURBOPROP

TURBOFAN

TURBOSHAFT

56
Q

Basic design (when frank whitlle create a gte this is also his design) turbine rotate the compressors. The thrust is produce by the exhaust gas.

A

TURBOJET

57
Q

Turbine is responsible for rotating the propeller. Propeller will become a source of thrust.

A

TURBOPROP

58
Q

Combination of turbojet & turboprop (it has a by pass(high bypass more air enter the by pass, low bypass less air enter the by pass)), Source of thrust is from the combination of propeller and exhaust thrust.

A

TURBOFAN

59
Q

Turbine rotate the power shaft. The power shaft is connected the rotor shaft.

A

TUBROSHAFT

60
Q

travel below speed of sound (less Mach 1)

A

SUBSONIC

61
Q

travel above speed of sound (greater than Mach 1 but x 5)

A

SUPERSONIC

62
Q

Turbine rotate the power shaft. The power shaft is connected the rotor shaft.

A

TURBINE ROTATE THE POWER SHAFT. THE POWER SHAFT IS CONNECTED THE ROTOR SHAFT.

63
Q

For aircraft that cannot go faster than the speed of sound.

A

SUBSONIC INLET

64
Q

Its primary function is to supply air in sufficient quantity to satisfy the requirements of the combustion burners.

A

COMPRESSOR SECTION

65
Q

A secondary function of the compressor is to supply bleed-air for various purposes in the engine and aircraft.

A

COMPRESSOR SECTION

66
Q

It is use to engine & wing de-icing because the air is hot.

A

HIGH PRESSURE VALVE

67
Q

It is use to air-conditioning.

A

LOW PRESSURE VALVE

68
Q

It is the first to rotate at starting.

A

HIGH PRESSURE VALVE

69
Q

It consists of an impeller (rotor),a diffuser (stator),and a compressor manifold.

A

CENTRIFUGAL FLOW COMPRESSORS

70
Q

It operate by taking in outside air near the hub and rotating it by means of an impeller.

A

CENTRIFUGAL FLOW COMPRESSORS

71
Q

It consists of two elements: a rotating member called the rotor, and the stator, which consists of rows of stationary blades.

A

AXIAL FLOW COMPRESSORS

72
Q

2 common types of Axial flow configuration

A

SINGLE SPOOL / SOLID SPOOL

SPLIT SPOOL / DUAL SPOOL.

73
Q

It houses the combustion process, which raises the temperature of the air passing through the engine.

A

COMBUSTION CHAMBER

74
Q

It is to burn the fuel/air mixture, thereby adding heat energy to the air.

A

COMBUSTION CHAMBER

75
Q

three types of combustion chambers

A

CAN TYPE

CAN-ANNULAR TYPE

ANNULAR TYPE

76
Q

It makes the most efficient use of the
available space.

A

ANNULARTYPE COMBUSTION CHAMBER

77
Q

It is simpler in construction, the lower curvature makes it more susceptible to warping.

A

ANNULARTYPE COMBUSTION CHAMBER

78
Q

It is to extract kinetic energy from the high- velocity gases leaving the combustion section of the engine.

A

TURBINE SECTION

79
Q

It is it must direct the flow of hot gases rearward in such a manner as to prevent turbulence and, at the same time, impart a high final or exit velocity to the gases

A

EXHAUST SECTION

80
Q

It usually refers to transferring gas power from a gas turbine to a bypass stream of air to reduce fuel consumption and jet noise.

A

BYPASS AIR

81
Q

These instruments are designed to constantly measure operating parameters relating to the aircraft’s engine.

A

ENGINE INSTRUMENTS

82
Q

It is an instrument that indicates the speed of the crankshaft of a reciprocating engine.

A

TACHOMETER (TACH)

83
Q

It can be a direct- or remote-indicating instrument, the dial of which is calibrated to indicate revolutions per minutes (rpm).

A

TACHOMETER (TACH)

84
Q

It measures the cylinder head temperature of an engine. An air-cooled engine requires a steady flow of air for cooling.

A

CYLINDER HEAD TEMP GAUGE

85
Q

It s measurement of the temperature of the exhaust gases at the exhaust manifold.

A

EXHAUST GAS TEMP GAUGE

86
Q

This can be useful to the pilot for ascertaining engine performance and for flight planning calculations.

A

FUEL FLOW METER

87
Q

This instrument is one of the most important instruments when it comes to monitoring the engine.

A

OIL GAUGE (TEMP & PRESSURE)

88
Q

It is the step-by-step procedure used to
determine the cause of a given fault and then select the best and quickest solution.

A

TROUBLESHOOTING

89
Q

To pinpoint a fault, without wasting time and money, is not an easy task.

A

TROUBLESHOOTING PROCESS

90
Q

Removing and replacing components on a trial-and-error basis can be viewed as WHAT?

A

SHOTGUN

91
Q

The prerequisites for troubleshooting are to be familiar with the normal engine condition and to be able to recognize when an engine is not operating properly.

A

SYMPTOM RECOGNITION

92
Q

once a fault or malfunction has been detected.

A

SYMPTOM ELABORATION

93
Q

When the technician has located all the symptoms of the malfunction or fault, the third step is to list, either mentally or on paper, the possible causes.

A

LISTING OF PROBABLE FAULTY FUNCTIONS

94
Q

It is an attempt to determine which functional system of the engine is actually creating the problem.

A

LOCALIZING THE FAULT

95
Q

The technician often uses test equipment to measure or indicate the correct outputs for various system components.

A

ISOLATING THE FAULT TO A COMPONENT

96
Q

Once the fault can be traced to a specific component or components, an attempt should be made to determine the cause of the failure.

A

FAILURE ANALYSIS

97
Q

Green = Operating Range
Yellow = Caution Range
Red = maximum Limit

A

GREEN = OPERATING RANGE

YELLOW = CAUTION RANGE

RED = MAXIMUM LIMIT

98
Q

It not fitted in any combustion and fitted to withstand high temperature but not combustion

A

EXHAUST MANIFOLD

99
Q

It allows us to indicate if the throttle operating properly.

A

FUEL FLOW METER

100
Q

Troubleshooting analysis follow 6 steps

A

SYMPTOM RECOGNITION

SYMPTOM ELABORATION

LISTING OF PROBABLE FAULTY FUNCTIONS

LOCALIZING THE FAULT

ISOLATING THE FAULT TO A COMPONENT

FAILURE ANALYSIS

101
Q

It consists of an outer shell and a removable liner with opening

A

CAN TYPE COMBUSTION CHAMBER

102
Q

It is the first type of combustion chamber

A

CAN TYPE COMBUSTION CHAMBER

103
Q

It operates at a high- pressure level, aiding efficient combustion at reduced power and high altitudes.

A

CAN-ANNULAR TYPE COMBUSTION CHAMBER

104
Q

It has annular casing.

A

CAN-ANNULAR TYPE COMBUSTION CHAMBER

2ND SEMESTER_PRELIM (8 decks)

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