AC POWERPLANT OVERHAUL & AMP; TROUBLESHOOTING

Question 1

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

Answer 1

RECIPROCATING ENGINE

Question 2

Two types of reciprocating engine

Answer 2

LYCOMING ENGINE

CONTINENTAL ENGINE

Question 3

It has the camshaft above the crankshaft.

Answer 3

LYCOMING ENGINE

Question 4

It has the camshaft below the crankshaft.

Answer 4

CONTINENTAL ENGINE

Question 5

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.

Answer 5

OTTO CYCLE

Question 6

4 strokes-5 events cycle

Answer 6

INTAKE STROKE (TDC TO BDC)

COMPRESSION STROKE (BDC TO TDC)

COMBUSTION

POWER STROKE (TDC TO BDC)

EXHAUST STROKE (BDC TO TDC)

Question 7

Basic major components of a reciprocating engine

Answer 7

CRANKCASE

CYLINDERS

PISTONS

CONNECTING RODS

VALVES

VALVE OPERATING MECHANISM

CRANKSHAFT

Question 8

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

Answer 8

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

Question 9

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

Answer 9

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

Question 10

The foundation of an engine.

Answer 10

CRANKCASE

Question 11

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

Answer 11

BEARING

Question 12

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

Answer 12

BEARING

Question 13

Main purpose of a bearing

Answer 13

TO REDUCE THE FRICTION OF MOVING PARTS

Question 14

Types of bearings

Answer 14

PLAIN BEARING

BALL BEARING

ROLLER BEARING

Question 15

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

Answer 15

PLAIN BEARINGS

Question 16

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

Answer 16

PLAIN BEARINGS

Question 17

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

Answer 17

BALL BEARINGS

Question 18

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

Answer 18

BALL BEARINGS

Question 19

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.

Answer 19

ROLLER BEARING

Question 20

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

Answer 20

ROLLER BEARING

Question 21

It is the backbone of the reciprocating engine.

Answer 21

CRANKSHAFT

Question 22

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

Answer 22

CRANKSHAFT

Question 23

Main parts of a crankshaft

Answer 23

MAIN JOURNAL

CRANKPIN

CRANK CHEEK

COUNTERWEIGHTS & DAMPERS

Question 24

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

Answer 24

MAIN JOURNAL

Question 25

The crankpin can also be called WHAT?

Answer 25

CONNECTING-ROD BEARING JOURNAL

Question 26

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

Answer 26

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

Question 27

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

Answer 27

CRANK CHEEK

Question 28

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

Answer 28

CRANK CHEEK

Question 29

It is provide static balance for a crankshaft.

Answer 29

COUNTERWEIGHT

Question 30

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

Answer 30

DYNAMIC DAMPER

Question 31

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

Answer 31

CONNECTING ROD

Question 32

The end of the rod which connects to the crankshaft

Answer 32

LARGE END CRANKPIN END

Question 33

The end which connects to the piston pin

Answer 33

SMALL END PISTON-PIN END

Question 34

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

Answer 34

PISTON

Question 35

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

Answer 35

GROOVES

Question 36

Two types of piston rings

Answer 36

COMPRESSION RINGS OIL RINGS

Question 37

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

Answer 37

COMPRESSION RING

Question 38

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

Answer 38

OIL RINGS

Question 39

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

Answer 39

OIL RINGS

Question 40

It joins the piston to the connecting rod.

Answer 40

PISTON PINS

Question 41

Piston pins sometimes called WHAT?

Answer 41

WRIST PIN

Question 42

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

Answer 42

PISTON PINS

Question 43

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

Answer 43

CYLINDER OF AN INTERNAL-COMBUSTION ENGINE

Question 44

Cylinder assembly components

Answer 44

CYLINDER BARREL CYLINDER HEAD VALVE GUIDES VALVE ROCKER ARM SUPPORTS VALVE SEATS SPARK PLUG BUSHINGS COOLING FINS

Question 45

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.

Answer 45

CYLINDER BARREL

Question 46

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

Answer 46

CYLINDER HEAD

Question 47

It provides mounting pads for the accessory units.

Answer 47

ACCESSORY SECTION

Question 48

It also serves as part of the lubrication system.

Answer 48

ACCESSORY CASE

Question 49

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

Answer 49

GAS TURBINE ENGINE

Question 50

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

Answer 50

GAS TURBINE ENGINE

Question 51

It is typically located at the front of the compressor.

Answer 51

AIR INLET

Question 52

He credited for inventing design of gas turbine engine

Answer 52

FRANK WHITTLE

Question 53

gas turbine engine consists

Answer 53

AN AIR INLET COMPRESSOR SECTION COMBUSTION SECTION TURBINE SECTION EXHAUST SECTION ACCESSORY SECTION THE SYSTEMS NECESSARY

Question 54

GTE manufacturers

Answer 54

PRATT & WHITNEY ROLLS ROYCE

Question 55

4 types of Gas Turbine Engines

Answer 55

TURBOJET TURBOPROP TURBOFAN TURBOSHAFT

Question 56

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.

Answer 56

TURBOJET

Question 57

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

Answer 57

TURBOPROP

Question 58

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.

Answer 58

TURBOFAN

Question 59

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

Answer 59

TUBROSHAFT

Question 60

travel below speed of sound (less Mach 1)

Answer 60

SUBSONIC

Question 61

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

Answer 61

SUPERSONIC

Question 62

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

Answer 62

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

Question 63

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

Answer 63

SUBSONIC INLET

Question 64

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

Answer 64

COMPRESSOR SECTION

Question 65

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

Answer 65

COMPRESSOR SECTION

Question 66

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

Answer 66

HIGH PRESSURE VALVE

Question 67

It is use to air-conditioning.

Answer 67

LOW PRESSURE VALVE

Question 68

It is the first to rotate at starting.

Answer 68

HIGH PRESSURE VALVE

Question 69

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

Answer 69

CENTRIFUGAL FLOW COMPRESSORS

Question 70

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

Answer 70

CENTRIFUGAL FLOW COMPRESSORS

Question 71

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

Answer 71

AXIAL FLOW COMPRESSORS

Question 72

2 common types of Axial flow configuration

Answer 72

SINGLE SPOOL / SOLID SPOOL SPLIT SPOOL / DUAL SPOOL.

Question 73

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

Answer 73

COMBUSTION CHAMBER

Question 74

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

Answer 74

COMBUSTION CHAMBER

Question 75

three types of combustion chambers

Answer 75

CAN TYPE CAN-ANNULAR TYPE ANNULAR TYPE

Question 76

It makes the most efficient use of the available space.

Answer 76

ANNULARTYPE COMBUSTION CHAMBER

Question 77

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

Answer 77

ANNULARTYPE COMBUSTION CHAMBER

Question 78

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

Answer 78

TURBINE SECTION

Question 79

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

Answer 79

EXHAUST SECTION

Question 80

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

Answer 80

BYPASS AIR

Question 81

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

Answer 81

ENGINE INSTRUMENTS

Question 82

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

Answer 82

TACHOMETER (TACH)

Question 83

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

Answer 83

TACHOMETER (TACH)

Question 84

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

Answer 84

CYLINDER HEAD TEMP GAUGE

Question 85

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

Answer 85

EXHAUST GAS TEMP GAUGE

Question 86

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

Answer 86

FUEL FLOW METER

Question 87

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

Answer 87

OIL GAUGE (TEMP & PRESSURE)

Question 88

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

Answer 88

TROUBLESHOOTING

Question 89

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

Answer 89

TROUBLESHOOTING PROCESS

Question 90

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

Answer 90

SHOTGUN

Question 91

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.

Answer 91

SYMPTOM RECOGNITION

Question 92

once a fault or malfunction has been detected.

Answer 92

SYMPTOM ELABORATION

Question 93

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.

Answer 93

LISTING OF PROBABLE FAULTY FUNCTIONS

Question 94

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

Answer 94

LOCALIZING THE FAULT

Question 95

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

Answer 95

ISOLATING THE FAULT TO A COMPONENT

Question 96

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

Answer 96

FAILURE ANALYSIS

Question 97

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

Answer 97

GREEN = OPERATING RANGE YELLOW = CAUTION RANGE RED = MAXIMUM LIMIT

Question 98

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

Answer 98

EXHAUST MANIFOLD

Question 99

It allows us to indicate if the throttle operating properly.

Answer 99

FUEL FLOW METER

Question 100

Troubleshooting analysis follow 6 steps

Answer 100

SYMPTOM RECOGNITION SYMPTOM ELABORATION LISTING OF PROBABLE FAULTY FUNCTIONS LOCALIZING THE FAULT ISOLATING THE FAULT TO A COMPONENT FAILURE ANALYSIS

Question 101

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

Answer 101

CAN TYPE COMBUSTION CHAMBER

Question 102

It is the first type of combustion chamber

Answer 102

CAN TYPE COMBUSTION CHAMBER

Question 103

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

Answer 103

CAN-ANNULAR TYPE COMBUSTION CHAMBER

Question 104

It has annular casing.

Answer 104

CAN-ANNULAR TYPE COMBUSTION CHAMBER