5 6 12 Pwrplnt

Front 1

In a reciprocating engine, ___ air is filtered to support reliable engine operation and a long service life

Back 1

Induction

Front 2

___ systems are designed to limit the formation of ice and provide a way to remove any that develops

Back 2

Induction

Front 3

The types of ice that form in the induction system of a reciprocating engine include ___ ___, ___ and ___ ice

Back 3

Fuel evaporation, throttle and impact ice

Front 4

Supercharger and turbocharger systems increase the volume of air that is provided to a cylinder for ___

Back 4

Combustion

Front 5

___ altitude is the highest altitude at which a reciprocating engine can attain full power. A supercharger or turbocharger typically raises the ___ altitude of an engine

Back 5

Critical

Front 6

The induction system consists of these four major components

Back 6

Air scoop

Air filter

Fuel metering device

Intake manifold

Front 7

What three types of air filter systems have been used on aircraft

Back 7

Flocked screen

Paper

Polyurethane foam

Front 8

Reciprocating engine induction systems can be broadly classified as

Back 8

Naturally aspirated

Supercharged

Front 9

Some Modern horizontally-opposed engines that use float carburetors have the carburetor mounted directly to the bottom of the engine ___ ___, and then induction pipes pass Through the warm oil

Back 9

Oil sump

Front 10

Two advantages of passing the fuel-air mixture through the engine oil sump are

Back 10

Cools the oil

Warms the induction air

Front 11

Air supplied for carburetor Heat __ __ filtered

Back 11

Is not

Front 12

The carburetor heat control should always be in the ___ position when operating on Sandy or Dusty services

Back 12

Cold

Front 13

Warm air is ___ dense than cool air.

Back 13

Less

Front 14

Engines equipped with fuel injection systems are not susceptible to carburetor icing, but are equipped with an ___ air system to allow air flow in case of filter clogging or impact icing

Back 14

Alternate

Front 15

Alternate air doors may be operated ___ or ___

Back 15

Manually or automatically

Front 16

Internally driven superchargers are located ___ of the fuel metering device

Back 16

Downstream

Front 17

Manifold pressure of a turbocharged engine is measured on the ___ side of the throttle valve

Back 17

Engine

Front 18

An aircraft engine who's rated horsepower has been increased by using a supercharger is called a ___ ___ engine

Back 18

Ground boosted

Front 19

An aircraft whose engines are equipped with a 2-speed supercharger will use the ___blower position for takeoff

Back 19

Low

Front 20

An aircraft engine that can develop its rated sea level horsepower to a given altitude is called an ___ engine

Back 20

Altitude

Front 21

Superchargers which are powered by the energy of the exhaust gases are called ___

Back 21

Turbochargers

Front 22

The turbocharger is located ___ of the fuel metering device

Back 22

Upstream

Front 23

The three sections of a Turbocharger are

Back 23

Compressor housing

Bearing housing

Turbine housing

Front 24

"The turbocharger shaft is supported in ball bearings" this statement is

Back 24

False

Front 25

Two important functions of the oil that flows through the center housing of a Turbocharger are

Back 25

Lubricate the bearings

Remove Heat

Front 26

The valve that is used to control the amount of exhaust gases routed to the turbocharger is known as a ___ ___

Back 26

Waste gate

Front 27

When the wastegate is fully closed ___ of the exhaust gases must pass through the turbocharger

Back 27

All

Front 28

Turbocharger bearings are cooled buy a continuous flow of engine ___

Back 28

Oil

Front 29

Another name for turbocharger discharge pressure is ___ ___ pressure

Back 29

Upper Deck

Front 30

The wastegate actuator used with a Turbocharger system controlled with an absolute pressure controller is ___ by oil pressure acting on the piston

Back 30

Closed

Front 31

The capillary tube restrictor is on the ___ oil line inside the wastegate actuator

Back 31

Inlet

Front 32

A ratio controller of a Turbocharger system is installed in ___ with an absolute pressure controller

Back 32

Parallel

Front 33

The variable automatic pressure controller (vapc) maintains a constant Upper Deck pressure for each position of the ___ valve

Back 33

Throttle

Front 34

The two pressures sensed by the ratio controller are

Back 34

Ambient

Manifold air pressure

Front 35

The ratio controller controls the manifold pressure at ___ altitudes

Back 35

High

Front 36

Should the pressurer-ratio controller fail, the ___ ___ ___, found in most systems, will prevent overboosting

Back 36

Pressure relief valve

Front 37

Engines using turbochargers that are designed to operate from sea level up to their critical altitude are referred to as ___ ___ ___ engines

Back 37

Sea level boosted

Front 38

The three basic components of a sea level boosted turbocharger system are

Back 38

Exhaust bypass valve

Density controller

Differential pressure controller

Front 39

The density controller regulates bleed oil only at the ___ ___ position

Back 39

Full Throttle

Front 40

The ___ ___ on a turbocharger used for pressurizing an aircraft limits the amount of air that can be supplied to the cabin

Back 40

Sonic Venturi

Front 41

Rapid throttle movement can cause a temporary over Roost known as an ___

Back 41

Overshoot

Front 42

The differential pressure controller produces unstable condition known as ___

Back 42

Bootstrapping

Front 43

Bootstrapping ____ detrimental to engine life

Back 43

Is not

Front 44

A reciprocating engine in which exhaust driven turbines are coupled to the engine crankshaft is known as a _______ system

Back 44

Turbo compound

Front 45

The ___ ___ on a turbojet engine provides a large volume of smooth, high-energy air to the compressor.

Back 45

Air Inlet

Front 46

At ___ speeds, air flowing through the ducts of a turbine engine behaves according to Bernoulli's principle

Back 46

Subsonic

Front 47

Turboprop and turboshaft engine use different types of ___ to remove particles by changing the direction of airflow before the compressor stage.

Back 47

Separators

Front 48

Inlet anti-ice systems direct bleed air to the ___ ___ of the inlet duct to prevent or remove the formation of ice

Back 48

Leading edge

Front 49

In a ___ duct air velocity decreases and air pressure ___

Back 49

Divergent

Increases

Front 50

The air entering the first stage of compression on a supersonic airplane must be at a speed below ___

Back 50

Mach 1

Front 51

In flight, the forward motion of the aircraft produces an increase in the intake pressure known as the ___ ___

Back 51

Ram effect

Front 52

The inlet for a turbofan is similar in design to that for a turbojet except that it discharges only a portion of the air into the engine, the remainder must pass through the ____

Back 52

Fan

Front 53

Supersonic Inlet ducts must be designed to operate in 3 speed modes

Back 53

Subsonic

Transsonic

Supersonic

Front 54

Supersonic aircraft will use a ___ ___ inlet duct

Back 54

Converging diverging

Front 55

The inlet duct on a subsonic turbo jet powered aircraft is a form of ___ duct

Back 55

Diverging

Front 56

Wind turbine engines are calibrated on a test stand, a ___ Inlet is typically installed

Back 56

Bellmouth

Front 57

Helicopter operations may require the use of a ___ ___ on the inlet of the engine

Back 57

Particle separator

Front 58

Muffler baffles disrupt the ___ energy of aircraft exhaust

Back 58

Noise

Front 59

Because the muffler is used as a heat exchanger to heat small aircraft powered by reciprocating engines, ___ must be inspected for cracks to ensure that carbon monoxide does not enter the cabin

Back 59

Mufflers

Front 60

Only approved repair facilities May perform ___ repairs to exhaust system components

Back 60

Welding

Front 61

The two general types of exhaust systems used on reciprocating aircraft engines are

Back 61

Short stack

Collector

Front 62

___ allows for expansion and contraction of the exhaust system

Back 62

Bellows

Front 63

The purpose of the ___ surrounding the muffler is to capture heat for other systems

Back 63

Shroud

Front 64

Spring loaded ___ ___ allow for movement without leakage, and slight misalignment of exhaust components

Back 64

Ball joints

Front 65

Exhaust ____ use the velocity of the exciting exhaust gases to produce a Venturi effect

Back 65

Augmentors

Front 66

Exhaust system parts should never be marked with a ___ pencil

Back 66

Lead

Front 67

A crack on an exhaust system component will often show as a ___ gray or ___ black streak on the outside of the park

Back 67

Flat

Sooty

Front 68

Exhaust system failure almost always creates what hazards?

Back 68

Fire and carbon monoxide

Front 69

Carbon buildup in the wastegate unit of a turbocharged engine is often referred to as ___ deposits

Back 69

Coke

Front 70

The turbocharger system places a ___ pressure on the exhaust components

Back 70

Higher

Front 71

An exhaust nozzle on a turbine engine controls the ____ and ____ of exiting

Back 71

Density and velocity

Front 72

Thrust reverser redirect ___ to slow an aircraft on Landing or to enable it to back up during Taxi

Back 72

Exhaust

Front 73

A greater amount of thrust can be obtained from a turbojet engine if the exhaust gases are discharged from the aircraft at a velocity ___ than that at the turbine outlet

Back 73

Higher

Front 74

Subsonic engines will use a ___ jet nozzle

Back 74

Converging

Front 75

A ___ tailpipe is used on most subsonic aircraft

Back 75

Convergent

Front 76

Supersonic aircraft utilize a ___ ___ type of tail pipe

Back 76

Converging diverging

Front 77

Turboprop exhaust gases provide ___ additional thrust

Back 77

Very little

Front 78

The three functions of thrust reversers are

Back 78

Aid in breaking

Provide breaking (emergency)

Back an aircraft out of a parking spot

Front 79

A Thrust reverser system can provide about ___% of the total braking Force Under normal conditions

Back 79

20%

Front 80

There are two types of thrust reversers; ___ blockage and ___ blockage

Back 80

Mechanical blockage

Aerodynamic blockage

Front 81

Hi bypass turbo Jets frequently use only ___ stream air for reverse thrust

Back 81

Cold

Front 82

Unmixed exhaust turbofan engines may have both ___ stream and ___ stream reversers

Back 82

Hot stream and Cold Stream

Front 83

Somehow I bypass engines may only have ___ stream reversing

Back 83

Cold

Front 84

Older engine installations may have ___ ___ retrofitted in order to reduce noise to acceptable levels

Back 84

Hush kits

Front 85

The noise generated by a turbofan is ___ then that generated by a turbo jet

Back 85

Less

Front 86

Propellers convert rotational engine power to ___ in both reciprocating and with turboshaft engines

Back 86

Thrust

Front 87

Propeller ___ is the theoretical distance that a propeller advances forward in a single Revolution

Back 87

Pitch

Front 88

A ___ propeller is located on the front end of an engine and pulls and aircraft forward

Back 88

Tractor

Front 89

A ___ propeller is located on the app and of an engine and pushes an aircraft forward

Back 89

Pusher

Front 90

___ ___ propellers are designed with a particular performance characteristic. Based on desired aircraft operations and performance, a pilot can choose either a climb or Cruise propeller

Back 90

Fixed pitch

Front 91

___ ___ propellers change blade angle to maintain an engine speed selected by the pilot and controlled by a governor

Back 91

Constant speed

Front 92

____ propellers rotate the the blades straight into the wind. If the engine stops turning during flight, this position reduces drag and enables the aircraft to Glide farther

Back 92

Feathering

Front 93

____ pitch propellers unable an aircraft to reduce its Landing roll, in addition reversible pitch propellers enable an aircraft to back up during Taxi

Back 93

Reversible

Front 94

The basic function of a propeller on an airplane is to convert engine torque into ___

Back 94

Thrust

Front 95

Propeller blade angle is angle between the chord of the propeller blade and the ___ of ___

Back 95

Plane of rotation

Front 96

The flat surface of a propeller blade is called the ___ of the blade

Back 96

Face

Front 97

Propeller blade stations are measured in inches from the ___ of the ___

Back 97

Center of the hub

Front 98

A ___ ___ is designed primarily to increase the flow of cooling air to the engine nacelle

Back 98

Blade cuff

Front 99

The gradual twist in the propeller blade from shank to tip is known as ___ ___

Back 99

Pitch distribution

Front 100

I'm a given propeller blade, the blade angle nearest The Hub will be the ___

Back 100

Highest

Front 101

The six forces that act on a rotating propeller are

Back 101

Centrifugal force

Thrust bending Force

Torque bending Force

Aerodynamic twisting moment

Centrifugal twisting moment

Vibration

Front 102

Thrust bending Force tries to bend the tip of the propeller blade ___

Back 102

Forward

Front 103

Torque bending Force tries to bend the propeller blades in the ___ direction of their rotation

Back 103

Opposite

Front 104

Aerodynamic twisting moment tries to move the propeller blades towards a ___ pitch angle

Back 104

High

Front 105

Centrifugal twisting moment tries to move the propeller blade towards a ___ pitch angle

Back 105

Low

Front 106

"Normally, aerodynamic twisting moment is greater than centrifugal twisting moment" this statement is ___

Back 106

False

Front 107

Because of vibration problems encountered with certain engine / propellor combinations, the critical range is indicated on the tachometer by a ___

Back 107

Red arc

Front 108

The ___ pitch is the distance, in inches, that a propeller would move forward in a medium that allowed no slip

Back 108

Geometric

Front 109

The ___ pitch is the distance, in inches, that an aircraft actually moves forward in one revolution of the propeller

Back 109

Effective

Front 110

The difference between geometric pitch and effective pitch is called ___

Back 110

Slip

Front 111

___ propellors are those mounted on the Upstream end of a drive shaft in front of the supporting structure

Back 111

Tractor

Front 112

Automatic propellers are usually termed ___ ___ propellors

Back 112

Constant speed

Front 113

Propeller blades are constructed from ____ ___, ____ ___ or ___ ___

Back 113

Laminated wood, aluminum alloys or composite materials

Front 114

Propeller designations often contain coded information about propellor ____ and ___

Back 114

Characteristics and performance

Front 115

An aircraft manufacturer May specify two models of a propeller for the same installation, a ___ and a ___ propeller

Back 115

Climb and cruise