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Piston Engines Test 2 > Test 2 > Flashcards

Test 2 Flashcards

1
Q

Cylinder Arrangement O

A

Horizontally Opposed

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2
Q

Cylinder Arrangement R

A

Radial engine

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3
Q

Cylinder Arrangement I

A

inline Engine

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4
Q

Cylinder Arrangement V

A

V Type

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5
Q

Cylinder Arrangement X

A

X Type

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6
Q

Operation Modifiers I

A

Fuel Injected

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7
Q

Operation Modifiers T

A

Turbocharged

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8
Q

Operation Modifiers S

A

Supercharged

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9
Q

Operation Modifiers A

A

Modified for Aerobatics

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10
Q

Operation Modifiers G

A

Geared Drive

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11
Q

Operation Modifiers L

A

Left hand rotation (Multi Engine)

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12
Q

Operation Modifiers H

A

Horizontal Mounting (Helicopter)

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13
Q

Operation Modifiers V

A

Vertical Mounting (helicopter)

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14
Q

Teledyne continental Motors

4 Cylinder

A

1-4-2-3

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15
Q

Teledyne Continental Motors 6 Cylinder

A

1-6-3-2-5-4

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16
Q

Textron-Lycoming 4 cylinder

A

1-3-2-4

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17
Q

Textron-Lycoming 6 Cylinder

A

1-4-5-2-3-6

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18
Q

Textron-Lycoming 8 Cylinder

A

1-5-8-3-2-6-7-4

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19
Q

14 Cylinder time row radial engines

A

add 9, subtract 5

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20
Q

18 Cylinder time row radial engines

A

add 11, subtract 7

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21
Q

Alternator/generators

A

used to create electricity from the engine for lights/communications/navigation

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22
Q

Hydraulic Pumps

A

used to create hydraulic pressure and flow from our engine for flight controls, landing gear etc

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23
Q

Propeller

A

used to generate thrust

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24
Q

Propeller governor

A

used to control propeller speed by changing blade angle

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25
Q

Propeller synchronizer

A

used to match the speed and/or blade position of two propellers

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26
Q

Vacuum/air pumps

A

used to drive instruments, de-ice systems

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27
Q

calculation of engine’s fuel consumption

A

Break horsepower X Specific fuel consumption

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28
Q

Indicator Diagram is known as a

A

p-V diagram

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29
Q

what is a indicator Diagram used for

A

visualize the process in a otto cycle

30
Q

Isothermal Process

A

lines of constant temperature curve

31
Q

Adiabatic Process

A

no heat is transferred to the gas

32
Q

Two most common ways of classifying reciprocating engines are by

A

cylinder arrangement with respect to the crankshaft and the method of cooling

33
Q

Two basic types of radial engines include

A

rotary type and static

34
Q

Rotary Radial Engines disadvantage

A

torque effect produced by the propeller made the aircraft hard to control

35
Q

Static-type radial engines

A

Crankcase is bolted to the airframe and remains stationary

36
Q

Static-type engines are reliable and have a high

A

power to weight ratio

37
Q

Static-type radial engines typical configuration consisted of

A

5-9 cylinders

38
Q

how many cylinders does a double row radial engine have and what is a problem

A

18 cylinders, hard to cool

39
Q

To help cooling

A

the rear row of cylinders is staggered

40
Q

inline engines had a disadvantage of a relatively

A

low power to weight ratio

41
Q

Inline engines were difficult to cool if air- cooled. air-cooled engines were limited to

A

4-6 Cylinders

42
Q

V type Engines

A

cinders are arranged around a single crankshaft in two in-line banks of 45,60,90 degrees offset

43
Q

V type engines produced more power than

Why

A

inline because it had two rows of cylinders which allowed for better cooling of the cylinders

44
Q

V type used what way of cooling

A

air or liquid - higher power to weight ratio when compared to equal inline engine

45
Q

Many V-type engines were

46
Q

Opposed engines

A

most popular types installed in current production

47
Q

Opposed has a even number of

48
Q

Opposed engines have a

A

high power to weight ratio

49
Q

Opposed engines also have a smaller

A

frontal area, which reduces aerodynamic drag

50
Q

Bore

A

Cylinder diameter

51
Q

Piston Stroke

A

distance travelled from TDC to BDC

52
Q

Square Engine

A

bore and stoke are equal

53
Q

Over square engine

A

bore is larger than the stroke

54
Q

under square engine

A

stroke is larger than the bore

55
Q

Induction System

A

provides clean air and fuel for reliable engine operation

56
Q

3 types of Induction systems

A

carbureted
Fuel injected
super/Turbo charged

57
Q

Air moved through the induction system, at times in cools or warms. What can form

A

Ice from the vaporization of fuel resulting in significant temperature drops

58
Q

How do we deal with this induction system

A

carburetor heat of alternate air path to melt the ice blockages

59
Q

Simple Carburetors have a

60
Q

Venturi

A

created low pressure region that draws fuel through a nozzle to spray atomized fuel into the induction air

61
Q

Modern Carburetors parts comparison

A

same parts as a simple carburetor, but add more to improve performance

62
Q

Modern Carburetors 2 major limitations

A

Intake manifolds differ in length and shape, fuel/air mixture is not distributed evenly to all cylinders

They are frequently get carburetor icing

63
Q

how does Fuel injection work

A

fuel must be provided to the nozzles under pressure so there must be a fuel pump

64
Q

Both fuel injection systems have similar parts but operation differs. they will include

A 
an engine driven fuel pump
throttle body
fuel metering unit
flow divider or spider valve
fuel nozzles
65
Q

2 main fuel injection systems used on aircraft

A

RSA, Teledyne Continental

66
Q

How does RSA system work

A

uses fuel pressure and air pressure to determine and control how much fuel is sent to the cylinders from the fuel regulator

67
Q

how does Teledyne Continental fuel injection work

A

used fuel pressure to determine and control how much fuel is sent to the cylinders from the fuel control assembly

68
Q

Turbo/supercharging

A

to get a volumetric efficiency of more than 100% requires supercharger or a turbo-supercharger

69
Q

what to turbo/superchargers do for the engine

A

allows the engine to generate higher powers, and eliminate or reduce the power loss as we climb higher into less dense air.

70
Q

exhaust system has 2 jobs - what are they

A

collect and take exhaust gasses away from the engine

absorb noise and or reduce the exhaust gas velocity to reduce noise

71
Q

Naturally aspirated exhaust systems

A

simple, sometimes just pipes to carry the exhaust overboard

usually have a muffler, a “can” containing baffles to reduce noise

Piston Engines Test 2 (1 decks)

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