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Study Material TB/ DB- Peters > Book 6- AOTM > Flashcards

Book 6- AOTM Flashcards

1
Q

what contains cylinders

A

cylinder block

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2
Q

how much heat is absorbed by cylinder rings to cylinder wall

A

1/3rd

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3
Q

what provides an efficient seal between cylinder walls and pistons

A

piston rings

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4
Q

The up-and-down reciprocating movement of a piston is moved by what

A

Crankshaft and connecting rod

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5
Q

Are there valves on a two stroke?

A

No

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6
Q

What stores have energy of rotation when torque on a crankshaft is greater than average in releases energy when torches less than average

A

Flywheel

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7
Q

What is the first stroke of an engine that goes down words

A

Intake stroke

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8
Q

What is the second stroke that begins with the piston is in the bottom and moves upward

A

Compression stroke

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9
Q

Why does the fuel air mixture get compressed?

A

Compressing, fuel and air makes it more combustible

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10
Q

What is the stroke? We’re fuel air mixture is ignited. Buy an electric spark.

A

Power stroke

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11
Q

After if you want air mixture has burned, he gets cleared from the cylinder. What type of stroke is this

A

Exhaust stroke

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12
Q

Instead of vowels, what does a two-stroke have?

A

Ports

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13
Q

In a four stroke when does the air and fuel mixture mix?

A

When it enters the cylinder

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14
Q

In a two-stroke when does the air fuel mixture mix?

A

At the carburetor attached to the inlet before it enters the cylinder

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15
Q

A two-stroke is less efficient because a portion of what mixes with burn gases, and carried out the exhaust port

A

The fresh fuel air mixture ratio

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16
Q

What engine has no carburetor or throttle valve and has same quantity of air regardless of load on engine?

A

Diesel

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17
Q

On gasoline engine what is the psi in the compression stroke?

A

70 to 125 psi

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18
Q

What is the compression psi in a diesel compression stroke?

A

Approximately 500 psi

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19
Q

When is fuel injected in a diesel engine?

A

Near the end of the compression stroke

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20
Q

If a diesel doesn’t have a spark plug, how does the power stroke happened?

A

Compression produces high temperature for spontaneous ignition of the fuel

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21
Q

He gasoline engine exhaust at about 1300°, what is a diesel engine exhaust

A

900°

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22
Q

What is used in diesel engines to assist in starting?

A

Glow plugs

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23
Q

Gasoline engines speed, and power are controlled by the amount of what from the carburetor

A

Amount of air admitted into carburetor

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24
Q

Diesel engines the speed and power is controlled by what injected into the cylinder

A

Quantity of fuel

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25
Q

What is known as the diameter of a cylinder?

A

Bore

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26
Q

What is known as the distance a piston moves in a cylinder?

A

Stroke

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27
Q

When referencing both bore and stroke what is always given first

A

Bore

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28
Q

What is defined as volume in a cylinder with piston at bottom divided by volume of cylinder with piston at top

A

Compression ratio

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29
Q

Increasing compression ratio does what to power output of engine

A

Increases power output

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30
Q

What is defined as the movement of a body against an opposing force in foot pounds

A

Work

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31
Q

What is defined as the ability to do work?

A

Energy

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32
Q

What is power?

A

The rate of work

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33
Q

What is a definite measure of amount of work? ( compared from a boy to ____ to an automobile)

A

Horsepower

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34
Q

Who invented the term horsepower in 1780s

A

James Watt

35
Q

What does a Prony Brake or Dynanometer measure

A

Horsepower

36
Q

What is the difference between brake horsepower gross and net

A

Gross brake horsepower is the advertised horsepower with accessories removed

37
Q

What is determined by the amount of electric seat used based on one horsepower equals 746 watts

A

Electrical horsepower

38
Q

What is the twisting or turning affect measured in pound, feet, not foot pounds

A

Torque

39
Q

What is directly related to torque and speed

A

Horsepower 

40
Q

What is proper mixture ratio for starting an engine using fuel to air

A

15 pounds of air to 1 pound of gasoline

41
Q

What is volatility?

A

Ease of which a liquid vapor rises

42
Q

What is the ability of fuel to resist detonation?

A

Octane rating

43
Q

A higher octane rating allows for greater what quality

A

Anti-knock quality

44
Q

What is the igniting of fuel charge before the regular ignition

A

Preignition

45
Q

What is lugging?

A

When a engine is operating below recommended operating range

46
Q

A carburetor is operated it through what effect

A

Venturi effect

47
Q

What is the purpose of oil in an engine

A

To lubricate, prevent metal to metal, allows for a seal

48
Q

What is viscosity?

A

Resistance of flow

49
Q

What is an S. A. E. Number

A

Society of automotive engineers, to rate the viscosity

50
Q

What is the “full force-feed lubrication system” used on?

A

Heavy duty fire department apparatus

51
Q

What is placed in an oil line above the pump that removes the impurities of the oil that has picked up by recirculating through the engine?

A

Oil Filter

52
Q

How does coolant cool down and

A

Through passages in the cylinder, head and block where coolant circulates

53
Q

What regulates the engine temperature by automatic control in the amount of coolant that flows from the engine block to the radiator

A

Thermostat

54
Q

What is part of the cooling system that has a spring loaded pressure valve to relieve extra pressure in the system to prevent a vacuum when the engine cools?

A

Radiator pressure cap

55
Q

Belt tension will deflect, approximately how much of an inch

A

1/2”

56
Q

What type of pump is a water pump?

A

Centrifugal

57
Q

On the control pedestal, Is the hoist lever on the left, middle, or right?

A

Right

58
Q

On the control pedestal, is the rotation lever on the left middle or right

A

Middle

59
Q

On the control pedestal, is the extension lever to the left, middle, or right

A

Left

60
Q

This button breaks the electrical circuit to the solenoid and causes the engine to run an idle speed, allowing for slow movement of the aerial

A

Solenoid cut out button

61
Q

According to book 6, hydraulic system, pressure gauges on the control pedestal will read ___ and___ when all levers are in neutral

A

60 and 125 pounds

62
Q

According to book 6 win, any lever is moved, the hydraulic system pressure gauges will read between ___ and ___

A

800 and 900 pounds pressure

63
Q

What indicates the angle of the aerial ladder in relationship to horizontal?

A

Inclinometer

64
Q

According to book 6, on a load indicator, what does red, green, yellow mean?

A

Red= danger
Green = safe
Yellow = caution

65
Q

What three angle indicators do you have?

A

Grade, side, slope, elevation

66
Q

What is the best climbing angle for an aerial?

A

70 to 80°

67
Q

According to book 6 curbs are approximately______ feet from a building

A

11 feet

68
Q

An aerial is made of what type of construction

A

Cantilever bridge construction

69
Q

When operating on a steep grade, you should throw the Ariel from a___ slope spot

A

Downslope

70
Q

What is the ideal jackknife degrees?

A

60°

71
Q

When a truck is jackknifed to 30 degrees, the truck stability is more than ___ as great than when in in-line position

A

Twice as stable

72
Q

On a incline what wheels should you chock?

A

Behind all four wheels on the steering axle’s

73
Q

What degree should you hoist the aerial to before operating the other lovers?

A

45° and an angle someone greater than what is required

74
Q

Safe driving is made up of what percentages

A

20% safe vehicle
20% good physical condition of driver
60% good attitude

75
Q

What is the tendency to steer towards the spot that your attention is focused?

A

Focus fixation

76
Q

What are the four things that make up a top notch driver?

A
  1. Self control.
  2. Acceptance of responsibility.
  3. Good judgment.
  4. Good sportsmanship.
77
Q

What is your perception and reaction time?

A

3/4 of a second

78
Q

When should you signal for a turn?

A

100 feet before the turn

79
Q

When did in the big picture? How far should you look ahead on rural roads?

A

1/2 mile

80
Q

Sirens in an intersection with buildings are ____ less audible then straightaways

A

2/3 less

81
Q

What is the total combined perception reaction time?

A

1 1/2 seconds

82
Q

Over speeding is when the engine rpm exceeds ____ percent of peak engine speed

A

90%

83
Q

What is proper hand position for driving, according to book 6

A

10 and 2 o’clock on the wheel

Study Material TB/ DB- Peters (77 decks)

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