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HFD Recruit Training > Driver Training - Important Numbers > Flashcards

Driver Training - Important Numbers Flashcards

1
Q

Windshield - No cracks greater than ___ inches or ________ cracks of any length.

A

2 inches

Intersecting

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2
Q

Leaf Springs - No more than ___ % missing, damaged, or broken.

A

25%

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3
Q

Slack Adjuster - Push-rod travel no more than ___ inch.

All slack adjusters should be ___ inch of each other.

A

1 inch

1/2 inch

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4
Q

Slack Adjuster Power Stroke - With brake pedal depressed, slack adjuster extends out no more than ___ inches.

A

2 inches

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5
Q

Drum Brake Pads - At least ___ inch of material, evenly worn

A

1/8 inch

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6
Q

Rotor Brake Pads - At least ___ inch of material

A

1/4 inch

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7
Q

Front Wheel - Tread depth no less than ___ inch

A

4/32 inch

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8
Q

Hub Oil Seal Sight Glass - Oil level at least ___.

A

Half way

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9
Q

Battery Cells - Specific gravity of a fully charged battery

A

1.260 - 1.280 (fully charged)

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10
Q

Battery Cells - Specific gravity of a 75% charged battery

A

1.225 - 1.259 (75% charged)

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11
Q

Battery Cells - Less than ___ % specific gravity requires battery to be charged

A

75%

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12
Q

Engine Oil - Level between ___ and ___

A

“Add” and “Fill”

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13
Q

Engine Oil - Color and Viscosity

A

Color

  • Amber (good)
  • Whitish (water in system)
  • Blackish (old)

Viscosity

  • Smooth
  • No feel of grit or metal particles
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14
Q

Coolant - Level should be no more than ___ inches from cap.

___ mixture of coolant and clean water

A

2 inches

50/50

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15
Q

Power Steering - Level between ___ and ___

A

“Add” and “Fill”

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16
Q

Power Steering - ___ inch to ___ inch belt deflection

A

1/2 inch to 3/4 inch belt deflection

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17
Q

Water Pump - ___ inch to ___ inch belt deflection

A

1/2 inch to 3/4 inch belt deflection

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18
Q

Alternator - ___ inch to ___ inch belt deflection

A

1/2 inch to 3/4 inch belt deflection

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19
Q

Rear Wheel - Tread depth no less than ___ inch

A

2/32 inch

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20
Q

Low Pressure Warning Device - Light/buzzer activates below ___ psi

A

60 psi

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21
Q

Oil Pressure - If no increase within ___ seconds, engine must be shut down

A

a few seconds

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22
Q

Oil Pressure - Operating engine normal indication is ___ psi to ___ psi

A

40 to 60 psi (operating)

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23
Q

Oil Pressure = Idling engine normal indication is ___ psi to ___ psi

A

5 to 20 psi (idling)

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24
Q

Ammeter/Voltmeter - If no positive rise within ___ seconds, engine must be shut down

A

a few seconds

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25
Q

Voltmeter - No less than ___ volts or within green range

A

13.75 volts

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26
Q

Clutch - Play is no more than ___ inches from the top, smooth operation

A

2 inches

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27
Q

Steering Wheel - Ensure that free play does not exceed ___ degrees or ___ inches on a 20 inch wheel

A

10 degrees or 2 inches

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28
Q

Brake Check

When starting the 7 Step Air Brake Check, the Air Gauge reads ___ psi

A

Air Gauge reads 120 psi

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29
Q

Step 1 - Static Air Pressure Loss Rate (Straight Truck)

Static Pressure Check - Pressure loss no more than ___ psi in 1 minute

A

2 psi

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30
Q

Step 1 - Applied Air Pressure Loss Rate (Straight Truck)

Applied Pressure Check - With application of brake, pressure loss no more than ___ psi in 1 minute

A

3 psi

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31
Q

Step 1 - Static Air Pressure Loss Rate (Combination Vehicle)

Static Pressure Check - Pressure loss no more than ___ psi in 1 minute

A

3 psi

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32
Q

Step 1 - Applied Air Pressure Loss Rate (Combination Vehicle)

Applied Pressure Check - With application of brake, pressure loss no more than ___ psi in 1 minute

A

4 psi

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33
Q

Step 2 - Low Air Pressure Warning Device/Light

Activates before pressure drops below ___ psi

Activates at ___ psi

A

60 psi

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34
Q

Step 3 - Emergency Brake

Emergency brake activates at around ___ to ___ psi.

Activation at ___ psi to ___ psi

A

20 to 40 psi

35
Q

Step 3 - Emergency Brake

Test the parking brake to ensure that it is ____ to ____.

Release lever is ___ to release

A

Unable to release

36
Q

Engine start is at ___ rpm until ___ psi.

A

1000 rpm

80 psi

37
Q

Step 4 - Compressor Buildup Rate

The low air warning should stop as the pressure rises over ___ psi.

Low Air Pressure Warning Device/Light goes out after ___ psi

A

60 psi

38
Q

Step 4 - Compressor Buildup Rate

Secondary Tank Pressurization

In most apparatus, the primary tank fills first and holds at ___ psi until the secondary tank begins to fill. Some apparatus have gauges labeled “___” and “___”.

Secondary Tank Pressurization - Air gauge holds at ___ psi until filled

A

80 psi

“Front” and “Back”

In both types, as pressure in the second tank catches up to the pressure in the first tank, the needles should begin to rise together.

39
Q

Step 4 - Compressor Buildup Rate

When both gauges rise, check to see that the pressure builds from ___ to ___ psi in ___ seconds or less

Gauge Reading - Movement from ___ psi to ___ psi within ___ seconds

A

85 to 100 psi

45 seconds

40
Q

Step 5 - Governor Cut-In / Cut-Out

Cut-Out

The governor should turn the compressor off at ___ to ___ psi.

Cut-Out - Air gauge stops at ___ to ___ psi with relief valve activation

A

120 to 125 psi

41
Q

Step 5 - Governor Cut-In / Cut-Out

Cut-In

Release the parking brake and fan service brakes. Air pressure should show no rise between ___ and ___ psi. Continue to fan brakes slowly until pressure drops below ___ psi.

Cut-In - After air gauge drops below ___ psi, air gauge shows increase

A

No rise between 110 and 120 psi

100 psi

42
Q

7 Step Air Brake Check

A 
1 - Air Pressure Loss Rate
2 - Low Air Pressure Warning Device/Light
3 - Emergency Brake 
4 - Compressor Buildup Rate
5 - Governor Cut-In / Cut-Out
6 - Parking Brake (engaged)
7 - Service Brake
43
Q

Engine Hour Meter - Measures actual running time to the nearest ___ hour

A

1/10 hour

44
Q

Voltmeter - With ignition switch “ON”, the voltmeter will read between ___ V to ___ V

A

12 V to 13 V

45
Q

Voltmeter - With the generator or alternator running at 800 rpm or above, there should be a reading of ___ V to ___ V

A

13.8 V to 14.4 V

46
Q

Voltmeter - Anything less than ___ V or over ___ V indicates that the regulator is not set correctly

A

Less than 13.8 V or over 15 V

47
Q

Oil Pressure Gauge - While operating the apparatus and the oil pressure drops below ___ psi, the engine must be shut down

A

Below 10 psi

48
Q

Oil Pressure Gauge - At idle speed, oil pressure should be ___ psi to ___ psi

A

5 to 20 psi

49
Q

Oil Pressure Gauge - At operating speed, oil pressure is normally ___ psi to ___ psi

A

40 to 60 psi

50
Q

Temperature Gauge - Normal water temperature range is ___ F to ___ F (operating) and ___ F to ___ F (idling)

A

160-190 F (operating)

140 to 160 F (idling)

51
Q

Temperature Gauge - Engine may be run when the coolant temperature is above ___ F, but cannot exceed ___ F

A

May be run above 190 F

Cannot exceed 205 F

52
Q

Temperature Gauge - Coolant that consistently runs over ___ F under normal conditions must be reported to the Shop

A

Over 190 F

53
Q

Temperature Gauge - Under no condition will a unit be operated with the coolant temperature above ___ F

A

Above 205 F

Water turns to steam at 212 F

54
Q

Fuel Gauge - Do not operate the tank when the fuel level is below ___

A

Half Tank

55
Q

Fuel Gauge - As much as possible, keep the fuel supply tank full to minimize ___

A

Condensation

56
Q

Fuel Pressure Gauge - Fuel pressure gauge readings should be about ___ psi at 1000 rpm and ___ psi at idle speed

A

50 psi at 1000 rpm

10 psi at idle

57
Q

Air Pressure Gauge - A range of ___ psi to ___ psi should be maintained while driving

A

100 psi to 120 psi

58
Q

Air Pressure Gauge - The apparatus must be stopped when the pressure falls and remains below ___ psi

A

100 psi

59
Q

Thermostat - Thermostat is usually set to open at ___ degrees F

A

170 degrees F

60
Q

Parking Brake - The parking/emergency brake unit requires approximately ___ pounds of air pressure before brakes can be released, at which time the warning buzzer and light will go off

A

60 pounds of air pressure

61
Q

Starter - Do not run starter for more than ___ seconds

A

10 seconds

62
Q

High idle speed is ___ rpm to ___ rpm

A

800 rpm to 1000 rpm

63
Q

Engine should warm to a minimum temperature of ___ degrees F

A

140 degrees F

64
Q

Starting (Check Gauges)- Oil pressure shows ___ psi to ___ psi within a few seconds

A

5 psi to 20 psi

65
Q

Starting (Check Gauges) - Air pressure gauge should reach ___ psi within 45 seconds when air pressure reaches 85 psi

A

100 psi

66
Q

Starting (Check Gauges) - After 10 minutes, temperature should show at least ___ degrees F

A

140 degrees F

67
Q

Starting (Check Gauges) - Unit should not be moved if air pressure drops to less than ___ psi

A

90 psi

68
Q

Road Operation - Proper cruising range is ___ rpm to ___ rpm

A

1400 rpm to 1800 rpm

69
Q

Warning Device Placement

On a one-way divided highway, place warning devices ___ feet, ___ feet, and ___ feet toward the approaching traffic

A

10 feet
100 feet
200 feet

70
Q

Warning Device Placement

If you must stop on the side of the road, you must place your emergency warning devices within ___ minutes

A

10 minutes

71
Q

Warning Device Placement
Two-lane road carrying traffic in both directions or on an undivided highway, place warning devices within ___ feet of the front or rear corners to mark the location of the vehicle and ___ feet behind and ahead of the vehicle on the shoulder or in the lane you stopped in

A

10 feet

100 feet

72
Q

Warning Device Placement

Back beyond a hill, curve, or other obstruction that prevents other drivers from seeing the vehicle within ___ feet

A

500 feet

73
Q

Steering linkage components

A

Pitman Arm
Drag Link
Steering Arm
Tie Rod End
Tie Rod
Castle Nut

74
Q

Front suspension components

A

Spring Mounts
Leaf Springs
Retaining Clips
U-Bolts
Shock Absorber

75
Q

Drive shaft components

A

Drive Shaft
Universal Joints
Couplings

76
Q

Rear suspension components

A

Spring Mounts
Leaf Springs
Retaining Clips
U-Bolts
Shock Absorber

77
Q

Flat mirror should be adjusted to allow a ___ to ___ foot view out to the side of the vehicle.

A

2 to 3 foot view

78
Q

Fire extinguisher minimum size: ___

A

2A 10BC

79
Q

Before starting brake check, ensure the following:

A

Level Ground
Wheels Chocked
Parking Brake (Anchor-Lock) Released
Area Clear
Air Gauge Reads 120 psi
Engine Off
Ignition On

80
Q

Step 6 - Parking Brake

A

Parking brake released
Transmission in lowest gear
Slowly release clutch
Attain 5 mph
Depress clutch
Apply parking brake
Brake should stop truck

81
Q

Step 7 - Service Brake

A

Parking brake released
Transmission in lowest gear
Slowly release clutch
Attain 5 mph
Depress clutch
Apply pressure to service brake
Hands on steering wheel

82
Q

Step 7 - Service Brake

Service Brake Indications

A

No unusual feel when applying service brake

Steering wheel should not pull to one side

83
Q

Vehicle Inspection

If the truck is not level, it may indicate a problem with the ___, ___, or ___.

A

Tires
Suspension
Load

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