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Idaho CLP > clp study > Flashcards

clp study Flashcards

1
Q

what is the most important reason for doing a vehicle inspection?

A

Safety

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2
Q

What things get checked during a trip?

A

instruments, air/temp/pressure gauges, ammeter/voltmeter, mirrors, tires, cargo, lights

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3
Q

Name some key steering parts

A

wheel, tie rod, shaft, gear box, pitman arm, drag link, knuckle, spindle.

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4
Q

cracked or broken spring hangers are a defect of the _______ system?

A

suspension

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5
Q

what three kinds of emergency equipment MUST you have?

A

spare fuses, three red reflective triangles, fire extinguisher

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6
Q

what is the minimum tread depth on front tires?

A

4/32

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7
Q

what is the minimum tread depth on rear tires?

A

2/32

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8
Q

air pressure should build from 50 to 90 with in how many minutes?

A

3

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9
Q

what should wheel bearing seals be checked for?

A

leaks

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10
Q

steering wheel play must not exceed ______ degrees?

A

10

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11
Q

what two types of tires CANNOT be used in conjunction?

A

Radial and bias-ply

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12
Q

the trailer brake valve or (Johnson bar) activates the brakes on the trailer and NOT the tractor. True or false?

A

true. it only applies the service brakes to the trailer gradually

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13
Q

cargo must be inspected within the first 50 miles and every ______miles or ____hrs, whichever comes first.

A

150 miles, 3hrs

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14
Q

how do you test hydraulic brakes for leaks?

A

pump brake pedal 3 times
apply pressure and hold for 5 seconds
pedal should not move

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15
Q

you should avoid _______whenever you can.

A

backing

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16
Q

if you must back what two things can make it as safe as possible?

A

back to the drivers side, use a helper

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17
Q

how do you start moving when parked on a hill, without moving backward?

A

partially engage the clutch before taking right foot off brake

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18
Q

what is the most important hand signal you and a helper can agree on?

A

stop

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19
Q

two special conditions where you should downshift are?

A

before going down a hill

before entering a curve.

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20
Q

when should you downshift automatic transmissions?

A

when going down grades

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21
Q

retarders keep you from skidding when the road is slippery. true or false?

A

false

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22
Q

when should you turn off retarders?

A

when drive wheels have poor traction.

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23
Q

what are the two ways to know when to shift?

A

engine speed, road speed

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24
Q

how long do you have to put out warning devices if stopped on a shoulder?

A

ten minutes.

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25
Q

what are two main things to look for ahead?

A

vehicles entering the highway, your lane, turning.

brake lights

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26
Q

in safe driving, communicating also means?

A

signaling intentions.

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27
Q

where should you place reflectors when stopped on a divided highway?

A

10, 100, 200 feet behind you for approaching traffic

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28
Q

what three things add up to total stopping distance?

A

perception, reaction, & braking distance

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29
Q

if you go twice as fast your stopping distance increases by 2 or 4 times?

A

4

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30
Q

empty trucks brake better than loaded trucks. true or false?

A

false

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31
Q

reduce speed to _____ on wet roads and _____ on packed ice.

A

1/3 & 1/2 or more

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32
Q

how can you regain control when hydroplaning?

A

release the accelerator and press the clutch

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33
Q

what is the safest speed to drive in heavy traffic?

A

The speed of other vehicles (the flow of traffic)

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34
Q

hydroplaning is more likely when the tire pressure is _____?

A

Low

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35
Q

you should shift to a lower gear before or after starting a long down grade?

A

Before

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36
Q

how do you find how many seconds of following distance you have?

A

wait until the car ahead of you passes a landmark and count the seconds until you reach it.

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37
Q

if you are driving a 30 ft vehicle at 55 mph, how many seconds of following distance should you allow?

A

4

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38
Q

why is it unwise to swing left before turning to the right?

A

another vehicle may try to pass on the right and get pinched

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39
Q

what is a hazard?

A

a possible danger

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40
Q

a red triangle with an orange center is the symbol for?

A

slow moving vehicle

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41
Q

when should you eliminate all in-vehicle distractions?

A

before driving begins

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42
Q

________ driving is operating a motor vehicle in a selfish, bold, or pushy manner.

A

aggressive

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43
Q

what four things can you do when dealing with aggressive drivers?

A

avoid eye contact
ignore gestures
report to authorities
call police

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44
Q

in hot weather, check tire pressure about ever ____ hrs or ____miles.

A

2, 100

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45
Q

drivers of modern trucks should go down in a _____ gear than they came up in

A

Lower

46
Q

when going down long steep grades you should brake _____mph below your safe speed then let off the brake.

A

5

47
Q

how long does it take a typical tractor -trailer to cross a double track?

A

15 seconds

48
Q

vehicle s required to stop at cross-buck signs must stop no closer than 15 and no more than _____ feet from tracks.

A

50

49
Q

low boys, car carriers, moving vans, possum belly, livestock trailers, single axle tractor pulling long trailers with landing gear for a tandem axle trailer all have one thing in common in a certain driving situation. What is it?

A

They get stuck on raised railroad crossings.

50
Q

what is brake fade?

A

more power must be applied to brakes to get the same stopping power due to overheating

51
Q

stopping is not always the best option in an emergency. true or false?

A

true

52
Q

when executing a quick turn you should never ?

A

apply the brake

53
Q

if a tire blows out you must remember to stay______?

A

off the brakes and hold the wheel firmly

54
Q

when returning to the road in lieu of stopping, you must hold the wheel tightly and ________, do not _________ on the road

A

turn sharply, edge back gradually

55
Q

two ways to stop quickly and safely are to use ?

A

controlled braking and stab braking

56
Q

the type of braking that occurs when you lock up the wheel then re-apply when they roll free again is called?

A

stab braking

57
Q

what are two reasons hydraulic brakes fail?

A

loss of hydraulic pressure and fade

58
Q

skids caused by ______________ happen most in ice and snow

A

Acceleration

59
Q

to regain traction in slippery conditions?

A

push the clutch in

60
Q

what are the four ways to cause a skid?

A

over braking
over steering
over acceleration
driving to fast

61
Q

to correct a drive wheel braking skid?

A

stop braking

counter steer

62
Q

the 3 basic steps to be taken at any accident are

A

protect the area
notify authorities
care for the injured

63
Q

what two things cause tire fires?

A

over inflation and duals that touch each other

64
Q

the first step in fighting a fire in a tractor is?

A

get the vehicle off the road and stop

65
Q

when fighting an engine fire, dont ______?

A

open the hood

66
Q

BAC at ____ is the legal limit for a holder of a CDL

A

.04%

67
Q

placcards on hazardous material vehicles must be read from _____ sides and be at least ______ inches

A

4, 9.84

68
Q

you cannot inspect sealed loads but you can check that you don’t exceed?

A

gross weight and axle weight limits

69
Q

who is responsible for an overloaded vehicle?

A

the driver

70
Q

cargo straps are required every ___ feet and any load regardless of size must have no less than ___?

A

10, 2

71
Q

federal regulations require that aggregate working load limit of any securement system be at least _______ times the weight of the article or group of articles

A

1 1/2

72
Q

dry bulk tanks require special care because they have a

A

high center of gravity

73
Q

what is a supply air pressure qauge used for?

A

shows tank pressure

74
Q

what are spring brakes?

A

emergency brakes with powerful springs that are held back by air pressure. if air pressure is removed or lost, they engage

75
Q

front wheel brakes are good under all conditions. true or false?

A

True

76
Q

spring brakes come on at a pressure range of ____to _____ psi?

A

20 to 45

77
Q

a visible warning signal for low air pressure must come on at ____ psi or half the cutout pressure for older models?

A

60

78
Q

wig-wags drop at a psi of______?

A

55

79
Q

on large buses, the low pressure warning device activates at _____to_____psi?

A

80-85

80
Q

never ____________ when the spring brakes are on?

A

push the brake pedal down.

81
Q

what should you do if you are driving and the low pressure warning device or buzzer sounds at 55-60 psi?

A

stop and safely park the vehicle

82
Q

before driving a vehicle with a dual air system, what should you let the system pressure build to?

A

100 psi

83
Q

slack adjusters in s cam type brakes, should not move more than ______ when you pull on it.

A

1 inch

84
Q

brake drums and disks must not have cracks longer than _______the width of the friction area?

A

1/2

85
Q

air pressure should build from 80-100 psi in _____seconds when the engine is running at normal operating speed?

A

45

86
Q

when conducting the air leakdown test, and while holding the foot pedal for 1 minute, the pressure should not drop more than____psi for single and _____psi for combination vehicles?

A

3&4

87
Q

the tractor protection valve comes on at _____to______psi and engages the __________?

A

20-45, spring brakes

88
Q

fanning on and off the brake pedal will _______air pressure, this is how you check that the __________ ___________ come on automatically.

A

reduce, spring brakes

89
Q

the use of brakes on long steep grades is only a supplement to the?

A

braking effect of the engine.

90
Q

why do air brakes take a half second or so longer to reach the braking mechanism as opposed to hydraulic brakes?

A

it takes air longer to flow through the lines.

91
Q

when should you drain air tanks without automatic drain valves?

A

at the end of each driving day

92
Q

you will not have normal braking functions if ABS quits working. true or false?

A

false. you still have normal braking functions

93
Q

what two things are important to prevent rollover?

A

keep cargo as close to the ground as possible

drive slowly around turns

94
Q

when you turn suddenly while pulling doubles, which trailer is more likely to turn over?

A

the rear, last one

95
Q

why should you not use the trailer hand brake to straighten out a jackknifing trailer?

A

the brakes caused the skid in the first place and it will not work

96
Q

when rear wheel follow a different path than the front wheels in a turn, it is referred to as ________?

A

off tracking

97
Q

when backing a trailer, you turn the wheel the _______direction you want the trailer to go? and then you ______to follow

A

opposite, turn the other way

98
Q

the service line is also called a _____ line and is ______

A

control, blue

99
Q

the emergency line is also called the _______line and is _____?

A

supply, red

100
Q

glad hands connect at a __________ angle?

A

90 degree

101
Q

why should you not use the trailer hand valve (Jonson bar) while driving?

A

it can cause a skid, and should only be used for parking

102
Q

the trailer air supply control on newer vehicles is ________ and you ____to supply with air and _____to set the emergency (spring brakes).

A

red handle that looks like a stop sign, push, pull

103
Q

what is the service line for?

A

carries air when the foot pedal or trailer hand brake is applied.

104
Q

what is the emergency line for?

A

supplies air to the tanks, controls the emergency brake on combination vehicles.

105
Q

shut off valves are used at the ______ of trailers used to tow other trailers. when pulling more than one trailer, all the shut off vales must be ______except for the last one.

A

back, open

106
Q

what might happen if the trailer is too high when you try to couple?

A

it may not couple correctly

107
Q

how much space should you have between the apron and the fifth wheel plate?

A

none

108
Q

to drive, you only need to raise the landing gear enough to lift off the pavement. true or false?

A

false, you must raise it all the way up

109
Q

re-grooved tires cannot be used where?

A

front wheels of busses

110
Q

mud flaps must be at least ____ inches off the ground.

A

10

Idaho CLP (1 decks)

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