CDL Prep General Knowledge

1

You are driving on a straight, level highway at 50 mph. There are no vehicles in front of you. Suddenly a tire blows out on your vehicle. What should you do first?

2

You are driving a new truck with a manual transmission. What gear will you probably have to use to take a long, steep downhill grade?

3

You are checking your wheels and rims for a pre-trip inspection. Which of these statements is true?

4

You're checking your tires for a pre-trip inspection which of these statements is true?

5

If a straight vehicle (no trailer or articulation) goes into a front-wheel skid, it will:

6

If you need to leave the road in a traffic emergency, you should:

7

Which of these statements about certain types of cargo is true?

8

According to the Drivers Manual, why should you limit the use of your horn?

9

You do not have a Haz-Mat Endorsement on your Commercial Driver's License. You are asked to deliver hazardous materials in a placarded vehicle. You should:

10

Which of these statements about staying alert to drive is true?

11

Your vehicle has hydraulic brakes. While traveling on a level road, you press the brake pedal and find that it goes to the floor. Which of these statements is true?

12

You are driving a vehicle at 55 mph on dry pavement. About how much total stopping distance will you need to bring it to a stop?

13

Which of these statements about cold-weather driving is true?

14

When driving at night, you should:

15

Which of these statements about downshifting is true?

16

For your safety, when setting out reflective triangles you should:

17

As the Blood Alcohol Concentration (BAC) goes up, what happens?

18

Which of these is a good thing to remember about using mirrors?

19

Hydroplaning:

20

If you are being tailgated, you should:

21

A key principle to remember about loading cargo is to keep the load:

22

How far should a driver look ahead of the vehicle while driving?

23

How do you correct a drive-wheel acceleration skid?

24

The purpose of retarders is to:

25

Controlled braking:

26

Which of these things as a good thing to do when steering to avoid a crash

27

You should stop driving:

28

Which of these is not a good rule to follow when caring for the injured at an accident scene?

29

You should avoid driving through deep puddles or flowing water. But if you must, which of these steps can help keep your brakes working?

30

Which of these statements about drugs is true?

31

Which of these is a good thing to remember when crossing or entering traffic with a heavy vehicle?

32

You are driving a heavy vehicle with a manual transmission. You have to stop the vehicle on the shoulder while driving on an uphill grade. Which of these is a good rule to follow when putting it back in motion up the grade?

33

You are driving a heavy vehicle. You must exit a highway using an off ramp that curves downhill. You should:

34

You must park on the side of a level, straight, four-lane, divided highway. Where should you place the reflective triangles?

35

You are driving on a two-lane road. An oncoming driver drifts into your lane and is headed straight for you. Which of these is most often the best action to take?

36

Brake "fade":

37

Which of these statements about engine overheating is true?

38

Which of these statements about overhead clearance is true?

39

Which of these statements about vehicle fires is true?

40

You must drive on a slippery road. Which of these is a good thing to do in such a situation?

41

Which of these statements about accelerating is true?

42

Which of these statements about brakes is true?

43

When the roads are slippery, you should:

44

You are checking your brakes and suspension system for a pre-trip inspection. Which of these statements is NOT true?

45

The Drivers Manual suggests several things to do when you pass a vehicle. Which of these is NOT one of them?

46

The distance that you should look ahead of your vehicle while driving amounts to about ____ mile at highway speed.

47

You are starting your vehicle in motion from a stop. As you apply power to the driver wheels, they start to spin. You should:

48

Which of these is the most important thing to remember about emergency braking?

49

Which of these statements about tires and hot-weather driving is true?

50

Your vehicle is in a traffic emergency and may collide with another vehicle if you do not take action. Which of these is a good rule to remember at such a time?

51

In case of which fires can you use water to put it out?

52

To help you stay alert while driving, you should:

53

To avoid a crash, you had to drive onto the right shoulder. You are now driving at 45 mph on the shoulder. How should you move back onto the pavement?

54

Which of these statements about driving in areas with strong winds is true?

55

Which of these is a good thing to do when driving at night?

56

You are driving a 40-foot vehicle at 35 mph. The road is dry and visibility is good. What is the least amount of space that you should keep in front of your vehicle to be safe?

57

What is the proper way to hold a steering wheel?

58

High beams should be:

59

You can see a marking on a vehicle ahead of you. The marking is a red triangle with an orange center. What does the marking mean?

60

Which of these is not part of the pre-trip inspection of the engine compartment?

61

The road you are driving on becomes very slippery due to glare ice. Which of these is a good thing to do in such a situation?

62

What is countersteering?

63

Which of these statements about backing a heavy vehicle is true?

64

Which of these describes how you should use the brake pedal on a steep downhill grade?

65

Which of these statements about using turn signals is true?

66

Which of these statements about double clutching and shifting is true?

67

Which of these statements about speed management is true?

68

Retarders:

69

To correct a drive-wheel braking skid, you should:

70

When exiting or entering on a curved freeway ramp, you should:

71

Which of the following vehicles will have the longest stopping distance?

72

How many red reflective triangles should you carry

73

You are required to inspect your truck within how many miles after beginning the trip?

74

There are two types of jackknife, they are:

75

The new BAC (blood alcohol concentration) for commercial drivers to be considered intoxicated when driving a commercial vehicle is:

76

Where should the ignition key be during the pre-trip inspection?

77

When loading a trailer, if the cargo is loaded all to the rear, it may result in:

78

Communication means:

79

If you are convicted for driving under the influence while driving a commercial vehicle, and this is your first offense, you will most likely get:

80

If you are stopped at a roadside rest area and found to have BAC (Blood Alcohol Concentration) of 0.02 you will:

81

Which of the following statements about speed management is true?

82

You are traveling down long, steep hill. Your brakes get so hot that they fail. What should you do?

83

The center of gravity of a load:

84

To prevent a load from shifting, there should be at least one tie down for every _____ feet of cargo.

85

While driving, ice builds up on your wipers and they no longer clean the windshield. You should:

86

When hydraulic brakes fail while driving, the system wont build up pressure and the brake pedal will feel spongy or go to the floor. What action should you take?

87

Which may be a sign of tire failure?

88

To prevent brake fade you should:

89

A full stop is required at a railroad crossing when:

90

When driving at night you should use your high beams when oncoming traffic is not within ______ feet?

91

When driving through the work zone you should:

92

Backing of the commercial vehicle is:

93

When you are parked on the side of the road at night you must:

94

You must stop on a hill or two-lane-two-way road. How far should you place reflective triangles?

95

Stab braking should not be used on vehicles with:

96

Sometimes you need to leave a road to avoid a hazard or emergency. When you do so you should keep in mind, that ?

97

Which of the following is NOT a characteristic of the front tire failure?

98

Most skids:

99

In bad weather many drivers tailgate large vehicles. What should you do?

100

Which of these systems should receive extra attention during a winter weather inspection?

101

What happens to tar on the road pavement during hot weather?

102

What is the best advice for drivers when a heavy fog occurs?

103

In mountain driving you will have to use a lower gear to drive safely on a grade. Which of these does NOT affect your choice of gear?

104

What you should fo before driving in mountains?

105

Escape ramps:

106

Which of these is true about notifying the authorities after an accident occurs?

107

If you are not sure what to use to put out a hazardous material fire you should:

108

Which of these is NOT a danger of a rough acceleration?

109

Which of these lights cannot be checked at the same time?

110

You are inspecting hydraulic brakes. You should pump the brake three times then apply firm pressure to the brake pedal and hold for five seconds. If the brakes are working properly, the pedal should.

111

Drivers of trucks and tractor-trailers with cargo must check that the cargo is well secured within the first ______ miles of the trip.

112

When starting a bus on a level surface with good traction there is often no need for:

113

How does the weight of the vehicle affect stopping distance?

114

When you are starting to move up a hill from a stop:

115

What is true about a heater?

116

Why is damage to the exhaust system is a danger?

117

Which of these is NOT a danger when an automatic transmission is forced into a lower gear at a high speed?

118

Perception distance is the distance your vehicle travels from the time:

119

Extra care is needed to keep your vehicle centered in your lane because commercial vehicles:

120

You should lightly apply your brakes to flash the brake lights if:

121

Merging to the road is safest if you:

122

Which of these is NOT something you should do if your headlights are not working properly?

123

Which of the statements about backing a heavy vehicle is NOT true.

124

The distance that you should look ahead of your vehicle while driving is about _____ at low speed.

125

Which of these is correct about emergency or evasive action?

126

What does emergency breaking mean?

127

When driving in cold weather your tire tread should:

128

Which of these true about hauling hazardous materials?

129

Which vehicle will have the most difficulty staying in its lane during strong wind?

130

Why does vehicle speed naturally increase on a downgrade?

131

During the vehicle inspection, checking of ______ will NOT prevent fire.

132

When is it necessary to learn how a fire extinguisher works?

133

What is the most important reason to inspect your truck or bus?

134

You are checking your steering and exhaust system in a pre-trip inspection. Which of these problems, if found, should be fixed before the vehicle is driven?

135

Convex (curved) mirrors:

136

Why is it so important to shift gears correctly?

137

What three distances build up the total stopping distance of your truck or bus?

138

Which of these actions are NOT recommended for a left turn?

139

When you are passing a vehicle, pedestrian, or bicycle you should assume that:

140

When merging:

141

Which of these is the proper signal to change lane?

142

You are driving in an area with few streetlights, if you cannot see well with your headlights, which of the actions may help:

143

Most serious skids result from:

144

What should be true about other drivers:

145

What is true about bad weather and driving conditions?

146

Which of these statements about the hazard vehicle fire is true?

147

You should wear a seat belt in a moving vehicle:

148

Which of these items is NOT checked for a pre-trip inspection?

149

Which of the statements about pre-trip inspection is true?

150

Can state inspectors inspect your truck or bus?

151

Which of these statements about cargo loading is true?

152

Which of these is not required knowledge for drivers seeking a hazardous material endorsement?

153

To determine blood alcohol concentration level for a person, it is necessary to know:

154

Implied consent means:

155

The engine brake effect is greater when the engine is _____ governed RPM and the transmission is on a ______ gear.

156

You are driving a 40-foot vehicle at 55mph. The road is dry, and visibility is good. What is the least amount of space that you need to have infant of your vehicle?

157

What should you do if a car coming toward you at night keeps its high beams on?

158

If you must cross into the oncoming lane to make a turn, you should:

159

Which of these is true about driving in a tunnel?

160

You should use your horn when:

161

The tread depth on front steering wheel tires should be:

162

Your vehicle will be put out of service if _____ or more leaves in any leaf spring are missing.

163

Brake drums (or discs) must not have cracks longer than _____ the width of the friction area.

164

A hazard:

165

Which of these rigs has a higher chance to off-track while making a turn?

166

How much space in front of you is needed while driving on a highway?

167

Medicine used to treat common cold:

168

Which of these should you NOT do in an emergency situation?

169

The primary cause of fatal crashes is:

170

A car suddenly cuts in front of you, creating a hazard. Which of these actions you NOT take?

171

What should you do when you see a hazard in the roadway ahead of you?

172

If your brakes fail on a downgrade, you must first:

173

You should always turn on your emergency four-way flashers when you:

174

Should brake adjustment be checked often?

175

Which of these is true about mirror adjusting?

176

When you are driving on a snow packed road, you should reduce your speed by:

177

The bridge formula:

178

You should use your mirror to check?

179

Which of these is true about the use of drugs while driving?

180

Which of these is ture about proper use of a steering wheel?

181

When are helpers needed to back your vehicle?

182

To avoid an accident you moved to the shoulder. Forced to return to the road, you should:

183

Heavy vehicles often move slower than others. Which of these is NOT a good rule to follow while driving a heavy vehicle.

184

Tourists may be hazardous because?

185

What keeps an engine cool in hot weather driving?

186

Cargo Inspection:

187

A vehicle is loaded with very little weight on the drive axle. What may happen?

188

If your vehicle catches on fire while you are driving, you should:

189

Which of these statements about marking a stopped vehicle is true?

190

Containerized loads:

191

When a coolant container is part of a pressurized system of these is true?

192

When should you test your parking brakes?

193

When going down to a long steep downgrade you should always:

194

Controlled braking is:

195

Which of these is not a brake check you normally do during your walk-around inspection?

196

One can recognize hazardous materials by looking on the container:

197

Which of these is not a type of retarder?

198

The total weight of a powered unit, the trailer and the cargo is called?

199

Freeway exits can be dangerous for commercial vehicles, at what speed should you enter the exit?

200

Which of these statements is true?

201

Space to the _____ your vehicle is most important to manage.

202

Your brakes acan get wet when driving through heavy rain. What can happen if the brakes are applied?

203

Which of the statement about an inspection of the suspension components is true?

204

You do not have hazardous materials endorsement in your commercial driver license. You can drive a vehicle hauling hazardous materials when:

205

If you are convinced of driving a commercial vehicle under the influence of alcohol or drugs, you will lose your CDL for:

206

Which of these is true about hazardous materials:

207

You will be placed out of service for 24 hours if your blood alcohol concentrations (BAC) is at least:

208

Gross vehicle weight GVW means the following

209

After starting the engine:

210

Whenever you double your speed, your vehicle has about how many times of destructive power if it crashes?

211

If you do not have a CB-radio, what procedure should you follow on an accident scene?

212

If you have a heavy load that is slowing you down on an upgrade you should:

213

You should signal continuously while turning because:

214

Which of these should be tested while the vehicle is stopped?

215

Which of these statements about braking is true?

216

Which of these pieces of emergency equipment should always be carried in your vehicle?

217

If you have to make a vehicle inspection report you must sign it

218

You must keep the papers about hauling hazardous materials:

219

Which of these statements about the rear drive wheel braking skid is true?

220

The best drivers are those who watch and prepare for hazards. This is called ______ driving.

221

What is the term for a commercial vehicle habit of swinging wide on turns?

222

You may hang up on a railroad track if:

223

Which of these is true about radiator shutters and the winter-front during winter driving?

224

If you have a road emergency and must park on the shoulder, how soon should you put out your triangles?

225

Which of these do NOT provide extra gears on some trucks?

226

Which of these is true about tire pressure?

227

What should you do if you are unsure whether you have enough overhead clearance?

228

What should you do when your vehicle hydroplanes?

229

Which of these is true about tires and hot weather?

230

Gross Vehicle Weight Rating (GVWR) means the following:

231

The value specified by the manufacturer as the loaded weight of a combination vehicle is?

232

To avoid an accident you moved to the shoulder. The shoulder is clear you should:

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CDL Prep General Knowledge

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