General Knowledge

Front 1

BUY NOWYour vehicle's right turn signal should be what color at the rear.

Back 1

yellow, amber, red

Front 2

If something is blocking your path and you are blocked on both sides, __________

Back 2

Steer right

Front 3

If stopped on a hill, how can you start moving without rolling back?

Back 3

Partly engage the clutch before you take your right foot off the brake.

Front 4

common causes of vehicle fires?

Back 4

Electrical short circuits due to loose connections. Improper use of flares.

Improperly sealed flammable cargo.

Spilled fuel after an accident.

Front 5

Gross Combination Weight (GCW)

Back 5

The total weight of a powered unit plus trailers plus the cargo

Front 6

Gross Combination Weight Rating (GCWR).

Back 6

The maximum GCW specified by the manufacturer for a specific combination of vehicles plus its load.

Front 7

What things should you check during a trip?

Back 7

Watch gauges, mirrors, use your senses to check for problems. Look, listen, and smell.

Front 8

What three kinds of emergency equipment must you have?

Back 8

Fire extinguisher, spare electrical fuses , warning devices for parked vehicles

Front 9

What factors determine your selection of a safe speed when going down a long steep downgrade

Back 9

Total weight of the vehicle and cargo, length of the grade, steepness of the grade, road conditions, weather.

Front 10

Your CDL will be disqualified after _____ or more convictions of any state law on texting or operating a hand held telephone while operating a CMV

Back 10

2

Front 11

Name some important steering system parts?

Back 11

Tie rod, spindle, pitman arm.

Front 12

Key Suspension Parts

Back 12

Leaf spring, vehicle frame, torque rod.Main spring, axle, spring shackle

Front 13

T or F You can safely remove the radiator cap as long as the engine is not overheated.

Back 13

F Never remove the radiator cap or any part of the pressurized system until the system has completely cooled.

Front 14

How often must you stop while on the road to check your cargo?

Back 14

Within 50 miles after beginning a trip, after every break, and every 3 hrs, 150 miles.

Front 15

For what four things related to cargo are drivers responsible?

Back 15

Inspecting your cargo, recognizing overloads, properly secured cargo, cargo does not restrict emergency equipment.

Front 16

Where should your reflectors be placed when stopped on a divided highway?

Back 16

0 feet, 100 feet, and 200 feet toward the approaching traffic.

Front 17

Where should your reflectors be placed when stopped on a undivided highway?

Back 17

Place within 10 feet of the front or rear corners to mark the location of the vehicle and 100 feet behind and ahead of the vehicle.

Front 18

Why put the starter switch key in your pocket during the pre-trip inspection?

Back 18

So no one moves the vehicle while you are inspecting underneath it.

Front 19

How long does it take for a typical tractor trailer unit to clear a single rail road track?

double?

Back 19

14

15

Front 20

What must you check before transporting a sealed load?

Back 20

The load is properly secured.

Front 21

Coming Down Long steep grades

(Braking effect of the engine)

Back 21

Brake hard enough to feel a slowdown, when your speed has been reduced to 5 mph below your safe speed, release the brakes. When your speed has increased to your safe speed, repeat these steps.

Front 22

What should wheel-bearing seals be checked for?

Back 22

Leaks

Front 23

Too much weight on the steering axle can cause hard steering.

Front 24

Name some suspension system defects.

Back 24

Broken leaves in leaf spring. Cracked or broken spring hangers. Leaking shock absorbers

Front 25

How can you avoid the effects that wet brakes can cause?

Back 25

Slow down.

Gently put on the brakes. This presses linings against brake drums or discs and keeps mud, silt, sand, and water from getting in.

Place transmission in a low gear.

Increase engine rpm and cross the water while keeping light pressure on the brakes.

When out of the water, maintain light pressure on the brakes for a short distance to heat them up and dry them out.

Front 26

Name the two basic reasons for covering cargo on an open bed?

Back 26

To protect people from spilled cargo, and to protect the cargo from weather.

Front 27

What is a hazardous materials placard?

Why are placards used?

Back 27

Signs put on the outside of a vehicle which identify the hazard class of the cargo.

To communicate the risk.

Front 28

Name two situations where legal maximum weights may not be safe to haul?

Back 28

During bad weather or in mountains

Front 29

following does cause front wheel skids?

Back 29

Driving too fast for conditions.

Lack of tread on the front tires.

Not enough weight is on the steer axle.

Front 30

How do antilock brakes help you?

Back 30

They help keep wheels from locking up.

Front 31

Which of the following is not a tire defect?

Back 31

Damaged Rims

Are tire defects:

Too much or too little air pressure. Tread separation. Cut or cracked valve stems.

Front 32

Hydraulic Test

Back 32

Pump the brake pedal three times, apply firm pressure for 5 seconds, the pedal should not move.

Front 33

What is your most important way to see the sides and rear?

Back 33

Your mirrors

Front 34

A bridge formula permits less maximum-axle-weight for axles that are closer together to prevent over loading bridges and roads.

Front 35

Name two causes of tire fires?

Back 35

Under-inflated tires and duals that touch

Front 36

You will lose your CDL for 90 days, then 1 year, then 3 years minimum for each time you are caught driving while your vehicle is out-of-service.

Back 36

..

Front 37

What two things do all CDL vehicle inspection tests include?

Back 37

an engine start and an in-cab inspection.

Front 38

Which of the following would cause you to stop IMMEDIATELY?

Back 38

Low, Dropping, or fluctuating oil pressure. Without oil, the engine can be destroyed rapidly

Front 39

A bridge formula restricts the axle weight for axles which...

Back 39

Are closer together

Front 40

After starting your vehicle, air pressure should build from 50 to 90 psi within how many minutes?

Back 40

3-4

Front 41

How soon should oil pressure rise to a normal level after starting the engine?

Back 41

Within Seconds

Front 42

Descending a long downgrade, which of these will help you if you have brake difficulties?

Back 42

Turn going uphill, an open field, escape ramp

Front 43

How do you correct a rear wheel braking skid when driving on ice or snow?

Back 43

Stop accelerating

Front 44

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

Back 44

Travel straight ahead even if you turn the steering wheel

Front 45

Controlled braking:

Back 45

Is used to keep a vehicle in a straight line when braking

Front 46

How many missing or broken leaves in any leaf spring will cause a commercial vehicle to be placed out of service?

Back 46

1/4

Front 47

How does tire pressure affect hydroplaning?

Back 47

More likely to occur when tire pressure low