CDL General Knowledge Study Guide #12

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How far ahead should you look? *

1 point

5-10 seconds

12-15 seconds

15-30 seconds

What should you do before driving if you are sleepy? *

1 point

Drink some coffee

Take some caffeine pills

Get some sleep before you drive

How many red reflective triangles should you carry? *

1 point

Retarders keep you from skidding where the road is slippery. *

1 point

True

False

If you swing wide to the left before turning right another driver may try to pass you on your right. *

1 point

True

False

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

1 point

By looking out the window

Checking your mirrors regularly

Getting out and inspecting the areas

What is the most important hand signal you and your backing helper should agree on? *

1 point

Slowly

Stop

To avoid rollbacks when you start, you should: *

1 point

Stop on a at area

Engage the clutch very quickly

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

Why should you back towards the driver's side? *

1 point

Backing toward the right side is dangerous

So you can see better

Both answers are correct

You should use low beams whenever you can. *

1 point

True

False

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

1 point

So you don't lose it

So no one moves the vehicle

For your safety

When backing, why is it important to use a helper? *

1 point

It makes people think you are a better driver

There are blind spots you can't see

It’s more fun when you have help

If you go twice as fast your stopping distance will increase by: *

1 point

Two times

Three times

Four times

What are the two main things to look for ahead? *

1 point

Road signs and traffic

Police and weigh stations

Traffic and road conditions

How do you test the hydraulic brakes for leaks? *

1 point

Pump the brake pedal three times, then apply rm pressure to the pedal and hold for five seconds. The pedal should not move

Drive 20 mph and slam on the brakes

Drive slowly and pump the brake pedal. Make sure it doesn't hit the floor

If you are driving a 30 foot vehicle at 55 mph, how many seconds of following distance should you allow? *

1 point

4 seconds

6 seconds

8 seconds

Empty trucks have the best braking. *

1 point

True

False

What are two ways to know when to shift? *

1 point

Use engine speed (rpm) and road signs

Use your watch and engine sounds

Use engine speed (rpm) and use road speed (mph)

When should you downshift automatic transmissions? *

1 point

When going down grades

When going up grades

When going around curves

What are two special occasions where you should downshift? *

1 point

When starting off fast and speed shifting

Before starting down a hill and before entering a curve

Before starting up a hill and when going around a curve

What is the proper way to hold the steering wheel? *

1 point

Firmly with both hands on opposite sides of the wheel

With your right hand on the wheel

Firmly with one hand at the top of the wheel and the other hand at the bottom of the wheel

What effects can wet brakes cause? *

1 point

Brakes can be weak or grab

Brakes will work better

Your foot can get tired

What is "black ice"? *

1 point

Dirty snow

Rain and snow mixed

A thin layer of ice clear enough that you can see the road underneath it

If the vehicle in front of you is smaller than yours, it can probably: *

1 point

Out-run you

Stop faster than you

Take turns faster than you

What does "communicating" mean in safe driving? *

1 point

Letting other drivers know you're there to help prevent crashes

Using hand signals

Driving brightly colored vehicles

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