Can help drivers see a larger area.

Cannot be used on vehicles transporting hazardous materials.

Should not be removed when the coolant is hot.

Can be removed when the coolant is hot.

Should be cool to the touch under normal driving conditions.

Michigan CDL Tank 1 - DMV Written Test Questions with Answers

Q.1

The rods in S-cam brakes move the slack adjusters when air pressure is added to the brake chambers. This air pressure is added to the chambers when the driver:

Presses the brake pedal.
Uses the emergency brake.
Uses the trailer hand valve.

Q.2

If unable to tell if the road is becoming icy and slippery, a driver:

Should try guessing.
May open their window and feel the front of the side mirror for ice.
Should look at the road closely.

Q.3

Convex mirrors:

Cannot be used on vehicles transporting hazardous materials.
Are illegal in most states.
Can help drivers see a larger area.

Q.4

If you notice a cargo leak, you should identify the leaking hazardous materials by:

Smelling the materials.
Touching the materials.
Using the shipping papers.

Q.5

If the safety relief valve in an air brake system is releasing air:

You should not be concerned as this is a normal process.
There is something wrong with the brakes.
The valve is operational.

Q.6

The radiator cap:

Should not be removed when the coolant is hot.
Can be removed when the coolant is hot.
Should be cool to the touch under normal driving conditions.

Q.7

After two violations of any state law regarding hand-held mobile phone use:

You will need to cancel your mobile phone service.
Your CDL will be disqualified.
You will be required to drive 10 mph under the posted speed limit for a period of time.

Q.8

When backing with a trailer, turning toward the driver’s side is encouraged because:

The driver will have the best possible view.
Power lines should be on the passenger's side.
Other drivers can offer assistance on the passenger's side.

Q.9

What does an Anti-Lock Braking System (ABS) do?

It allows a vehicle's wheels to lock up.
It prevents a vehicle's wheels from locking up.
It makes turning a vehicle easier.

Q.10

A person attending a placarded vehicle must be:

Inside a gas station looking through a window.
In the vehicle, awake or asleep.
Within 100 feet of the vehicle.

Q.11

How can a driver maintain alertness while driving?

Stay fit and healthy
Keep the cab warm
Eat heavy foods

Q.12

The trailer hand valve:

Should always be used for parking.
Should only be used for parking on a downgrade.
Should never be used for parking.

Q.13

Trailers built before ____ are not required to have spring brakes.

1985
1975
1999

Q.14

If a vehicle is power steering-equipped, the hoses should be:

Checked for leaks.
Securely connected to the battery.
Carrying fuel.

Q.15

What should you do if your vehicle gets stuck on railroad tracks?

Stay in the vehicle.
Get out of the vehicle and call for assistance.
Continue trying to get your vehicle off the tracks until you are successful.

Q.16

When driving at night, you should do all of the following, except:

Make sure you are rested.
Make sure your glasses are clean.
Wear sunglasses.

Q.17

Carrying gases or liquids in a leaking tank is:

Discouraged.
Acceptable on short trips.
Illegal.

Q.18

To ensure that you do not slow down traffic when driving a large truck, you should:

Switch gears while driving uphill.
Try to pass another vehicle while driving uphill.
Stay in the right lane whenever possible.

Q.19

When inspecting your vehicle, you should check for all of the following, except:

Too much air pressure in your tires.
Too little air pressure in your tires.
A consistent name brand across all of your tires.

Q.20

A thin layer of ice that forms on road surfaces is called:

White ice.
Black ice.
Blue ice.