1 . Tread depth in the major grooves on a front tire should be at least:

1/32 of an inch.
2/32 of an inch.
4/32 of an inch.
3/4 of an inch.

2 . When backing, using another person to help guide you is not recommended.

True
False

3 . What can happen if one-fourth of the leaves in a leaf spring are missing when a vehicle is inspected?

The vehicle’s driver will be allowed to drive, but only at reduced speeds.
The vehicle will be put out-of-service until it is fixed.
The vehicle will be fine to drive since most of the spring is in place.
The driver will be asked to decrease the weight of the load.

4 . Mismatched tire sizes are acceptable on the rear axles.

True
False

5 . A rear tire with a tread depth of 2/32 of an inch is acceptable.

True
False

6 . How many daily hours of sleep does an adult need to maintain alertness?

Six to seven
Seven to eight
Eight to nine
Four to five

7 . Tire rims that have welded repairs are acceptable for use.

True
False

8 . When stopping a manual transmission vehicle, what should you do when the engine is close to idle?

Push in the clutch.
Push out the clutch.
Shift into neutral.
Shut off the vehicle.

9 . At least eight red reflective triangles must be carried within a commercial motor vehicle.

True
False

10 . The person resonsible for a vehicle's safe operation is the shipper.

True
False

11 . Rough acceleration:

Is a good way to stay awake on long trips.
Is distracting.
Can cause mechanical damage.
Should be used to prevent rust from forming.
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12 . When switching gears, what happens if you remain in neutral for too long?

The vehicle will speed up.
You may have trouble getting the vehicle into the next gear.
You may kill the engine.
The vehicle will be difficult to stop.

13 . The minimum tread depth of all major grooves on tires that are not on the front of a CMV should be a minimum of:

1/32 of an inch.
2/32 of an inch.
4/32 of an inch.
3/4 of an inch.

14 . Which of the following is not required safety equipment?

A fire extinguisher
A liquid burning flare
An axe

15 . Dual tires should be in contact with each other.

True
False

16 . A front tire with a tread depth of 1/32 an inch is acceptable.

True
False

17 . Tires with deep cracks are usually acceptable.

True
False

18 . When going downhill, switching into a lower gear is an effective way to slow a vehicle.

True
False

19 . Drivers may use ____ red reflective warning triangles when their vehicle is stopped on the side of the road.

Two
Three
Five
Seven

20 . What should be done shortly after a tire has been changed?

The driver should stop to make sure the lug nuts are still tight after driving for a bit.
The driver should repair the brakes.
The driver should deflate the tire to 10 psi.
The driver should inflate the tire.