2026 Nebraska DMV Knowledge Test Class A Test 1 (49 Questions And Complete Answers)

DMV 49 Terms | 2026 Nebraska DMV Knowledge Test Class A Test 1 (49 Questions And Complete Answers)

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Terms in this set 49

Most heavy-duty vehicles use ____ air brake systems.

1. Single
2. Dual
3. Triple
4. Quad

Dual

What do headers do?

1. Protect the driver during a crash
2. Provide a place for storage
3. Ensure that controls are accessible
4. Act as wind guards

Protect the driver during a crash

Before driving a vehicle with air brakes, you should ensure that the ____ come on automatically when air pressure falls below 45 psi.

1. Spring brakes
2. Parking brakes
3. Air brakes

Spring brakes

When going down a steep downhill, your primary source of braking should be:

1. Engine adjustments/downshifting.
2. Using the brake.
3. Using the parking brake.
4. Using ABS.

Engine adjustments/downshifting.

A vehicle equipped with an Anti-Lock Braking System (ABS) can be identified by:

1. A sticker on the control panel.
2. A yellow lamp on the instrument panel.
3. The letters "ABS" on the brake pedal.
4. A metal plate on the inside of the driver’s side door.

A yellow lamp on the instrument panel.

Eating while driving:

1. Is a good way to maximize your time.
2. Is encouraged during long trips.
3. Is a distraction to the driver.

Is a distraction to the driver.

A ____ allows a driver to gradually apply spring brakes.''

1. Modulating control valve
2. Trailer air supply control
3. Relay valve

Modulating control valve

When driving in fog, you should:

1. Use the windshield wipers.
2. Use low beam headlights.
3. Use high beam headlights.
4. Use the air conditioning.

Use low beam headlights.

____ is an example of required emergency equipment.

1. A spare electrical fuse
2. A loud horn
3. A battery-operated flashlight

A spare electrical fuse

Once they have begun to drive after a tire on their vehicle has been changed, a driver should stop after a short distance to:

1. Ensure that the lug nuts are still tight.
2. Ensure that the tire is wearing evenly.
3. Ensure that the air pressure of the tire is still acceptable.

Ensure that the lug nuts are still tight.

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