2026 Nevada DMV Air Brakes Class A Test 1 (25 Questions And Complete Answers)
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Air pressure should build up in a single air system within:
1. 15 minutes.
2. 12 minutes.
3. Three minutes.
1. 15 minutes.
2. 12 minutes.
3. Three minutes.
Three minutes.
A one-way check valve:
1. Drains the water and compressor oil from the air tanks.
2. Prevents air from escaping if the air compressor has a leak.
3. Activates the emergency brakes when there is a leak.
4. Holds the spring brakes in position until they are used.
1. Drains the water and compressor oil from the air tanks.
2. Prevents air from escaping if the air compressor has a leak.
3. Activates the emergency brakes when there is a leak.
4. Holds the spring brakes in position until they are used.
Prevents air from escaping if the air compressor has a leak.
A low air pressure warning signal:
1. Is not recommended on vehicles with air brakes.
2. Is required on vehicles with air brakes.
3. Is optional on vehicles with air brakes.
1. Is not recommended on vehicles with air brakes.
2. Is required on vehicles with air brakes.
3. Is optional on vehicles with air brakes.
Is required on vehicles with air brakes.
During a walk-around inspection, ensure there are no cracks on the brake drums that are more than ____ of the width of the friction area
1. One half
2. One quarter
3. One third
4. One tenth
1. One half
2. One quarter
3. One third
4. One tenth
One half
The two markings on a front brake limiting valve usually read:
1. "Normal" and "slippery."
2. "Left" and "right."
3. "Low" and "high."
1. "Normal" and "slippery."
2. "Left" and "right."
3. "Low" and "high."
"Normal" and "slippery."
Brake linings should be:
1. Loose.
2. Free of oil.
3. Soft.
1. Loose.
2. Free of oil.
3. Soft.
Free of oil.
When traveling down a steep downgrade, the best way to use your brakes is to:
1. Ride the brakes all the way down the hill.
2. Apply the brakes for a few seconds, then release the brakes for a few seconds. Continue to repeat these steps as you travel down the hill.
3. Apply the brakes only near the bottom of the downgrade.
4. Apply consistent pressure to the brake pedal all the way down the hill.
1. Ride the brakes all the way down the hill.
2. Apply the brakes for a few seconds, then release the brakes for a few seconds. Continue to repeat these steps as you travel down the hill.
3. Apply the brakes only near the bottom of the downgrade.
4. Apply consistent pressure to the brake pedal all the way down the hill.
Apply the brakes for a few seconds, then release the brakes for a few seconds. Continue to repeat these steps as you travel down the hill.
The air entering air storage tanks may contain:''
1. Water and compressor oil.
2. Frost.
3. Gravel.
4. Antifreeze
1. Water and compressor oil.
2. Frost.
3. Gravel.
4. Antifreeze
Water and compressor oil.
Air tank drains should:
1. Not be used by the driver.
2. Only be used when it is wet outside.
3. Be used to drain the tanks completely.
1. Not be used by the driver.
2. Only be used when it is wet outside.
3. Be used to drain the tanks completely.
Be used to drain the tanks completely.
During an applied leakage test, the maximum leakage rate for a double combination vehicle is:
1. 10 psi in a minute.
2. 8 psi in a minute.
3. 6 psi in a minute.
4. 4 psi in a minute.
1. 10 psi in a minute.
2. 8 psi in a minute.
3. 6 psi in a minute.
4. 4 psi in a minute.
4 psi in a minute.
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