2026 Free Alaska DMV Class B Air Brakes Test 2 (25 Questions And Complete Answers)
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The leakage rate for a single vehicle with air brakes should be no more than ____ in one minute during a static leakage test.
1. 1 psi
2. 2 psi
3. 3 psi
1. 1 psi
2. 2 psi
3. 3 psi
2 psi
An air compressor governor controls:
1. When the air compressor pumps air into the air storage tanks.
2. How fast air is pumped into the air storage tanks.
3. The temperature of the air pumped into the air storage tanks.
1. When the air compressor pumps air into the air storage tanks.
2. How fast air is pumped into the air storage tanks.
3. The temperature of the air pumped into the air storage tanks.
When the air compressor pumps air into the air storage tanks.
An application pressure gauge shows:
1. How much air pressure is being applied to the brakes.
2. How much air pressure is available.
3. How much air pressure is required to stop a vehicle.
1. How much air pressure is being applied to the brakes.
2. How much air pressure is available.
3. How much air pressure is required to stop a vehicle.
How much air pressure is being applied to the brakes.
Failing to drain air tanks could result in:
1. Water accumulations freezing and causing brake failure.
2. Squishy brakes.
3. Too much air collecting in the tanks.
1. Water accumulations freezing and causing brake failure.
2. Squishy brakes.
3. Too much air collecting in the tanks.
Water accumulations freezing and causing brake failure.
When experiencing cold weather, be sure to check your vehicle's alcohol evaporator:
1. Every three hours.
2. Every day.
3. Every other week.
1. Every three hours.
2. Every day.
3. Every other week.
Every day.
Foundation brakes are used:
1. Only on the front wheels of a vehicle.
2. Only on the rear wheels of a vehicle.
3. On each wheel of a vehicle.
1. Only on the front wheels of a vehicle.
2. Only on the rear wheels of a vehicle.
3. On each wheel of a vehicle.
On each wheel of a vehicle.
Using an Anti-Lock Braking System (ABS):
1. Is required in some states.
2. Shortens brake response time.
3. Provides additional control.
1. Is required in some states.
2. Shortens brake response time.
3. Provides additional control.
Provides additional control.
What can happen if the air pressure gets too low in an air brake system?
1. The brakes may squeak.
2. The brakes may stop working.
3. The brakes may be sluggish.
1. The brakes may squeak.
2. The brakes may stop working.
3. The brakes may be sluggish.
The brakes may stop working.
Brakes can get out of adjustment quickly, especially:
1. If they are hot.
2. In the winter time.
3. If they are used frequently.
1. If they are hot.
2. In the winter time.
3. If they are used frequently.
If they are hot.
A slack adjuster should move no more than ____ from where it is attached to the push rod.'
1. Two inches
2. Five inches
3. One inch
1. Two inches
2. Five inches
3. One inch
One inch
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