2026 Louisiana DMV Air Brakes Class B Test 2 (25 Questions And Complete Answers)
1 / 25
Terms in this set
25
Manual air tank drains should be:
1. Opened to drain the tanks after each day.
2. Left open while driving.
3. Sealed with glue.
1. Opened to drain the tanks after each day.
2. Left open while driving.
3. Sealed with glue.
Opened to drain the tanks after each day.
When stopping in an emergency situation, you should:
1. Veer your trailer to the right and stop.
2. Stop in a straight line.
3. Veer your trailer to the left and stop.
1. Veer your trailer to the right and stop.
2. Stop in a straight line.
3. Veer your trailer to the left and stop.
Stop in a straight line.
Brakes out of adjustment will:
1. Work properly.
2. Cause some of the brakes to overwork and malfunction.
3. Allow better acceleration.
1. Work properly.
2. Cause some of the brakes to overwork and malfunction.
3. Allow better acceleration.
Cause some of the brakes to overwork and malfunction.
Do not operate a vehicle if any brake drums have cracks that are larger than ____ of the width of the friction area.
1. One half
2. One third
3. One fifth
1. One half
2. One third
3. One fifth
One half
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.
If the low air pressure warning signal comes on, you should:
1. Continue driving, but have the brakes repaired within a week.
2. Pull over and inspect the brakes.
3. Phone a mechanic while driving.
1. Continue driving, but have the brakes repaired within a week.
2. Pull over and inspect the brakes.
3. Phone a mechanic while driving.
Pull over and inspect the brakes.
The air storage tanks:
1. Hold only enough air for one braking cycle.
2. Hold enough air for the brakes to be used several times if the compressor stops working.
3. Do not hold air unless there is an emergency.
1. Hold only enough air for one braking cycle.
2. Hold enough air for the brakes to be used several times if the compressor stops working.
3. Do not hold air unless there is an emergency.
Hold enough air for the brakes to be used several times if the compressor stops working.
Braking mechanisms are located inside:
1. The fifth wheel.
2. A brake drum.
3. The landing gear.
1. The fifth wheel.
2. A brake drum.
3. The landing gear.
A brake drum.
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 does the air compressor governor do'?
1. It stops the compressor from pumping air.
2. It turns on the air compressor.
3. It stores the compressed air.
1. It stops the compressor from pumping air.
2. It turns on the air compressor.
3. It stores the compressed air.
It stops the compressor from pumping air.
Showing the first 10 terms. Use the flashcard player above to study all 25 terms!