CDL General Knowledge

Front

Which of these is not a type of retarder? Electric, Hydraulic, Robotic

Back

Robotic

Front

You are driving on a straight, level highway at 50 mph. There are no vehicles in front of you. Suddenly a tire blew out of your vehicle, what should you do first?

Back

Stay off the brake until the vehicle has slowed down.

Front

Which of these statements about the hazard vehicle fire is true? Carrying a fully charged fire extinguisher may prevent a fire. Poor cargo ventilation may cause cargo to catch on fire. Under inflated tires cannot cause a vehicle fire.

Back

Poor cargo ventilation may cause cargo to catch on fire.

Front

Perception distance is the distance your vehicle travels from the time: your eyes see a hazard to the time the brain knows that this is a hazard

Back

your eyes see a hazard to the time the brain knows that this is a hazard

Front

What is the most important reason to inspect your truck or bus?

Back

Safety

Front

When should you test your parking brakes? Options: While moving at a very low speed., While the vehicle is parked., When backing.

Back

While the vehicle is parked.

Front

The road you are driving on becomes very slippery due to glare ice. Which of these is a good thing to do in such a situation?
Options:
1. Keep varying your speed by accelerating and braking.
2. Stop driving as soon as you can do so safely.
3. Downshift to stop.

Back

Stop driving as soon as you can do so safely.

Front

If a coolant container is part of a pressurized system which of these is true? You can check the coolant level while the engine is hot. The cap can be safely removed and coolant added even when the engine is at operating temperature. You never need to check the antifreeze in such a system.

Back

You can check the coolant level while the engine is hot.

Front

What should you do before driving in mountains?

Back

Know escape ramp locations on your way.

Front

What three distances build up the total stopping distance of your truck or bus?

Back

Perception distance, reaction distance, and braking distance.