CDL PRACTICE TEST - GENERAL KNOWLEDGE (CALIFORNIA)

11. Before entering a curve, drivers should:
downshift to the right gear.
speed up.
drive on the shoulder.
12. You must use ________ as the principal way of controlling your speed on downgrades.
the brake pedal
controlled braking
the braking effect of the engine
13. When should you turn the retarder off?
when the cargo is heavy.
when your vehicle has a high center of gravity.
when the road is slippery.
14. The application pressure gauge:
shows how much air pressure is being applied to the brakes.
tells you how much pressure is in the air tanks.
protects the tank and the rest of the system from too much pressure.
15. When is it safe to remove the radiator cap?
Whenever coolant has to be added to the system.
When you can touch the radiator cap with your bare hand.
As soon as you've stopped, as long as the engine is not hot.
16. If your vehicle thumps or vibrates heavily, it may be a sign that:
the brakes have failed.
you need to shift up.
one of the tires has gone flat.
17. Why should you complete an after-trip inspection report?
To help the motor carrier know when the vehicle needs repairs.
To prove that you finished your trip.
So you won't be held responsible for any subsequent damage.
18. Blood Alcohol Concentration (BAC) is determined by:
the type of alcohol you drink.
how frequently you drink.
the amount of alcohol you drink.
19. Which of these statements is true?
Dual tires that come in contact with each other provide better traction.
A tread depth of 2/32 of an inch is safe for steering axle tires.
Radial and bias-ply tires should not be used together on the same vehicle.
20. If a shipping paper describes both hazardous and non-hazardous products, the hazardous materials must be:
identified by an "H" placed before the shipping description.
written in a larger font.
entered first.
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