GENERAL KNOWLEDGE CDL TEST MARYLAND - PRACTICE TEST

31. The most important hand signal you should agree on with a helper is:
Go
Stop
Keep backing
Slowly
32. When a tire fails, the driver should:
swerve to the right.
drive on the shoulder.
stay off the brake.
immediately apply the brakes.
33. The 2 special conditions where you should downshift are:
Before starting up a hill and after finishing a curve.
Before starting down a hill and before entering a curve.
Before starting up a hill and before finishing a curve.
While going down hill and after finishing a curve.
34. To test the parking brake:
gently try to pull forward with the parking brake on.
step on and off the brake pedal to reduce air pressure.
check that all shut-off valves are in the open position.
turn off the engine.
35. You should not use your horn unnecessarily. Why?
On vehicles possessing air brakes, it uses up air pressure you may need to be able to stop
The horn can startle other drivers, which could be dangerous.
The horn on a vehicle wears out very quickly
All of the above.
36. When making a left turn at an intersection, you should:
start your turn before reaching the center of the intersection.
always take the left turn lane if there are two turning lanes.
reach the center of the intersection before you start the left turn.
always use your horn.
37. Before unloading explosive materials, you should:
connect heater power sources.
use hooks or other metal tools if possible.
keep the engine running.
turn your engine off.
38. Which of the following is NOT one of the four a basic skills needed to operate a commercial vehicle?
Ability to back the vehicle safely
Ability to steer
Ability to multitask while driving
Ability to accelerate
39. The service brake system:
applies and releases the brakes when you use the brake pedal during normal driving.
applies and releases the parking brakes.
applies and releases the emergency brake.
None of the above.
40. For safety during a trip, you should:
check critical items when you stop.
watch gauges for signs of trouble.
use your senses to check for problems.
All of the above.
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