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Pennsylvania CDL Class B Knowledge Test 2
Practice mode
Question
1
of 25
QUESTION 1 / 25
If you experience a loss of hydraulic pressure, you should do all of the following, except:
Choose one answer below.
A
Downshift.
✓
B
Pump the brakes.
✓
C
Accelerate.
✓
D
Use the parking brake.
✓
QUESTION 2 / 25
When checking the power steering fluid during a vehicle inspection, you will need to do each of the following, except:
Choose one answer below.
A
Show where the power steering fluid dipstick is located.
✓
B
Check for adequate power steering fluid.
✓
C
Ensure that the power steering fluid level is above the full mark.
✓
D
Ensure that the power steering level is above the refill mark.
✓
QUESTION 3 / 25
Front brake limiting valves were intended to:
Choose one answer below.
A
Prevent the front tires from skidding.
✓
B
Prevent the front tires from overheating.
✓
C
Create equal brake usage.
✓
D
Remove uncertainty when applying the brakes.
✓
QUESTION 4 / 25
Friction inside a brake drum is caused when the brake shoes and linings:
Choose one answer below.
A
Push against each other.
✓
B
Separate from the axle.
✓
C
Push against the inside of the drum.
✓
D
Create excess heat.
✓
QUESTION 5 / 25
Which of the following is not a good way to reduce crashes when turning right?
Choose one answer below.
A
Turn slowly.
✓
B
Keep the tail end close to the curb.
✓
C
Keep an eye on oncoming traffic.
✓
D
Allow open space on your right side.
✓
QUESTION 6 / 25
When it is difficult for others to see your vehicle, such as at dawn or dusk, you can help other drivers by:
Choose one answer below.
A
Keeping your lights off.
✓
B
Turning your lights on.
✓
C
Driving on the shoulder.
✓
D
Waving an arm out the window.
✓
QUESTION 7 / 25
When taking the on-road test, you will be evaluated on regular traffic checks. You should not:
Choose one answer below.
A
Scan the road for pedestrians.
✓
B
Check traffic regularly.
✓
C
Avoid checking your mirrors near intersections.
✓
D
Check your mirrors regularly.
✓
QUESTION 8 / 25
What is black ice?
Choose one answer below.
A
A thick layer of ice on the road
✓
B
A thin layer of ice on the road
✓
C
Ice that is black from debris on the road
✓
D
Ice that is easily seen
✓
QUESTION 9 / 25
Foundation brakes are used:
Choose one answer below.
A
Only at the front wheels.
✓
B
Only at the rear wheels.
✓
C
Only at the driver’s side wheels.
✓
D
At each wheel.
✓
QUESTION 10 / 25
A driver can have:
Choose one answer below.
A
Two licenses, one for automobiles and one for trucks.
✓
B
Only one license.
✓
C
A license for each state in which they plan to drive.
✓
D
An automobile license from one state and a CDL from another.
✓
QUESTION 11 / 25
When traction is poor, a driver should accelerate slowly:
Choose one answer below.
A
Because it is best to always accelerate very slowly.
✓
B
So they do not lose control of their vehicle.
✓
C
So the driver does not accelerate faster than the vehicle ahead.
✓
D
To be the last vehicle through an intersection.
✓
QUESTION 12 / 25
When doing an inspection, ensure that the brake pads are:
Choose one answer below.
A
Covered with grease.
✓
B
Covered with coolant.
✓
C
Covered with oil.
✓
D
Free of oil or grease.
✓
QUESTION 13 / 25
Which of the following is not a backing maneuver that you will be asked to perform during the basic control skills test?
Choose one answer below.
A
Straight line backing
✓
B
Offset back/right
✓
C
Offset back/left
✓
D
Blind offset
✓
QUESTION 14 / 25
During an applied leakage test, the maximum leakage rate for a single vehicle with air brakes is:
Choose one answer below.
A
3 psi in one minute.
✓
B
6 psi in one minute.
✓
C
8 psi in one minute.
✓
D
4 psi in one minute.
✓
QUESTION 15 / 25
What does ABS do?
Choose one answer below.
A
Prevent wheel lockup
✓
B
Prevent the air compressor from overheating
✓
C
Prevent the front brakes from being used on ice
✓
D
Prevent the brakes from being used if downshifting would be more effective
✓
QUESTION 16 / 25
Roads are slippery when it first begins to rain because:
Choose one answer below.
A
Water is slippery.
✓
B
The fresh rain mixes with oil on the roadway.
✓
C
The water has nowhere to go.
✓
D
Concrete can be slippery.
✓
QUESTION 17 / 25
Failing to exit your vehicle properly during an exercise in the basic vehicle control skills test will result in:
Choose one answer below.
A
Failure of only that exercise.
✓
B
A reset of that exercise.
✓
C
Automatic failure of the basic vehicle control skills test.
✓
D
An extra point against your score.
✓
QUESTION 18 / 25
To help your vehicle be seen by others:
Choose one answer below.
A
Headlights should be clean.
✓
B
Headlights should be turned off during the day.
✓
C
Headlights should be covered with grease.
✓
D
Headlights should only be used in the rain.
✓
QUESTION 19 / 25
If another driver is tailgating you, you should:
Choose one answer below.
A
Move into the left lane.
✓
B
Speed up.
✓
C
Increase the space in front of your vehicle.
✓
D
Flash your lights.
✓
QUESTION 20 / 25
When checking the engine compartment, you should check all of the following, except:
Choose one answer below.
A
The engine oil level.
✓
B
The coolant level in the radiator.
✓
C
The windshield washer fluid level.
✓
D
The fuel level.
✓
QUESTION 21 / 25
During exercises that are not the straight line backing exercise, you may exit your vehicle to check its position no more than:
Choose one answer below.
A
One time.
✓
B
Two times.
✓
C
Three times.
✓
D
Four times.
✓
QUESTION 22 / 25
Before driving a vehicle with air brakes, you should ensure that the spring brakes come on automatically when:
Choose one answer below.
A
Air pressure falls below 45 psi.
✓
B
Air pressure falls below 20 psi.
✓
C
Driving downhill.
✓
D
Driving uphill.
✓
QUESTION 23 / 25
During a static leakage test, the maximum leakage rate for a triple combination vehicle with air brakes is ____ in a minute.
Choose one answer below.
A
3 psi
✓
B
5 psi
✓
C
7 psi
✓
D
9 psi
✓
QUESTION 24 / 25
When using mirrors while driving, you should:
Choose one answer below.
A
Look in the mirrors quickly.
✓
B
Look in the mirrors for extended periods of time.
✓
C
Use only the rearview mirror.
✓
D
Use only the driver’s side mirror.
✓
QUESTION 25 / 25
When changing lanes:
Choose one answer below.
A
You should move your vehicle quickly.
✓
B
You should move your vehicle slowly.
✓
C
The move should be made with a jerking motion.
✓
D
You do not need to use a turn signal.
✓
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