Knowledge Test Class B - California Cdl

1 . If required to complete a vehicle inspection report in writing, the report must be signed:

Everyday. Only if defects were noted and certified to have been repaired. Only if repairs are estimated to cost more than $1,000. Click Here Full Cheat Sheet

2 . Which of the following is not required safety equipment for a commercial motor vehicle?

A fire extinguisher Spare electrical fuses (unless equipped with circuit breakers) A siren Take a FREE Practice Test Now

3 . Routine vehicle inspections should be done to ensure:

Safety. Good gas mileage. Comfort. Take a FREE Practice Test Now

4 . If an air compressor is belt-driven, the belt should be routinely checked to ensure that it is:

Thin. Properly tightened. Cracked. Take a FREE Practice Test Now

5 . To avoid a hazard:

You should always steer to the left. You may be able to drive onto the shoulder. You should steer sharply in one direction. Click Here Full Cheat Sheet

6 . What tells you how much pressure is in your vehicle's air tanks?

The supply pressure gauge The ABS malfunction lamp The tractor protection valve Take a FREE Practice Test Now

7 . Using the brakes creates heat. If too much heat is produced:

The brakes may not work. The brakes may squeak more than usual. The brakes will brake unevenly. Take a FREE Practice Test Now

8 . How are violation points against a CDL calculated?

Violation points against a CDL have the same value as points against a non-commercial license. Violation points against a CDL have one and a half times the value of points against a non-commercial license. Violation points against a CDL have one-half of the value of points against a non-commercial license. Take a FREE Practice Test Now

9 . Most heavy trucks with manual transmissions require ____ to change gears.

Single clutching Double clutching Triple clutching Click Here Full Cheat Sheet

10 . Cargo being transported should be checked:

Only before the trip. Before the trip and again within the first 50 miles of the trip. Only by the loading personnel. Take a FREE Practice Test Now

11 . If there is a fire in your vehicle, you should not:

Park in an area away from buildings, trees, brush, and other vehicles. Pull into a service station. Notify emergency services of your problem and your location. Take a FREE Practice Test Now

12 . When completing an offset back/right parking maneuver, you should:

Pull straight forward, then drive straight back. Drive straight back, then pull forward to the left. Pull straight forward, then back to the right. Take a FREE Practice Test Now

13 . What must be done if a load extends four or more feet beyond the rear of a truck?

A red or orange flag must be placed on the end of the load. The truck may only be driven between 6 p.m. and 3 a.m. A vehicle with flashing lights must drive behind truck with the load. Click Here Full Cheat Sheet

14 . During an applied leakage test, the maximum leakage rate for a double combination vehicle is ____ in a minute.

2 psi 4 psi 6 psi Take a FREE Practice Test Now

15 . An encroachment is when:

A driver does not appear for their scheduled basic skills test. A vehicle touches an exercise boundary line during the basic skills test. A driver fails one section of the basic skills test. Take a FREE Practice Test Now

16 . If the low pressure warning signal activates while you are driving, you should:

Continue driving normally. Exit the road and park as soon as safely possible. Stop where you are and park. Take a FREE Practice Test Now

17 . Driving with a minimum blood alcohol concentration (BAC) of ____ will result in license suspension for at least one year.

0.04 percent 0.08 percent 0.1 percent Click Here Full Cheat Sheet

18 . If a tire fails, you should:

Use the brakes. Stay off the brakes. Swerve. Take a FREE Practice Test Now

19 . A commercial motor vehicle driver:

May use any cell phone while driving. May only use a hands-free cell phone while driving, if permitted. May only use a cell phone while driving on rural roads. Take a FREE Practice Test Now

20 . A danger of swerving to avoid a hazard while driving a large truck is that:

The truck may miss the object. The truck may flip over. The truck may stay in the same lane. Take a FREE Practice Test Now

21 . When you are about to start down a hill, you should switch into a ____ gear.

Higher Faster Lower Click Here Full Cheat Sheet

22 . When stopping a manual transmission vehicle, you should:

Push the clutch in when the engine is close to idle. Push the clutch out when the engine is close to idle. Shift into neutral when the engine is close to idle. Take a FREE Practice Test Now

23 . Which of the following is not a good rule when using turn signals?

Signal early. Signal well before a turn or lane change. Signal continuously. Do not cancel a signal until the turn is completed. Don’t over-signal. If no one is near you, there is no need to signal. Take a FREE Practice Test Now

24 . During a walk-around inspection, ensure there are no cracks on the brake drums that are more than ____ of the width of the friction area.

One half One quarter One third Take a FREE Practice Test Now

25 . When the spring brakes are on, you should never:

Turn on the lights. Turn off the vehicle. Push down the brake pedal. Click Here Full Cheat Sheet

26 . Which of the following is true?

It is safe to drive on a tire that is missing one or two lug nuts. A cracked lock ring on a rim is safe if you are not driving faster than 55 mph. A missing clamp on a rim is dangerous and should be corrected. Take a FREE Practice Test Now

Study tip: Reduce your study time from hours to minutes with a DMV exam “Cheat Sheet” 99.2% of people who use the cheat sheet pass the FIRST TIME Click Here Full Cheat Sheet

27 . An air brake-equipped vehicle traveling at a speed of 55 mph under ideal driving conditions will need approximately ____ to come to a complete stop.

100 feet 250 feet 450 feet Take a FREE Practice Test Now

28 . The leakage rate for a triple combination vehicle with air brakes should be no more than ____ in one minute during a static leakage test.

8 psi 5 psi 3 psi Take a FREE Practice Test Now

29 . In cool weather, as the temperature begins to rise and ice begins to melt:

It is usually safe to drive. The road will become even more slippery. Traction will increase. Click Here Full Cheat Sheet

30 . When backing with a trailer:

You should not back up in a straight line. You should not correct drift until you are far off course. You should frequently pull forward to reposition the vehicle. Take a FREE Practice Test Now

31 . When stopping in an emergency situation, you should:

Veer your trailer to the right and stop. Stop in a straight line. Veer your trailer to the left and stop. Take a FREE Practice Test Now

32 . The ____ tells a driver how much pressure is in the air tanks.

Application pressure gauge Air compressor governor Supply pressure gauge Drum brake Take a FREE Practice Test Now

33 . Which of the following is not a cause of hydraulic brake failure?

Loss of hydraulic pressure Brake fade on long hills Downshifting Click Here Full Cheat Sheet

34 . On any upgrade, gravity will:

Speed your vehicle up. Slow your vehicle down. Not impact your speed. Take a FREE Practice Test Now

35 . Air tank drains:

Should not be used in cold weather. Are helpful to remove water and oil from the air tanks. Are used to move air to the brakes. Take a FREE Practice Test Now

36 . When you double your speed from 20 to 40 mph, your vehicle's stopping distance is:

Doubled. Tripled. Quadrupled. Take a FREE Practice Test Now

37 . A hazardous materials placard may be no smaller than:

Four square inches. Seven square inches. 10 ¾ square inches. Click Here Full Cheat Sheet

38 . A pre-trip inspection should include:

A check of the engine oil level. Removing coolant. Washing the tire rims. Take a FREE Practice Test Now

39 . Which of the following is not part of a vehicle’s air brake system?

Air gauges Low pressure warning device Air filter Take a FREE Practice Test Now

40 . To inspect slack adjusters on S-cam brakes, you need to:

Park on a hill and test the brakes. Put on gloves and push in the slack adjusters. Chock the wheels and disengage the parking brake. Take a FREE Practice Test Now

41 . Having weight loaded in a way that creates a high center of gravity:

Increases the likelihood of a rollover. Increases the likelihood that items will fall down. Increases the difficulty of unloading the cargo. Click Here Full Cheat Sheet

42 . If using spring brakes when hauling a heavy load, a complete stop will:

Be impossible. Take a long time. Take a short amount of time. Take a FREE Practice Test Now

43 . A safety valve is set to open at ____ pounds per square inch (psi).

100 150 200 Take a FREE Practice Test Now

44 . Texting while driving is especially dangerous because:

It is both a mental and physical distraction. A message may be upsetting to the driver. People like to read and may become too engaged in their phones. Take a FREE Practice Test Now

45 . When driving on a long downhill slope, you should brake by:

Only using the brakes. Mostly using the brakes and occasionally downshifting. Downshifting and then using the brakes. Click Here Full Cheat Sheet

46 . What does an air compressor do in an air brake system?

It pumps air into the air storage tanks. It fills the tires. It moves air to the back of the truck. Take a FREE Practice Test Now

47 . An empty truck:

Requires a shorter stopping distance than a full truck. Requires a longer stopping distance than a full truck. Takes the same distance to stop as a full truck. Take a FREE Practice Test Now

48 . When you need to stop in an emergency, you should:

Lock the wheels and skid to a stop. Stop in a way that keeps your vehicle in a straight line. Stop in a way that turns your vehicle. Take a FREE Practice Test Now

49 . Anti-Lock Braking Systems (ABS):

Reduce a vehicle's normal braking capacity. Are in addition to other braking systems and do not reduce a vehicle's braking power. Are not effective on larger vehicles. Click Here Full Cheat Sheet

50 . An application pressure gauge shows:

How much air pressure is being applied to the brakes. How much air pressure is available. How much air pressure is required to stop a vehicle. Take a FREE Practice Test Now