TRUCKER CLP QUIZLET 3 OF 4 EXAM QUESTIONS

PDF Download

TRUCKER CLP QUIZLET 3 OF 4 EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -62 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: The front trailer supports are up and the trailer is resting on the tractor. Make

sure:

There is enough clearance between the tops of the tractor tires and the nose of the trailer.There is enough clearance between the tractor frame and the landing gear.Neither.Both.

Answer:

both 1st and 2nd are correct

Question 2: The hand valve should be used

a) Only with the foot brake

b) Only when the trailer is fully loaded

c) To test the trailer brakes

Answer:

The hand valve should be used to test the trailer brakes.

Question 3: You need [ ] times more stopping dist. when stopping a combination at 40 mph than at 20 mph.3 4 8 10

Answer:

4 Question 4: How far should you crank up the front trailer supports (dollies) after coupling a semi-trailer?Raised halfway with the crank handle secured.Raised 3/4 way with the crank handle removed.Fully raised with the crank handle secured.Three turns off the top with the crank handle secured in its bracket.

Answer:

Fully raised with the crank handle secured.Question 5: You have a major leak in the service line and you put on the brakes. Service air

pressure will escape and cause the:

trailer emergency brakes to come on.trailer's tank pressure to be lost.tractor spring brakes to lock on.trailer's tank pressure to go to the tractor's system.

Answer:

You have a major leak in the service line and you put on the brakes. Service air pressure will escape and cause the trailer emergency brakes to come on.Question 6: There are 2 things that a driver can do to prevent a rollover. They are "Keep the

cargo as close to the ground as possible", and:

make sure the brakes are adjusted properly.keep both hands firmly on the steering wheel.Reduce the spd before entering turns Keep the 5th wheel free-play loose.

Answer:

There are 2 things that a driver can do to prevent a rollover. They are "Keep the cargo as close to the ground as possible", and "Reduce the spd before entering turns".

Question 7: You're hooking up a tractor and semi-trailer, and have backed up but are not under it. What should you do before backing under the truck?Hook up the electrical service cable.Hook up the emergency and service air lines.Connect the ground cable.Nothing, back up and secure the 5th wheel to the trailer.

Answer:

Hook up the emergency and service air lines.Question 8: You should not back a tractor under a trailer until the whole air system is: empty.at normal pressure.bled down to half max pressure.between 60 and 80 psi.

Answer:

You should not back a tractor under a trailer until the whole air system is at normal pressure.

Question 9: Which part of the kingpin should the locking jaws close around?

The shank.The head.The base.It doesn't matter.

Answer:

The shank.Question 10: The air leakage rate for a combination vehicle (engine off, brakes on) should be no more than ____ psi per minute.

• psi
• psi
• psi
• psi

Answer:

• psi

Question 11: In normal driving, some drivers use the trolley (hand) valve before applying the brake pedal to prevent trailer skids. Which of these statements is true?It should never be done.It results in less skidding than using the brake pedal alone.It lets the driver steer with both hands.It is the best way to brake in a straight line.

Answer:

It should never be done.Question 12: When backing up under a trailer, you should line up: about 15° off the line of the trailer.the right mirror along the right edge of the trailer.directly in front of the trailer.the edge of the tractor tires with the yellow line on the pavement.

Answer:

When backing up under a trailer, you should line up directly in front of the trailer.Question 13: Offtracking is:

Answer:

when the rear wheels follow a different path than the front wheels.Question 14: The safety catch for the 5th wheel locking lever must be: over the locking lever.under the locking lever.straight up.through the locking lever.

Answer:

The safety catch for the 5th wheel locking lever must be over the locking lever.Question 15: You're hooking up a tractor and semi-trailer, and you've connected both air lines.

Before backing under the trailer you should:

pull forward to test glad hand connections.supply air to the trailer system, then pull out the air supply knob to lock the trailer brakes.make sure that the trailer brakes are off.blow the horn twice to alert others.

Answer:

You're hooking up a tractor and semi-trailer, and you've connected both air lines. Before backing under the trailer you should supply air to the trailer system, then pull out the air supply knob to lock the trailer brakes.Question 16: When you get ready to back under the semi-trailer you should line up: directly in front of the trailer.about 12° off the line of the trailer.the left rear outer dual wheel with the kingpin.The kingpin with the edge of the driver's side locking jaw.

Answer: