1. The amount of liquid to load into a tank depends on:

a. The legal weight limits

b. The amount the liquid will expand in transit

c. Both of the above are true

d. None of the above are true

2. You should be extremely cautious when driving smooth bore tankers, especially when you are:

a. Driving against the wind

b. Going up or down a hill

c. Starting or stopping

d. All of the above

CDL Doubles Triples Sample Practice Questions:

1. If you must drive through deep puddles or flowing water, which of these should you not do?

a. Drive though quickly

b. Use a lower gear

c. Increase engine RPM

d. Take advantage of the water and let it wash off your tires etc.

2. Which of these statements about quick steering movements and doubles / triples is true?

a. Countersteering is easier with doubles / triples than with most other vehicles

b. You should put on the brakes at the same time you perform quick steering movements

c. Doubles / triples are no problem with a quick steering move

d. Doubles / triples flip over from quick steering moves more easily than many other vehicles

CDL Combination Test Sample Questions:

1. If the service air line comes apart while you are driving a combination vehicle but the emergency line stays together,

what will happen right away?

a. Nothing is likely to happen until you try to apply the brakes.

b. The trailer’s air tank will exhaust through the open line.

c. The emergency tractor brakes will come on.

2. You are coupling a semi trailer to your tractor but have not yet backed under. The trailer is at the right height when:

a. It will be raised slightly when the tractor is backed under it.

b. The kingpin is about 1 1/4 inches above the fifth wheel.

c. The end of the kingpin is even with the top of the fifth wheel.

CDL Test Free Download Sample Practice Test QUestions, Free CDL Commercial Drivers Exam sample questions for you. Checkout the free copy of these questions at Latest Exams Interview Questions

a. Small arms ammunition labeled orm-d

b. Car batteries

c. Explosives

d. Class 1 poison

2. You must stop your bus between:

a. 15 and 50 feet before a railroad crossing

b. 5 to 10 feet before a railroad crossing

c. 20 to 25 feet before a railroad crossing

d. None of the above

3. You may sometimes haul small arms ammunition, emergency shipments of drugs, or hospital supplies on a bus. The total

weight of all such hazardous materials must not be greater than ____ pounds.

a. 750

b. 500

c. 250

d. 100

4. If a rider wants to bring a car battery or a can of gasoline aboard your bus, you should:

a. Have the rider pay a second fare

b. Instruct them to sit next to an open window

c. Not allow them to do it

d. Tell them they must go to the rear of the bus

5. You must put a loaded bus into motion from a stopped position on a steep upgrade (4% or more). Which of these is the

best technique to follow when you have a bus with a manual transmission?

a. Accelerate hard and release the clutch quickly

b. Hold the foot brake until the clutch has been fully released.

c. Slowly release the clutch while releasing the parking brakes

d. Use the same method that is used when starting on a level surface or downgrade.

a. This material has no restrictions when shipped by air and/or water

b. There is no restrictions with this material if shipped by water only.

c. It is ok to ship this material by air only.

d. This material is only restricted when shipped by air and/or water.

2. Column 1 (symbols ) the “+” sign means:

a. The proper shipping name is in italics

b. The proper shipping name is invalid

c. The proper shipping name with out regard whether the material meets the definition of that class.

d. Do not use proper shipping name

3. A safe haven is one place you can leave a vehicle unattended that is hauling explosives. What is the best description of a safe haven?

a. Any property that has been government approved for this use.

b. Any property that is totally fenced in by an 8 foot high fence and has a guard on duty all day long.

c. Any property that is totally fenced in by an 8 foot high fence.

d. All of the above

4. If an “x” or “rq” is in the “hm” column of a shipping paper entry, the:

a. Shipment is regulated by hazardous material regulations.

b. Entry refers to the materials that must be top loaded.

c. Material listed on that line in the largest part of the shipment.

d. Material listed on that line in the smallest part of the shipment.

5. There are three lists that drivers, shippers and carriers use to find out if a material is regulated as hazardous. Which one of there choices is not one of those three lists?

a. List of hazardous substances and reportable quantities

b. Poison inhalation list

c. Epa dangerous materials list

d. Hazardous materials table
Related: CDL Sample Practice Test Questions

a. Pressure on the brake pedal is released and speed increases.

b. You have to push harder on the brake pedal to control your speed on a downgrade.

c. The brake feels spongy when pressure is applied.

d. Less pressure is needed on the brake pedal for each stop.

2. Air braking takes more time than hydraulic braking because air brakes:

a. Need to have airflow through the lines to work.

b. Use different brake drums.

c. Require heavier return springs.

d. All of the above.

3. In air brake vehicles, the parking brakes should be used:

a. To hold your speed when going downhill.

b. Whenever the vehicle is parked.

c. As little as possible.

d. Only during pre and post trip inspections.

4. The most common type of foundation brakes found on heavy vehicles is the:

a. Disc brakes

b. Wedge drum

c. S-cam drum

d. None of the above

5. Your truck or bus has a dual air brake system. If a low air pressure warning comes on for only one system, what should you do?

a. Reduce your speed and drive to the nearest garage for repairs.

b. Continue at normal speed and find a garage before the brakes lock.

c. Reduce your speed and test the remaining system while under way.

d. Stop. Safely park, and continue only after the system is fixed.
CDL Sample Air Brakes Test Questions, Free download sample practice test questions for commercial drivers license latest exam.

a. Not enough weight on the front axle.

b. Over acceleration.

c. Turning too sharply.

d. All of the above.

2. Every time you park your vehicle and shut the engine off you should:

a. Leave it in gear (if it has a manual transmission).

b. Apply the parking brake.

c. Turn the steering wheel as far to the left as you can.

d. Do all the above.

3. Should the pre-trip inspection report from the last driver be reviewed during your pre-trip inspection?

a. Yes

b. No

4. Which of these statements about downshifting for a long downhill grade is true?

a. The proper time to downshift is just after the vehicle starts down the hill.

b. It allows engine compression and friction to help the brakes slow the vehicle.

c. It should not be done with automatic transmissions.

d. It is necessary if the vehicle has retarders.

5. Your brakes can get wet when you drive through a heavy rain. What can this cause when the brakes are applied?

a. Lack of braking power

b. Trailer jackknife

c. Wheel lockup

d. All of the above
CDL Exam General Knowledge Sample Questions, Sample Practice Test QUestions