CDL Permit Practice B

WIP, CDL Permit Test General Knowledge 1

Which of these statements about speed management is true?

You should be able to stop within the distance that you can see ahead.

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

Not allow them to do it.

When arriving at the destination announce:

All of the above.

In a pressurized cooling system, coolant level should be checked:

None of the above.

When hauling hazardous material on a bus, the total weight for any one type of substance cannot exceed?

100

If your bus has an emergency exit door, it must:

Be secured when operating the bus.

When must a driver's inspection report be completed?

At the end of every work day.

Federal regulations do not allow a driver to drive if he or she is:

Taking medication of any kind or impaired, and the condition interferes with the ability to drive safely.

Which of the following types of cargo can never be carried on a bus with riders?

Tear gas.

You do not have to stop but slow down at:

All of the above.

An oncoming vehicle keeps its high beams on. You should deal with this hazard by:

Looking to the right side of your lane.

In general, the best braking technique to use in maintaining a safe speed when driving on a downgrade is:

Use the snub braking method.

Which of these statements about gear ranges in buses with automatic transmissions is true?

Lowest ranges should be used for greater engine braking on downgrades.

The proper time to cancel your turn signal for a lane change or turn is:

When the maneuver is complete.

If your bus becomes disabled on a freeway or expressway and you must stop on the left side of the road, it is best to stop so that the bus is:

At an angle to traffic with the front door facing the downstream side of traffic.

Which of the following must be closed while the bus is in motion?

Emergency windows.

If your bus leans toward the outside on a banked curve, you are:

Driving too fast.

How many folding aisle seats are allowed in a bus?

0

While crossing railroad tracks, you should _________ if your bus has a manual transmission.

Not shift gears.

During your pre-trip inspection, you should sign the previous driver's report only if no defects are listed on it.

The defects listed on it have been certified as either repaired or not needing to be repaired.

Whenever you stop for a break during your trip, you should

Check critical items such as the tires, brakes, and cargo tie-downs.

High beams should be:

Used whenever it is safe and legal to do so.

The safety release valve is located on the Air tanks and is used by?

Self-operated when the air pressure is above 150 PSI.

Which of these is a proper use of vehicle lights and flashers?

All of the above.

Which of the following is a key steering component?

Gear box.

How can you start moving without rolling backward?

All of the above.

Which is NOT one of the four basic skills that operating a commercial motor vehicle requires?

First-aid certification.

What is the average reaction distance?

61 feet

The most common cause of serious vehicle skids is:

Driving too fast for road conditions.

The distance that you should look ahead of your vehicle while driving amounts to about _____ at highway speed.

¼ mile

You must park on the side of a level, straight, two lane road. Where should you place the three reflective triangles?

One within 10 feet of the rear of the vehicle, one about 100 feet to the rear, and one about 100 feet from the front of the vehicle.

If you are convicted for driving under the influence while driving a commercial vehicle, and this is your first offense, you will most likely get:

At least a one-year suspension of your CDL

Front end header boards:

Protect you from your cargo in case of collision and block the forward movement of your cargo

The formula for stopping distance with air brakes is?

Perception distance, reaction distance, brake lag distance, and effective braking distance

If a vehicle transporting explosives is involved in an accident, what should be done before moving the vehicles apart?

All of the above.

Which of these statements about double-clutching and shifting is true?

You can use the tachometer to tell you when to shift.

How long can an unsafe vehicle be put out of service?

Two of the above.

Which of these should be considered a hazard?

All of the above.

Of the following choices, which best describes how you should use your brake pedal when going down a steep hill?

A light steady pressure.

Inspection of vehicles by the driver is mandated by:

Federal and state laws.

When you dim your lights at night, what should you do about your speed?

Slow down.

Of the following statements, which is true about speed?

You should choose a speed that will allow you to stop within the distance you can see ahead.

While on a trip, what should you do on a regular basis?

All of the above.

The emergency door on your bus must:

Always be closed when operating the bus.

Which of the following best describes the basic characteristics of the vehicle's center of gravity?

The center of gravity can make the vehicle more likely to tip over on a curve if it is high.

The vehicle inspection is intended for which purpose?

To find problems that could cause a crash or breakdown.

For the best control of your vehicle in a curve, which maneuver is best?

Slow to a safe speed before entering the curve, then accelerate slightly through the curve.

Which is true regarding the use of reflective triangles to mark a stalled or wrecked vehicle?

If a hill or curve prevents approaching vehicles from seeing your vehicle within 500 feet, the reflective triangle should be moved down the road to give adequate warning.

Inspections of your vehicle should be done:

Before and after a trip.

When driving at the posted speed limit, how far ahead should you look?

1/4 of a mile.

During a pretrip inspection of your brakes and suspension systems, which should be true?

All of the above.

What is the minimum tread depth requirement for front tires?

4/32 inch.

Which of these should you not do when you pass a vehicle?

When passing at night, turn on your high beams before your start to pass, and keep them on until you have completely passed the vehicle.

You may not operate with which of the following on the front wheels of your vehicle:

All of the above.

When you down-shift, you should:

Down-shift for a curve before you enter it.

The parking or emergency brake on a heavy vehicle can only be held in position by something that cannot leak away. An example would be:

Spring pressure.

A driver's brake may be adversely effected if they have the following substance on them:

All of the above.

Which of these could cause a vehicle to skid?

All of the above.

Steering wheel play of more than ______ can make it hard to steer.

10 degrees.

Which of the following is not a key part of the suspension system?

Pitman arm.

Which of the following should be on your bus at all times in case of an emergency?

All of the above.

A straight truck or bus air brake system should not leak at a rate of more than _____ with the engine off and the brakes released.

2 PSI per minute.

Which of these statements about drugs is true?

The use of drugs is a hazard.

Which of the following is not an emergency equipment item?

Shackle bracket.

What should you do if a low air pressure light and/or alarm activates while you are driving?

Bring the vehicle to a safe stop.

Which of the following would tell you a shipment contains hazardous materials?

All of the above.

Which of the following skills is not required to be demonstrated for safe operation of a commercial vehicle?

Passenger control.

An alcohol evaporator is designed to do what for your brakes?

To reduce the chance of ice in the air brake valve in cold weather.

You have been forced off the road. How should you safely move back onto the road?

If the shoulder is clear, stay on it until your vehicle has come to a stop and move back onto the pavement when it is safe.

Which of these statements about accelerating is true?

Rough acceleration can cause mechanical damage.

Which fires can you use water to put out?

Tire fires.

Air braking takes more time than hydraulic braking because?

Air takes more time to flow through the line than hydraulic fluid.

When the drive wheels lose traction and begin to spin, what should you do?

Remove your foot from the accelerator.

You should use your mirrors to check:

All of the above.

The proper way to hold the steering wheel is:

Firmly with both hands on opposite sides of the wheel.

The brake pedal in an air brakes system:

Controls the air pressure used to put on the brakes.

Of the following options, which is true about speed?

All of the above.

When backing a car, straight truck, or bus, you turn the top of the steering wheel:

Towards the direction you want to go.

If you are about to have an accident, you should remember:

You can almost always turn to miss an obstacle more quickly than you can stop.

Your truck or bus has dual parking control valves. For which of the following can it be used?

To release the spring emergency parking brakes to move short distances.

Which of these statements concerning tires and hot weather driving is true?

You should inspect your tires every two hours or every 100 miles when driving in very hot weather.

Why should you back toward the driver's side?

So you can see better.

Which of these is the most important thing to remember about emergency braking?

If the wheels are skidding, you cannot control the vehicle.

Modern air brakes systems combine three separate systems: the service brake system, the parking brake system, and:

The emergency brake system.

The basic fact about backing is:

It is always dangerous.

To check the free play of manual slack adjusters on "S cam" brake systems, you should park:

On level ground, chock the wheels, and turn of the parking brakes.

When backing, you should do so slowly because:

It is easier to correct steering errors.

To correct a drivewheel braking skid, you should:

Stop braking, turn quickly and countersteer.

The most common cause of vehicle skids is:

Driving too fast for road conditions.

The best way to reduce your chance of a backing accident is to:

Use a spotter to see what you cannot see.

Front wheel brakes are good under which of the following conditions:

All conditions.

Emergency stab braking is when you:

Put on the brakes as hard as you can until the wheels lock, let off the brakes, and then put brake on again when the wheels start to roll.

Buses can never transport:

More than 500 lbs total of allowed hazardous materials and no more than 100 lbs of any one class.

What is the job of the compressor governor?

It controls when air is pumped into the air tanks.

Controlled braking is also called:

Squeeze braking. 

A fully charged air system is typically:

125 PSI.

The braking power of the spring brake:

Depends on the service brakes being in adjustment.

A driver should not allow passengers on the bus if they are bringing which of the following:

Car batteries or gasoline.

All vehicles equipped with air brakes have:

A supply pressure gauge.

How far from a draw bridge should a bus stop?

50 feet.