General Knowledge7 (Drivingtests.org)

Which of these is true about the radiator shutters and the winterfront?

You should remove ice from the radiator shutters.

The engine may overheat if the winterfront is left open.

The winterfront should be closed tightly.

Before transporting a sealed load, you must check which of the following?

The cargo is not past its expiration date.

Your vehicle does not exceed height restrictions.

Your vehicle does not exceed weight restrictions.

The cargo is secured inside its containers.

At dawn or dusk, or in rain or snow, it can be hard to see and be seen. You can let others know you are there by:

Turning on the low-beam headlights.

Using your horn.

Turning on the inside cab light.

Which of these statements about engine overheating is true?

You should never shut off an overheated engine until it cools.

You should never remove the radiator cap on a pressurized system until the system has cooled.

If your engine overheats within 20 miles of the end of your trip, you should complete the trip and then check the problem.

Where should you keep the shipping papers?

Under the driver's seat.

Locked in the glove compartment.

In a pouch on the driver's door.

If you must drive in fog, what should you do?

Turn on your 4-way flashers.

Slow down before you enter fog.

Don’t stop along the side of the road.

Do all of these.

What should you do when approaching a hazard in a work zone?

Use your four-way flashers or brake lights to warn others.

Stop quickly and pull to the side of the road.

Swerve around it and get back into your lane.

You are driving in a rainstorm in the middle of the day. What following distance should you maintain behind the vehicle in front of you?

One car length for every 10 mph of speed.

The same following distance as under normal driving conditions.

Much more than under normal driving conditions

When getting ready to cross a bridge you should:

slow down to 20 mph.

read the weight limit sign.

straddle the line to stay in the middle of the bridge.

When backing, which of the following is FALSE?

Use a helper if possible.

Back toward the driver's side if possible.

Start in the proper position.

Use the highest reverse gear.

Which of the following statements about parking on the entrance and exit ramps is TRUE:

You may park on the ramps, but not during the rush hour.

You may never park on the ramps.

Parking on the ramps is allowed.

At night, with your low-beam headlights on, you can see:

500 feet ahead.

250 feet ahead.

350 feet ahead.

When making a left turn:

Start turning as soon as you reach the stop line.

Turn your steering wheel slightly to the left before you reach the intersection.

Drive to the center of the intersection before you start turning.

Which of the following can cause a skid?

Over-steering.

Driving too fast.

Over-braking.

All of these can cause a skid.

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

The air pressure of a tire decreases as the temperature of the tire increases.

If a tire is too hot to touch, you should drive on it to cool it off.

When driving in very hot weather, you should inspect your tires every two hours or every 100 miles.

During an inspection of hydraulic brakes, you should pump the brake pedal three times, then apply firm pressure to the pedal for five seconds. If the brakes are working properly,

the pedal should depress slightly.

the pedal should sink to the floor.

the pedal should not move.

Why is it important to shift gears properly?

To keep the oil flowing through the crankcase.

To help maintain control of the vehicle.

To keep the engine at the proper temperature.

Which of these statements about certain types of cargo is true?

Unstable loads such as hanging meat or livestock require extra caution on curves.

When liquids are hauled, the tank should always be loaded completely full.

Oversize loads can be hauled without special permits during daylight hours.

You are driving in the right lane of a four-lane, undivided road. Traffic is heavy. You come around a curve and then you notice a hazard ahead in your lane. You don’t have enough room to stop. What should you do?

Steer to the right.

Brake hard and brace for collision.

Steer into the left lane.

After you start the engine:

the engine temperature gauge will take 3–5 minutes to rise to normal.

the oil pressure gauge should take 35 minutes to rise to normal.

the coolant temperature gauge should begin a gradual rise to normal.

Which of these is NOT part of the pre-trip inspection of the engine compartment?

Worn electrical wiring insulation.

Condition of hoses.

Valve clearance.

Which of these statements about driving in areas with strong winds is true?

The lighter your vehicle, the less trouble you will have with the wind.

Wind is a big problem when your truck comes out of a tunnel.

You should drive alongside other vehicles to help break up the wind.

Which of these will happen if a tire blows out at highway speeds?

A vibrating feeling.

A loud hissing sound.

A rapid drop in speed to below 20 mph.

What should you do first when there’s a fire?

Contain the fire.

Report the fire.

Cover the fire.

Which of these statements about accelerating is true?

You should feel a "jerking" motion if you are accelerating your vehicle properly.

When traction is poor, more power should be applied to the accelerator.

Rough acceleration can cause mechanical damage.

For combination vehicles, which of the following statements about drive-wheel braking skids is true?

The trailer can push the tractor sideways.

Locked wheels have more traction.

This type of skid does not cause jackknifing.

In a combination vehicle, wet brakes increase the risk of:

Overheated brakes.

Hydroplaning at speeds over 30 mph.

Hydroplaning at any speed.

Jackknifing.

Which of these statements is NOT true about backing a heavy vehicle?

You should back and turn toward the driver's side when possible.

You should back slowly until you slightly bump into the dock.

You should use a helper and communicate with hand signals.

You were forced to leave the road in an emergency, and you are forced to return to the road before stopping on the shoulder. What should you do?

Using mirrors and turn signals, edge gradually back onto the road.

Using mirrors and turn signals, turn sharply to get back onto the road.

Drive on the shoulder to the next exit and then re-enter the road.

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

Double-clutching should only be used with a heavy load.

Double-clutching should not be used when the road is slippery.

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

When you’re starting off on dry, level pavement, it is usually necessary to do which of the following?

(a) Partly engage the clutch before you take your right foot off the brake.

(b) Apply the parking brake.

Neither (a) nor (b).

Which of these statements about using mirrors is true?

You should check your mirrors twice for a lane change.

There are blind spots that your mirrors cannot show you.

You should look at a mirror for several seconds at a time.

Extra care may be needed to keep your vehicle centered in your lane, because commercial vehicles:

Are often wider than other vehicles.

Often require a lot of room to change lanes.

Tend to sway from side to side.

Which of these is a danger of crossing railroad tracks on dirt roads?

Your tires could sink into the dirt and not cross the tracks.

You could get hung up halfway across.

The ground underneath the tracks might not be stable.

In which of the following situations should you use your horn?

To help you avoid a collision.

To greet a friend.

When you're changing lanes.

You are starting your vehicle from a stop. As you apply power to the drive wheels, they start to spin. You should:

Try a lower gear.

Take your foot off the accelerator.

Press harder on the accelerator.

Which piece of emergency equipment must be carried in a CMV?

Warning devices.

Seat belt cutter.

First-aid kit.

Which of these is important to check before driving in the winter?

Exhaust.

Tires.

Both of these need checked.

After you start the engine, which of the following will occur?

In 4–5 minutes, the oil pressure gauge will rise to normal.

The coolant temperature gauge will rise to normal operating temperature.

The manifold exhaust indicator gauge will rise to 180 degrees.

What should you do in thick fog?

Follow the taillights or headlights in front of you.

Assume that the fog will thin out after you enter it.

Pull off the road into a rest area or truck stop.

If you must drive in fog:

Use low-beam headlights and fog lights.

Use high-beam headlights and fog lights.

Use high-beam headlights and parking lights.

Which of the following may be a sign of tire failure?

Vehicle thumping or vibrating.

Vehicle fishtailing.

Both of these may occur.

How does vehicle weight affect stopping distance?

The stopping distance of a commercial vehicle is independent of its weight.

Loaded trucks take longer to stop than empty trucks, but this is not normally the case for buses.

Empty trucks can take longer to stop than loaded trucks, but this is not normally the case for buses.

You are testing the stopping action of service brakes on a hydraulic system. Which of these can mean there is a problem?

The vehicle pulls to one side when the brake pedal is pressed.

The brake pedal goes to the floor.

Both of the these are correct.

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