Hold compressed air for the brakes.

Should be drained of excess air after every trip.

You should first walk the area to become more familiar with obstacles.

You should rely on your mirrors to guide you.

You should look straight ahead.

South Dakota CDL Double 2 - DMV Written Test Questions with Answers

Q.1

When should a driver sign a vehicle inspection report?

After every trip
If noted defects are repaired
After each fueling

Q.2

Of the following, which is not a recommended way to spot potential signs of trouble?

Watching the gauges
Using your senses
Checking critical items only at the beginning and end of a trip

Q.3

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.

Q.4

On a slippery road, a driver should:

Make turns as quickly as possible.
Refrain from passing slower vehicles.
Stop quickly.

Q.5

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.

Q.6

One way to avoid becoming an aggressive driver is to:

Talk on your cell phone while driving.
Question others' driving abilities.
Set realistic expectations regarding travel time.

Q.7

Since doubles and triples should be driven smoothly to prevent rollover, a driver should:

Drive on the shoulder whenever possible.
Drive faster than the posted speed limit.
Look far ahead of their vehicle to react to problems early.
Add extra grease to connections.

Q.8

Air storage tanks:

Are not allowed on a vehicle.
Hold compressed air for the brakes.
Should be drained of excess air after every trip.

Q.9

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.
Expect your vehicle to slow down more quickly than usual.

Q.10

When passing a row of parked vehicles, a driver should:

Stay close to the vehicles.
Watch for signs of a person exiting a vehicle.
Flash their headlights.

Q.11

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.

Q.12

Which of the following is not a possible cause of a fire?

Under-inflated tires
Electrical system failures
Flammable cargo
Rolling down the window

Q.13

A tank endorsement is:

Only required when transporting gases.
Only required when transporting liquids.
Required to transport both liquids and gases.
Optional when transporting hazardous materials.

Q.14

A speed limit posted on a curve:

Is likely acceptable to be driven in a double or triple.
Is the minimum speed that should be driven in a double or triple.
Could be too fast to be driven in a double or triple.
Should be increased when driving a double or triple.

Q.15

The trailer hand valve should be used:

To test the trailer brakes.
To check the connection between the trailer and tractor.
To accelerate.

Q.16

Who is responsible for the safe operation of a vehicle?

The driver
The mechanic
The owner

Q.17

If backing a truck:

You should rely on your mirrors to guide you.
You should first walk the area to become more familiar with obstacles.
You should look straight ahead.

Q.18

Pre-trip inspections:

Should never be done the same way two times in a row.
Should always be done in the same order.
Do not need to be done if the driver thinks the vehicle is in good operating order.

Q.19

When coupling a triple trailer rig:

The trailer immediately behind the cab should be coupled first.
The rear trailer should be coupled first.
The lightest trailer should be coupled first.
The order in which trailers are coupled is not important.

Q.20

You may be an aggressive driver if you:

Expect delays on your drive.
Slow down and maintain a reasonable following distance.
Make hand gestures that could anger other drivers.