The distance from road surface to a bridge or overpass.

The maximum legal height of a vehicle allowed in this state.

The maximum width of a vehicle allowed on the highway.

Iowa Car Driving Permit Test-20 - DMV Written Test Questions with Answers

Q.1

The amount of space you need to cross traffic depends on the:

Road conditions, weather conditions, and oncoming traffic.
Presence of a stop sign.
Use of your turn signals.
Cars behind you.

Q.2

A good defensive driver:

Drives slowly at all times.
Looks out for the actions of other drivers.
Travels at a constant speed.
Only drives in familiar areas.

Q.3

If a vehicle is equipped with airbags:

Seat belts should still be worn.
Seat belts do not need to be worn.
Seat belts should be worn behind the back.

Q.4

At a railroad crossing, you must:

Watch for vehicles that must stop at all railroad crossings (school buses, trucks carrying hazardous materials, etc.).
Watch for multiple trains.
Both of the above.

Q.5

If there is a deep puddle on the road ahead, you should:

Maintain the posted speed to make it through the water.
Avoid the puddle if possible.
Shift into neutral as you drive through the water.

Q.6

This sign means:

Bicycle crossing.
Stop.
Fines double in a work zone.
Stop ahead.

Q.7

At a red traffic light with a green arrow, you may proceed in the direction of the arrow if:

You first come to a complete stop.
You wait until the light changes.
You are in the proper lane and the roadway is clear.

Q.8

This yellow signs means:

The road ahead has many curves.
There is a sharp curve in the road ahead.
The road ahead may be slippery.

Q.9

Which of the following is a dangerous habit when driving in work zones?

Tailgating another vehicle
Failing to carefully watch for workers and moving equipment
Both of the above

Q.10

When driving under snowy or icy conditions, it is safe to use your cruise control as long as your speed is reduced.

True
False

Q.11

This sign means:

Watch for trucks.
Do not pass trucks.
Truck parking area ahead.
Steep downgrade ahead.

Q.12

When parking your vehicle on any hill:

One of your rear wheels should touch the curb.
Use your parking brake and leave the vehicle in "park."
Your front wheels should be parallel to the road, if there is no curb.

Q.13

This sign means:

All traffic must turn left.
No left turn.
No U-turn.

Q.14

To drive safely at night, you should:

Increase your following distance.
Not drive if you are tired.
Make sure your headlights are working properly.
All of the above.

Q.15

Passing is prohibited:

Within 100 feet of an intersection or railroad crossing.
If the vehicle you are following has a slow-moving vehicle symbol.
When using the right lane to pass a left-turning vehicle.

Q.16

To turn left from a multilane one-way street onto a one-way street, you should start your turn from:

Any lane (as long as it is safe).
The lane closest to the left curb.
The lane in the center of the road.

Q.17

You may be able to identify an aggressive driver by:

Their erratic and improper lane changes.
The number of passengers in their car.
Their tendency to drive slowly.

Q.18

When approaching a police car, tow truck, or utility vehicle that is parked along the road while displaying its flashing lights, what should you do?

Stop abruptly.
Continue as usual.
Change lanes and slow to a reasonable and safe speed as you pass.

Q.19

This sign indicates:

The distance from road surface to a bridge or overpass.
The maximum legal height of a vehicle allowed in this state.
The maximum width of a vehicle allowed on the highway.

Q.20

When preparing to make a left turn from a two-way street, you should drive:

Near the right-hand side of the road.
Near the centerline.
On the left of the centerline.

Q.21

If the roadway is wet or icy, you should:

Reduce your speed.
Drive at the posted speed.
Speed up.

Q.22

If a vehicle starts to skid on water, the driver should quickly apply the brakes.

True
False

Q.23

The best way to avoid loss of control under wet conditions is to increase your vehicle's speed.

True
False

Q.24

This road sign means:

Drive with caution and be ready to stop.
You must come to a complete stop.
Stop, if necessary.

Q.25

You are entering a crowded freeway. What should you do to merge into traffic?

Use your side and rearview mirrors and check your blind spots.
Use the acceleration lane to adjust your speed to match the speed of freeway traffic.
Yield to traffic already on the freeway.
All of the above.

Q.26

This sign means:

Steep downgrade.
Crossroad ahead.
No right turn.
Narrow bridge.

Q.27

You notice a vehicle defect which may affect the safe operation of your vehicle. You should:

Correct the defect as soon as possible.
Correct the defect when you can afford it.
Drive the vehicle at slower speeds.
Drive normally.

Q.28

This yellow sign means:

There is a sharp turn to the right.
The lane must turn right.
A right turn is permitted on a green arrow only.

Q.29

A speed restriction sign:

May be ignored in rainy, snowy, or icy conditions.
Has a triangular shape.
Is blue with black lettering.
Shows a recommended speed for a curve or turn.

Q.30

When approaching an intersection that is controlled by a flashing red traffic signal, you must:

Come to a complete stop, yield to oncoming traffic or pedestrians, then proceed.
Reduce your speed and proceed with caution.
Come to a complete stop and remain stopped as long as the light is red.

Q.31

If a traffic signal light is green and a police officer signals for you to stop, you should:

Obey the officer.
Obey the traffic signal.
Do what the vehicle in front of you does.

Q.32

Vehicles stopped behind a school bus with its red lights flashing must remain stopped until:

All students are off the bus.
The stop arm is retracted.
The stop arm is retracted and the bus resumes motion.

Q.33

To prevent hydroplaning, you should:

Ensure that your tires have good tread depth.
Ensure that your tires are properly inflated.
Reduce your speed when driving in the rain.
All of the above.

Q.34

Defensive driving is:

Identifying dangerous driving situations and taking action to avoid accidents.
Defending yourself against poor drivers by getting ahead of them in traffic.
Following the vehicle ahead of you at a close distance.
Quickly changing lanes and shifting in and out of traffic congestion.

Q.35

When approaching an intersection controlled by a flashing yellow light, you must:

Come to a complete stop at the intersection.
Maintain your normal speed.
Slow down and proceed with caution.

The amount of space you need to cross traffic depends on the:

A good defensive driver:

If a vehicle is equipped with airbags:

At a railroad crossing, you must:

If there is a deep puddle on the road ahead, you should:

This sign means:

At a red traffic light with a green arrow, you may proceed in the direction of the arrow if:

This yellow signs means:

Which of the following is a dangerous habit when driving in work zones?

When driving under snowy or icy conditions, it is safe to use your cruise control as long as your speed is reduced.

This sign means:

When parking your vehicle on any hill:

This sign means:

To drive safely at night, you should:

Passing is prohibited:

To turn left from a multilane one-way street onto a one-way street, you should start your turn from:

You may be able to identify an aggressive driver by:

When approaching a police car, tow truck, or utility vehicle that is parked along the road while displaying its flashing lights, what should you do?

This sign indicates:

When preparing to make a left turn from a two-way street, you should drive:

If the roadway is wet or icy, you should:

If a vehicle starts to skid on water, the driver should quickly apply the brakes.

The best way to avoid loss of control under wet conditions is to increase your vehicle's speed.

This road sign means:

You are entering a crowded freeway. What should you do to merge into traffic?

This sign means:

You notice a vehicle defect which may affect the safe operation of your vehicle. You should:

This yellow sign means:

A speed restriction sign:

When approaching an intersection that is controlled by a flashing red traffic signal, you must:

If a traffic signal light is green and a police officer signals for you to stop, you should:

Vehicles stopped behind a school bus with its red lights flashing must remain stopped until:

To prevent hydroplaning, you should:

Defensive driving is:

When approaching an intersection controlled by a flashing yellow light, you must:

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