Iowa DMV CDL School Bus Quick Practice Test

Iowa DMV CDL School Bus Quick Practice Test For 2024

CDL Class A, B or C. Complete CDL driver training course. All the questions in this test are from the official DMV written exam. You can use our free online tests to evaluate how likely you are to pass the official DMV test. Or you can just cut to the chase and increase your chances of passing by upgrading to Premium Membership and unlock official DMV tests. In addition, you will also receive a master cheat sheet which contains all your state’s DMV questions and answers. Premium membership also unlocks a smart tracker which keeps an inventory of all incorrectly answered questions for easy, fast and effective revision. Practice with our free tests or hit Upgrade button below for premium access and increase your chances of passing your DMV written exam.

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Quick Facts:

Number of Questions – 20

Passing Percentage – 80%

Test Type – Free Test

1. If a parent asks you to change the location of a bus stop, you should:

Agree and pick up students at the new bus stop.
Continue to pick up students at the original bus stop.
Change the bus stop if the new location fits into your route.
Use both locations as bus stops.

2. What kind of brakes do most newer heavy-duty trucks use?

Single air brakes
Dual air brakes
Triple air brakes

3. Anti-Lock Braking Systems (ABS):

Reduce a vehicle's normal braking capacity.
Are in addition to other braking systems and do not reduce a vehicle's braking power.
Are not effective on larger vehicles.

4. During a vehicle inspection, ensure that lug nuts are all of the following, except:

Free of cracks.
Free of distortions.
Loose.
Free of rust.

5. Buses may carry:

Small arms ammunition.
Corrosive materials.
Poison gas.
Explosives other than small arms ammunition.

6. Radial and bias-ply tires:

Should be used together on all axles.
Should be used together, but only on the rear axle.
Should not be used together.

7. The inside rearview mirror is used to:

See passengers.
See potential hazards on the road.
See vehicles trying to switch lanes.

8. The area to the left of a school bus is considered especially dangerous to students because:

The sun’s reflection obscures the left side of the bus.
Passing vehicles are located to the left of the bus.
It is difficult to see the left side of any bus.
There is no door on the left side of the bus.

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