IOWA SCHOOL BUS CDL PRACTICE TEST
11.
As a general rule, during an emergency student safety is best maintained by:
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evacuating the bus.
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planning the evacuation well in advance.
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keeping students on the bus.
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12.
Right after it starts to rain, the road is very slippery. Why?
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Because the water mixes with oil left on the road by vehicles.
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Because rain is very slippery.
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Because black ice may form on the road.
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13.
If ABS is not working:
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you will still have brakes.
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you should use the parking brake.
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you should use the emergency brake.
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14.
What should you do if your vehicle starts hydroplaning?
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Accelerate slightly, then push in the clutch to slow down.
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Apply the brakes and countersteer to regain control of the vehicle.
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Release the accelerator and push in the clutch to let the wheels turn freely.
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15.
The standee line is:
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a line on the floor of the bus showing riders where they cannot stand.
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a line on the floor of the bus showing riders where the driver cannot stand.
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is a line that passengers must stand on.
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16.
The brake and accelerator interlock system (if your bus has one):
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is used to shut the air off and put on the trailer emergency brakes.
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applies the brakes when the rear door is closed.
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should never be used in place of the parking brake.
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17.
One reason parked delivery trucks can present a hazard is:
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packages may fall out of the truck.
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they are often hard to see.
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their drivers are often in a hurry and may suddenly step out of their vehicle.
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18.
What factors can cause brakes to fail or fade?
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Brakes out of adjustment
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Excessive use of the service brakes
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All of the above.
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19.
Do not push or tow a disabled bus with riders aboard the vehicle, unless:
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the majority of the passengers agree.
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the distance to be covered is less than 5 miles.
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getting off would be unsafe.
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20.
If you have to drive off the road, you should:
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brake as hard as you can to maintain control.
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keep one set of wheels on the pavement, if possible.
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fully apply the brakes until your speed has dropped to about 20 mph.
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