CO CDL HAZMAT TEST - PRACTICE TEST
21.
If your vehicle is placarded, carries any amount of chlorine or has cargo tanks used for hazardous materials, you must stop _______ feet before the nearest railroad track.
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5 to 15
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50 to 100
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15 to 50
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100 to 200
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22.
If stopped on a hill, how can you start moving without rolling back?
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Press on the gas pedal, even if you have to roll back a little.
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Release the parking brake before you have applied enough engine power to keep from rolling back.
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Partly engage the clutch before you take your right foot off the brake, put on the parking brake if necessary.
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None of the above.
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23.
________ must choose the safest route to transport placarded radioactive materials.
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The shipper
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The driver
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The carrier
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All of the above.
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24.
Who must certify that the package has been prepared according to the rules?
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The helper
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The carrier
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The driver
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The shipper
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25.
How can you tell if your vehicle is equipped with ABS?
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Trailers will have yellow ABS malfunction lamps on the left side.
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Look for yellow ABS malfunction lamps on the instrument panel.
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Look under the vehicle for the wheel speed sensor wires coming from the back of the brakes.
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All of the above.
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26.
After an accident, an improper use of flares could cause:
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the springs to put on the brakes.
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the vehicle to slide back and forth.
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air pressure to build from 50 to 100 psi within 2 minutes.
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a fire if spilled fuel is on the ground.
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27.
How often should you check the tires if your placarded trailer has dual tires?
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Once a year.
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Once every 12 hours.
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At the beginning of each trip and each time the vehicle is parked.
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Once a month.
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28.
What should you do if your vehicle starts hydroplaning?
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Leave the road completely.
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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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Accelerate slightly, then push in the clutch to slow down.
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29.
If you have to drive off the road, you should:
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keep one set of wheels on the pavement, if possible.
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brake as hard as you can to maintain control.
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fully apply the brakes until your speed has dropped to about 20 mph.
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leave the road completely.
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30.
After starting the engine the coolant temperature should:
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hold steady.
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rise quickly.
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slowly decrease.
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rise gradually.
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