DE CDL HAZMAT PRACTICE TEST
11.
If corrosive materials leak during transportation, the parts of the vehicle exposed to corrosives must:
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be washed with water.
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be left to air dry.
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be washed with acid.
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be washed with oil.
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12.
You are driving a vehicle with air brakes when the low air pressure warning light and buzzer come on. You should:
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apply the brakes as hard as you can.
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slow down and test your brakes.
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pull off the road and stop immediately.
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activate your hazard lights and drive to the nearest place where you can stop.
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13.
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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At the beginning of each trip and each time the vehicle is parked.
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Once a month.
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Once every 12 hours.
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14.
What factors can cause brakes to fade?
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Slippery surfaces and shaded areas.
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Excessive heat and brakes out of adjustment.
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Dirt roads and in unpaved yards.
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Gravel and tar.
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15.
To know how much space you should keep in front of you:
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wait until the vehicle ahead of you passes a clear landmark, then count off the seconds until you reach the same spot.
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estimate how many seconds it would take you to reach the vehicle ahead.
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estimate how many vehicle lengths there are between you and the vehicle ahead.
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None of the above.
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16.
When going down a steep downgrade, you should primarily brake using:
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the braking effect of the engine.
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the parking brake.
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the service brakes.
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the emergency brake.
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17.
When driving in very hot weather, you may have to:
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watch out for black ice.
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decrease your following distance.
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increase your speed until the tires cool off.
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reduce your speed to prevent overheating.
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18.
You must have at least 4/32 inch tread depth in every major groove on front tires and at least ___ inch on other tires.
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2/32
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1/32
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4/32
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3/32
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19.
Do you need to stop before a railroad-highway crossing if you are hauling 100 pounds of Division 4.3 (dangerous when wet) materials?
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Only if you are driving at night.
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Only when you are driving and hear a siren coming.
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No.
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Yes.
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20.
Non-bulk packaging means a packaging which has:
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a maximum capacity of 450 L (119 gallons) or less as a receptacle for a liquid.
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a water capacity greater than 908 kg (2,000 pounds) or less as a receptacle for a gas.
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a maximum net mass less than 200 kg (441 pounds) and a maximum capacity of 225 L (60 gallons) or less as a receptacle for a solid.
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All of the above.
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