CDL HAZMAT PRACTICE TEST MARYLAND
11.
The parking brake:
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should be used when you need to apply the brakes firmly.
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should be used when driving in bad weather.
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should be used whenever you park.
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All of the above.
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12.
The person watching the loading or unloading of a cargo tank must be within _______ of the tank.
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50 feet
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25 feet
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15 feet
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5 feet
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13.
You should flash your brake lights to warn drivers behind you when:
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you see a bus stops in the roadway ahead to unload passengers.
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you see you'll need to slow down.
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you see a hazard that will require slowing down.
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All of the above.
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14.
When the temperature drops:
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bridges will not freeze.
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bridges will freeze before the road will.
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bridges usually freeze after other parts of the roadway.
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None of the above.
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15.
Which of the following statements about retarders is NOT correct?
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Retarders reduce reduce brake wear.
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You should turn the retarder off whenever the road is wet, icy, or snow covered.
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Retarders help slow a vehicle, reducing the need for using brakes.
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Retarders help you avoid skids.
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16.
When fueling a placarded vehicle, someone must always be:
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within 15 feet of the pump with a fire extinguisher.
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at the emergency power shut off for the pump.
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watching the fueling from a safe distance.
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None of the above.
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17.
You are driving on a steep downgrade in the proper low gear. Your "safe" speed is 40 mph. When your speed reaches 40 mph, you should:
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apply the brakes to quickly reduce your speed to 25 mph, and then release the brakes.
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increase your speed to approximately 45 mph, and then apply release the brakes.
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apply the brakes to gradually reduce your speed to 35 mph, and then release the brakes.
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maintain your current speed, and apply the brakes when you reach 50 mph to gradually reduce your speed to 40 mph.
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18.
When your drive wheels have poor traction, you should:
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only use the retarder on the front wheels.
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turn the retarder on.
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only use the retarder on the rear wheels.
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turn the retarder off.
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19.
If you notice a cargo leak, you should identify the hazardous material leaking:
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by using the shipping papers.
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by smell.
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by touching the material.
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by taste.
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20.
An ABS system:
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keep your wheels from locking when you brake hard.
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helps you avoid skids caused by over braking.
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gives you more control over the vehicle during braking.
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All of the above.
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