NC CDL HAZMAT TEST - PRACTICE TEST
21.
When going down grades, you should:
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put the transmission in Neutral.
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shift up.
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downshift to a lower gear.
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rely solely on engine braking to reduce your speed.
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22.
If you are driving on a slippery road, you should:
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use ABS to improve traction.
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adjust your speed to conditions.
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decrease your following distance.
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apply the brakes during turns.
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23.
Some packages of radioactive materials bear a number called the "transport index", which tells:
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if the material is safe to transport.
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the degree of control needed during transportation.
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the weight of the package.
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how the package was sealed.
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24.
If the drive wheels start to skid:
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accelerate slightly to regain control.
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push in the clutch to let them turn freely.
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use the brakes to slow down.
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All of the above.
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25.
Which of the following hazard classes bears a "transport index" in order to determine how much of it can be loaded on a single vehicle for transport?
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Class 8 (Corrosive Liquids)
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Class 7 (Radioactive Materials)
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Class 1 (Explosives)
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Class 3 (Flammable Liquids)
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26.
Passive railroad crossings:
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do not require you to recognize the crossing.
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require drivers to decide if there is sufficient clear space to cross safely.
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have a traffic control device installed at the crossing to regulate traffic.
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All of the above.
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27.
In mountain driving, to select a safe speed you should:
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go 5 mph slower than the vehicle ahead.
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follow the vehicle in front of you.
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select a speed that's not too fast for the weight of your vehicle and cargo, the length and steepness of the grade, and road and weather conditions.
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go slightly faster than the speed limit.
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28.
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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100 to 200
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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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29.
Which of the following statements about backing heavy vehicles is true?
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You should avoid backing whenever you can.
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Always back as quickly as possible.
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Back to the right side so that you can see better.
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The helper should stand where you cannot see the helper.
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30.
When a tire fails, you should:
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brake in a way that will keep your
vehicle in a straight line.
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apply the brakes as hard as you can without locking the wheels.
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stay off the brake.
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push the brake pedal down gradually.
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