CDL PRACTICE TEST - GENERAL KNOWLEDGE (NEW HAMPSHIRE)

21. On front tires, tread should be at least:
2/32 inch
4/32 inch
1/16 inch
4/16 inch
22. When approaching and driving through a work zone, you should:
use your 4-way emergency flashers or brake lights to warn drivers behind you.
observe the posted speed limits.
slow down.
All of the above.
23. ______ is operating a motor vehicle with the intent of doing harm to others.
Road rage
Aggressive driving
Excessive driving
All of the above.
24. To test your hydraulic brakes for leaks:
apply firm pressure to the brakes for five seconds, then pump them three times.
turn off the engine and and listen for leaks.
pump the brake pedal three times, then hold it down for five seconds.
None of the above.
25. If your vehicle catches fire while you are driving, you should:
park in an open area.
increase your speed to put out the fire.
immediately open the van or trailer doors.
pull into a service station.
26. When traction is poor, as in rain or snow, you should speed up very gradually. If you don't:
you could lose control.
you will exceed the speed limit.
the brakes will not work.
brake pressure will push the rod out.
27. The height of a vehicle's center of gravity is important for safe handling. Why?
Trucks with a high center of gravity can roll over at the posted speed limit for a curve.
A high center of gravity means you are less likely to tip over.
Trucks with a high center of gravity have better traction.
All of the above.
28. To keep cargo from shifting or falling off, cargo should have at least one tie-down for every ___ feet of cargo.
5
15
10
20
29. Drivers should inspect their cargo and its securing devices within the first _______ after beginning the trip.
25 miles
50 miles
100 miles
15 miles
30. Do NOT use a B:C fire extinguisher on:
grease fires.
gasoline fires.
electrical equipment fires.
wood fires.
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