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CDL PRACTICE TEST (TX) - GENERAL KNOWLEDGE TEST

21. When you need to brake, you should warn the drivers behind:
by flashing your brake lights.
by making gestures.
by changing lanes.
by turning on the 4-way emergency flashers.
22. The Gross Vehicle Weight Rating (GVWR) is:
the value specified by the manufacturer as the loaded weight of a vehicle, including cargo and trailers.
the value specified by the manufacturer as the loaded weight of a combination vehicle.
the minimum weight that must be hauled by a vehicle, as specified by the manufacturer.
the value specified by the manufacturer as the loaded weight of a single vehicle.
23. Stab braking cannot be used in vehicles with:
parking brakes.
air brakes.
spring brakes.
anti-lock brakes.
24. Blocking _______________ to keep it from sliding.
is used in the front, back, and/or sides of a piece of cargo
is used only in the back of a piece of cargo
goes from the upper part of the cargo to the floor
None of the above.
25. A hazard is:
Something you must stop for.
Any road user or road condition that is a possible danger.
A dangerous material.
Something you can easily avoid.
26. When a vehicle goes around a corner, the rear wheels:
follow the same path as the front wheels.
will lock up.
will turn freely.
follow a different path than the front wheels.
27. If there is a fire in your vehicle, do NOT:
park away from buildings and other vehicles.
park in an open area.
pull into a service station.
notify emergency services.
28. What factors can cause brakes to fade?
Gravel and tar.
Excessive heat and brakes out of adjustment.
Slippery surfaces and shaded areas.
Dirt roads and in unpaved yards.
29. To prevent getting sleepy while driving, you should:
keep cool by opening the window.
close the vent.
drive alone whenever possible.
keep the cab warm.
30. When a vehicle is hydroplaning:
your brakes won't work.
the spray from large trucks reduces visibility.
the clutch is stuck.
the tires lose their contact with the road.
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