WI CDL PRACTICE TEST - GENERAL KNOWLEDGE

41. The speed limit is 55 mph. Traffic is heavy, moving at 35 mph. What's the safest speed in this situation?
25 mph
35 mph
45 mph
40 mph
42. When more cargo is piled up in a truck, the center of gravity moves:
to the right side of the truck.
to the left side of the truck.
closer to the ground.
higher up from the road.
43. You must have at least ________ tread depth in every major groove on front tires.
1/16 inch
4/32-inch
1/2 inch
2/32 inch
44. You, as a driver, are NOT responsible for:
inspecting the cargo.
ensuring the freshness of sealed cargo.
making sure that cargo is properly secured.
making sure the truck is not overloaded.
45. To prevent drowsiness before a trip, drivers should:
avoid scheduling trips for the middle of the night.
get adequate sleep.
avoid medications that cause drowsiness.
All of the above.
46. The most common cause of skidding is:
driving too fast for conditions.
surface water.
spilled oil.
black ice.
47. If you must stop on or by a one-way or divided highway, you must place warning devices ___ feet, ___ feet, and ___ feet toward the approaching traffic.
15; 150; 300
20; 200; 400
5; 50; 100
10; 100; 200
48. The air storage tanks:
protects the tank and the rest of the system from too much pressure.
are connected to the engine through gears or a v-belt.
are used to hold compressed air.
stop the compressor from pumping air.
49. Foundation brakes are used:
only with the front wheels.
at each wheel.
only with the rear wheels.
only with the right wheels.
50. Before you back into an area, you should __________ overhanging hazards like trees, branches or electric wires.
ask someone else to check for
look out of the windows for
check your mirrors to be aware of
get out of the vehicle and check for
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