CDL GENERAL KNOWLEDGE TEST (TN) - PRACTICE TEST

41. 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.
stop the compressor from pumping air.
are used to hold compressed air.
42. How does ABS help you?
ABS helps you avoid wheel lock up and maintain control when you brake hard on slippery surfaces.
ABS makes stab braking more effective.
ABS always shortens your stopping distance.
ABS replaces your normal brakes and helps you  to stop faster.
43. Vehicles must be equipped with emergency equipment, including:
spare electrical fuses.
a safety valve.
2 battery-operated flashlights.
horn.
44. After starting the engine, you are looking at the oil pressure gauge. Oil pressure should come up to normal within:
10 minutes.
5 minutes.
seconds.
2 minutes.
45. Which of the following statements about retarders is NOT correct?
Retarders reduce reduce brake wear.
Retarders help you avoid skids.
Retarders help slow a vehicle, reducing the need for using brakes.
You should turn the retarder off whenever the road is wet, icy, or snow covered.
46. To back-up safely, you should:
start in the proper position.
look at your path.
use mirrors on both sides.
All of the above.
47. If the low air pressure warning light comes on, you should:
call for help.
stop immediately.
continue to drive normally.
set the parking brake.
48. If you are driving a 30 foot vehicle at 35 mph, you should leave at least _______ between your vehicle and the vehicle in front of you.
2 seconds
1 seconds
3 seconds
4 seconds
49. An item that is 15 feet long placed on a flatbed trailer should have at least:
2 tie-downs.
3 tie-downs.
1 tie-down.
15 tie-downs.
50. Skids caused by acceleration can usually be stopped by:
taking your foot off the accelerator.
swerving to the left.
applying the brakes firmly.
swerving to the right.
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