MN CDL COMBINATION TEST - PRACTICE TEST

11. When the wheels of a trailer lock up, the trailer will tend to swing around. This is more likely to happen when:
the trailer is overloaded.
the trailer is empty or lightly loaded.
the trailer is fully loaded.
None of the above.
12. At passive railroad crossings, even if there are active railroad signals that indicate the tracks are clear, you must _________  to be sure it is safe to proceed.
go, look and put the transmission in neutral
stop, look, and listen
go, stop and listen
listen, look and stop
13. Never drive with landing gear only part way up. Why?
It may be harder to use.
It must be exactly 5 feet off the ground.
It makes it harder to brake.
It may catch on railroad tracks.
14. To avoid rollbacks when you start, you should:
put on the parking brake whenever necessary.
if you have manual transmission, partly engage the clutch before you take your right foot off the brake.
release the parking brake only when you have applied enough engine power.
All of the above.
15. Before transporting sealed loads, you should check:
a small sample of whatever is inside.
the special transit permit.
that you don't exceed gross weight and axle weight limits.
None of the above.
16. As part of the final air brake check, you should:
Check air compressor governor cut-in and cut-out pressure.
Test low pressure warning signal.
Test air leakage rate.
All of the above.
17. To avoid rollovers, you should drive slowly:
on ramps.
off ramps.
around corners.
All of the above.
18. To know how much space you should keep in front of you when driving at speeds below 40 mph, one good rule says you need at least ______ for each ______ of vehicle length.
2 seconds; 10 feet
3 seconds; 50 feet
1 second; 10 feet
1 second; 5 feet
19. If are being followed closely, you should:
flash your brake lights.
change lanes quickly.
decrease your following distance.
increase your following distance.
20. Who is responsible for inspecting the cargo?
The driver
The person who loaded and secured the cargo
The motor carrier
The shipper
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