CDL Practice Test (General Knowledge)
Questions and Answers
1.How long should the mud flaps on a truck and trailer be?
Answer Long enough to reach within 8 in of the roadway
2.If you're driving in town, how far will your recommended 12-15
second planning ahead measure in distance?
Answer about a single block
3.A bridge formula restricts the axle weight for axles which...
Answer are closer together
4.How soon should oil pressure rise to a normal level after starting the
engine?
Answer within seconds
5.If starting from a standstill on a hill, what's the best way to get moving?
Answer -
partly engage the clutch before you take your right foot off the brake
6.Driving on a highway, it is recommended that you monitor a quarter of a
mile ahead. At highway speeds, this equates to...?
Answer 12-15 sec
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17
,7.Descending a long downgrade, which of these will help you if you
have brake difficulties?
Answer -escape ramp
-a turn going uphill
-an open field
(all of the
above)
8.If you are tested and found to have a blood alcohol concentration below
0.04% but above 0.0, what will happen?
Answer You will be taken out of service for 24 hrs
9.Federal, State, and local regulations concerning cargo weight,
securement, and cover vary widely. Which should you obey?
Answer all of them
10.What are two of the most common causes of tire fires?
Answer Under-inflation and duals that touch
11.The minimum number of tiedowns on a load is...?
Answer 2
12.If your load protrudes more than 4 feet beyond the rear of your
vehicle, which of these do you need in Texas?
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17
, Answer -a red flag at least 12X12 in (day)
-a special permit
-a burning red visible light
(night) (all of the above)
13.If an accident victim is bleeding heavily, what should you do to help?
Answer apply direct pressure to the wound
14.If there is an obstacle in the road and you have a choice of directions
around it, why should you choose to go right?
Answer it will avoid driving into oncoming traffic
15.How can you avoid temporary night blindness from other drivers' lights?-
Answer look at the sidelines instead
16.If you have to stop on a divided highway, how should you place
your warning triangles?
Answer At 10ft, 100ft and 200ft, all facing approaching traffic
17.How should you position your trailer to check the alignment of your
mir- rors?
Answer straight with your cab
3/
17
Questions and Answers
1.How long should the mud flaps on a truck and trailer be?
Answer Long enough to reach within 8 in of the roadway
2.If you're driving in town, how far will your recommended 12-15
second planning ahead measure in distance?
Answer about a single block
3.A bridge formula restricts the axle weight for axles which...
Answer are closer together
4.How soon should oil pressure rise to a normal level after starting the
engine?
Answer within seconds
5.If starting from a standstill on a hill, what's the best way to get moving?
Answer -
partly engage the clutch before you take your right foot off the brake
6.Driving on a highway, it is recommended that you monitor a quarter of a
mile ahead. At highway speeds, this equates to...?
Answer 12-15 sec
1/
17
,7.Descending a long downgrade, which of these will help you if you
have brake difficulties?
Answer -escape ramp
-a turn going uphill
-an open field
(all of the
above)
8.If you are tested and found to have a blood alcohol concentration below
0.04% but above 0.0, what will happen?
Answer You will be taken out of service for 24 hrs
9.Federal, State, and local regulations concerning cargo weight,
securement, and cover vary widely. Which should you obey?
Answer all of them
10.What are two of the most common causes of tire fires?
Answer Under-inflation and duals that touch
11.The minimum number of tiedowns on a load is...?
Answer 2
12.If your load protrudes more than 4 feet beyond the rear of your
vehicle, which of these do you need in Texas?
2/
17
, Answer -a red flag at least 12X12 in (day)
-a special permit
-a burning red visible light
(night) (all of the above)
13.If an accident victim is bleeding heavily, what should you do to help?
Answer apply direct pressure to the wound
14.If there is an obstacle in the road and you have a choice of directions
around it, why should you choose to go right?
Answer it will avoid driving into oncoming traffic
15.How can you avoid temporary night blindness from other drivers' lights?-
Answer look at the sidelines instead
16.If you have to stop on a divided highway, how should you place
your warning triangles?
Answer At 10ft, 100ft and 200ft, all facing approaching traffic
17.How should you position your trailer to check the alignment of your
mir- rors?
Answer straight with your cab
3/
17
