Wisconsin CDL — General Knowledge Practice Test 1

1.A Class C vehicle is one at or under 26,000 pounds that meets which condition?
Tows a trailer over 10,000 poundsHas more than four axlesCarries 16+ people or transports placarded hazmatIs registered out of state
2.After stopping on the shoulder, within how many minutes must the warning devices be placed out?
Within 20 minutesWithin 10 minutesWithin 45 minutesOnly before you drive away
3.When is the space beneath a vehicle especially small?
When the vehicle is emptyWhen the vehicle is heavily loadedOnly on smooth pavementOnly when parked
4.Why should you avoid using the brakes while making a quick emergency turn?
It wears out the tiresIt can lock the wheels and cause a skidIt drains the air tanksIt is against the law
5.What sets road rage apart from ordinary aggressive driving?
It happens only in heavy trafficIt is the same as speedingIt involves intent to harm or assault anotherIt applies only to new drivers
6.Which description matches a Class A commercial vehicle?
A single truck over 26,000 pounds towing nothingA combination over 26,000 pounds towing a unit over 10,000 poundsAny bus seating 16 or more peopleA small van hauling hazardous materials
7.A crossbuck at a rail crossing requires you to do what for an approaching train?
Give the train the right of wayExpect the train to yield to youProceed after slowing slightlyCross only if no gate is present
8.When should you shift into a low gear for a downgrade?
Only if the brakes begin to fadeBefore you start down the gradeAt the steepest point of the gradeAfter reaching the bottom
9.When a driver is tailgating you, why should you avoid speeding up?
Speeding up saves fuelIt is safer to be tailgated at a lower speedSpeeding up is illegal for trucksYour brakes work better when fast
10.How do objects appear when viewed in a convex ('fisheye') mirror?
Larger and closer than they areThe exact size and distanceWider but with no distortionSmaller and farther away than they are