Texas CDL — General Knowledge Practice Test 7

1.Hydroplaning, where the tires ride on a film of water instead of the road, is most likely when:
The road is wet and you drive too fast on worn or under-inflated tiresThe road is dry and newly pavedYou are stopped at a red lightYour tires are new and correctly inflated on a dry road
2.To recover from a drive-wheel (rear) skid caused by over-acceleration, you should:
Stop accelerating and steer in the direction you want to goPress harder on the acceleratorBrake as hard as possibleSteer the opposite way from where you want to go
3.A driver operating a commercial vehicle is considered driving under the influence at a blood alcohol concentration of:
0.04 or higher0.08 or higher0.10 or higher0.15 or higher
4.How many driver licenses may a commercial driver legally hold?
One for each state where you driveOnly oneAs many as you can obtainTwo: one for cars and one for trucks
5.Every commercial motor vehicle running on a Texas public highway must carry registration papers showing:
The number on the driver's medical examiner certificateWhat the vehicle weighs empty and the weight it is registered to haulA copy of the shipper's invoice for the current loadThe route the carrier has filed with the state
6.How much clearance should you leave to the left of a motorcycle or bicycle you are overtaking?
Roughly two feetAt least six feetA full lane width plus another ten feetWhatever the shoulder happens to allow
7.The crossbuck sign standing at a grade crossing tells a driver that:
Trains have the right-of-way over highway traffic thereOnly buses are required to stop at that crossingThe track is out of service and no longer usedRail traffic must yield to vehicles on the road
8.How much play in the steering wheel is a warning that the steering system may need repair?
More than about 10 degrees, roughly 2 inches on a 20-inch wheelAny play at all, even a fraction of an inch, is illegalUp to a full turn of the wheel is normalPlay in the steering wheel never matters
9.Why should you avoid driving right alongside another vehicle on a multi-lane road?
You could be trapped with no room to change lanes if a hazard appearsIt is illegal to ever be next to another vehicleIt always uses more fuelIt makes your mirrors work backwards
10.Your vehicle has come to a full stop at the roadside. What is the right order of the next steps?
Set the parking brake and leave the turn signal flashingCancel the turn signal, switch on the four-ways, set the parking brake, then select neutral or parkShut the engine off before touching any brakeChock the wheels before applying any brake at all