Utah CDL — General Knowledge Practice Test 8

1.What should you do with the parking brake whenever you leave your vehicle?
Set the parking brakeLeave it released to save the padsSet it only on hillsSet it only if the engine is running
2.Why should you allow a larger gap than a car would when pulling a heavy vehicle into traffic?
Heavier vehicles stop fasterLarge vehicles turn more sharplySlow acceleration and the space the vehicle needsTheir brakes cool more quickly
3.What is a good sign that a driver ahead may be impaired by alcohol, drugs, or drowsiness?
Signaling every lane changeWeaving or drifting across the roadKeeping a steady speed and laneSlowing smoothly for red lights
4.How many licenses is a commercial driver permitted to hold at one time?
OneTwo, one per classAs many states as they drive inThree at most
5.During a pre-trip check, how are hydraulic brakes tested for leaks?
Pump the pedal three times, then hold firm pressure five secondsPress the pedal once and release immediatelyHold the pedal down while revving the engineTap the pedal rapidly ten times
6.When should you cancel your turn signal if the vehicle lacks self-canceling signals?
After the turn is finishedThe moment you start the turnBefore you begin to turnOnly when a car is behind you
7.Roughly how long does a typical tractor-trailer take to clear a single railroad track?
About 3 secondsAt least 14 secondsAbout 7 secondsAbout 30 seconds
8.During a cargo fire in a box trailer, why should you keep the doors shut?
Opening them gives the fire more oxygenIt keeps the cargo dryIt prevents theftIt keeps the placards visible
9.What does the vehicle inspection report allow the next driver to learn?
The fuel prices along the routeThe scheduled delivery timesAny problems found on the previous tripThe driver's rest-break history
10.May a driver whose personal license is suspended get a hardship license to keep driving a CMV?
No, a hardship license is not allowedYes, for work trips onlyYes, for 30 daysYes, if the employer approves