California CDL — General Knowledge Practice Test 8

1.Why is a high center of gravity (cargo loaded high or unevenly) dangerous?
It makes the vehicle more likely to roll overIt makes the engine overheatIt improves handling in curvesIt has no effect on the vehicle's stability
2.Another motorist is tailgating you, gesturing, and cutting in aggressively. What is the right way to handle it?
Hold your lane and your speed so they gain nothing from itLet them get past, keep your eyes off them, and report them to the authoritiesReturn the gesture so they understand you saw itBrake sharply so they are forced to back off
3.For a first conviction of driving a commercial vehicle with a blood alcohol concentration of 0.04 or higher, how long is your CDL disqualified?
30 days6 months90 daysAt least 1 year
4.How far ahead of a school bus stop should the driver switch on the alternating amber warning lamps?
About 50 feet, roughly one second outAbout 200 feet, roughly five to ten seconds outAbout 500 feet, roughly twenty seconds outOnly once the bus has come to a complete halt
5.When you have a choice about how to leave a large vehicle in a lot, which position is best?
One that puts the driver's door against a wall for securityOne you can drive straight out of, with no reversing needed on the way outOne that lets you reverse out toward the right sideOne at the far end of the lot, whichever way the exit lies
6.When you must stop along the road, how soon should you put out your emergency warning devices?
Turn on flashers at once and set out triangles within 10 minutesOnly if a police officer tells you toWithin the first hour is soon enoughWarning devices are not needed if you use flashers
7.If your wheels drift off the pavement onto the shoulder, what should you do?
Brake hard right away to stop on the shoulderJerk the steering wheel sharply back onto the roadSpeed up to climb back over the edgeEase off the gas, keep straight, then steer back gently when slowed
8.What must a driver know about the weight of the vehicle and its load?
Weight limits only apply to hazardous loadsYou may exceed axle limits if the total weight is legalYou must stay within the legal gross and axle weight limitsWeight does not affect stopping distance
9.How can you warn a driver behind you that you are about to slow down where they may not expect it?
Tap the brake pedal to flash your brake lightsTurn your headlights off and onSpeed up brieflyWave your arm out the window
10.What is the purpose of blocking and bracing cargo?
To make the truck look fully loadedTo keep cargo from shifting or sliding during transportTo add extra weight over the drive axleTo raise the load's center of gravity