Missouri CDL — General Knowledge Practice Test 2

1.By about how much should you reduce your speed on a wet road?
Not at allBy about one-thirdBy about one-tenthWet roads let you drive faster
2.If you have working ABS on all axles of a straight truck or combination, what can you do in an emergency stop?
You must still pump the brakes gentlyYou should avoid braking altogetherYou can fully apply the brakesYou must shift to neutral first
3.In an emergency where you lack room to stop, what is often true about steering versus stopping?
Stopping is always faster than steeringYou can usually turn to miss an obstacle faster than you can stopNeither steering nor braking helpsYou should always close your eyes and brake
4.When you must back a large vehicle, which direction should you turn toward whenever possible?
Toward the passenger sideToward the driver's sideStraight back only, never turningWhichever side has more room
5.In very hot weather, how often should you inspect the tires?
Every two hours or 100 milesOnce at the start of the trip onlyEvery 500 milesOnly when a warning light comes on
6.What is the only thing that will actually reduce your blood alcohol level?
Drinking black coffeeTaking a cold showerEating a large mealLetting time pass
7.Three or more serious traffic violations within three years result in losing your CDL for how long?
At least 120 daysAt least 30 daysAt least five yearsOnly 24 hours
8.Which of these is a major sign that a tire has failed?
A smoother, quieter rideA loud bang, vibration, or heavy steering feelThe engine speeding up on its ownBrighter dashboard lights
9.At night, how might you signal your presence to a vehicle you are about to pass?
Turn off your lights entirelyHold your high beams on the whole timeRepeatedly switch between low and high beamsFlash your hazard lights repeatedly
10.In a curved mirror (convex or “fisheye”) on a large truck, how do objects appear?
Smaller and farther away than they really areLarger and closer than realityExactly true to sizeUpside down