North Dakota CDL — General Knowledge Practice Test 3

1.You pull off the road and stop at night. Why does the manual say not to rely on your taillights to warn other drivers?
Taillights go out automatically when the engine is shut offDrivers have run into parked vehicles from behind, thinking they were moving normallyTaillights cannot be seen from more than 50 feetTaillights are illegal to use on a parked vehicle
2.What does the manual say about gestures such as shaking your head at another driver?
They are a safe way to let off stressThey should be avoided, because even a seemingly harmless show of irritation might anger the other driverThey are acceptable as long as both hands return to the wheelThey help other drivers learn from their mistakes
3.What is the heaviest load a single axle may carry under North Dakota's weight rules?
12,000 pounds19,000 pounds34,000 pounds20,000 pounds
4.What does the manual say about warning postings at low bridges and underpasses?
Every low bridge is required to show its exact clearanceWarnings appear only on interstate highwaysWarnings are often posted, but sometimes they are notPosted heights always include a safety margin
5.Why are freeway exits that go downhill and curve at the same time especially dangerous for commercial vehicles?
Exit ramps are never signed for speedThe downgrade makes slowing difficult, and braking while turning is riskyCars are not allowed on such exitsThe pavement on exits is always wet
6.Which kind of skid will ABS not prevent?
One caused by braking too hard on a slick roadOne caused by wheel lockup in an emergency stopOne caused by spinning the drive wheels or taking a turn too fastAny brake-induced jackknife
7.A North Dakota school bus is equipped with amber caution lights. How far ahead of a stop to pick up or drop off school children may the operator turn them on?
At least 100 feet but no more than 300 feet before stoppingExactly 200 feet before stoppingAt least 500 feet but no more than 1,000 feet before stoppingAt least 300 feet but no more than 500 feet before stopping
8.A passive railroad crossing has no traffic control device. What does the manual say is there to help you recognize it?
Flashing red lights and bellsGates with a flagman on dutyA stop sign and an overhead beaconRound yellow advance warning signs, markings on the pavement, and crossbucks
9.If an emergency forces you to drive off the road, what does the manual say helps you keep control?
Leaving the wheels on one side on the paved surface when you canBraking hard as soon as you reach the shoulderSteering sharply back onto the road at onceShifting into neutral and coasting
10.Federal and state inspectors may inspect your vehicle on the road. What happens if they find it unsafe?
You are given 30 days to make repairs while drivingA warning sticker is placed on the windshieldIt is put out of service until it is fixedThe carrier is fined but the trip may continue