Ohio CDL — General Knowledge Practice Test 9

1.What is the stab braking method?
Holding light, steady pressure the whole timeBraking only with the engineApplying fully, releasing when wheels lock, then reapplying when they roll againNever releasing the pedal once pressed
2.Using the proper braking technique on a downgrade, when do you release the brakes after slowing?
When you reach exactly your safe speedOnly at the very bottom of the gradeOnce your speed drops to about 5 mph below your safe speedAfter the brakes begin to smoke
3.Why should you avoid using the engine brake or retarder on a slippery winter road?
They waste fuel in cold weatherThey make the engine stallThey can cause the drive wheels to skid on a slick surfaceThey shorten the stopping distance too much
4.If you fail the vehicle inspection portion of the skills test, what happens next?
You cannot continue to the basic control or road testYou may skip ahead to the road testYou automatically pass the other segmentsYou receive a restricted license
5.According to the manual, what is the total stopping distance for a vehicle at 55 mph under ideal conditions?
About 419 feetAbout 142 feetAbout 216 feetAbout 60 feet
6.Why should you clean your windshield inside and out for night driving?
Dirt makes the wipers wear outIt keeps the defroster workingClean glass improves fuel economyAt night, dirt catches light and creates a view-blocking glare
7.Which warning devices for a parked vehicle satisfy the emergency equipment requirement?
A single road flareThree reflective triangles, or six fuses, or three liquid-burning flaresOne reflective triangle onlyTwo orange cones
8.What is a hazard, as the manual defines it?
Only a vehicle that has already crashedA posted speed limit signA stretch of clear, open highwayAny road condition or road user that could become a danger
9.Why are walkers, joggers, and bicyclists on the road with their backs to traffic a special concern?
They always have the right of wayThey move faster than trafficThey cannot see you and may not hear you eitherThey are required to wear reflective gear
10.The X-shaped cross-buck posted at a grade crossing is a sign that directs drivers to do what?
Stop only when a gate is loweredGive way to any approaching trainProceed across without slowingSound the horn and cross at once