Tennessee CDL — General Knowledge Practice Test 7

1.Why should you not flash your brake lights or tap your taillights at a tailgater?
It is against federal weight rulesIt disables your turn signalsIt drains the trailer batteryIt confuses or provokes the tailgater instead of helping
2.What three distances add together to make up total stopping distance?
Idle distance, coast distance, and gear distanceFollowing distance, sight distance, and lane widthPerception distance, reaction distance, and braking distanceSignal distance, turn distance, and merge distance
3.After you stop on the shoulder of a road, within how many minutes must the emergency warning devices be placed?
Within 2 minutesOnly if you will be stopped over an hourWithin 30 minutesWithin 10 minutes
4.Why do empty trucks generally need a longer stopping distance than loaded ones?
An empty truck has less traction and needs more distance to stopEmpty trucks have stronger brakesEmpty trucks always travel fasterThere is no difference in stopping distance
5.If the ABS malfunction lamp stays on while you drive, what is still true of your brakes?
You still have your normal brakesYou have no brakes at allOnly the parking brake worksThe engine will shut off
6.Which of these servings contains about the same amount of alcohol?
A 12-ounce beer, a 5-ounce glass of wine, and a 1.5-ounce shot of liquor are about equalA 12-ounce beer holds far less than a shot of liquorOnly hard liquor contains real alcoholWine has no measurable alcohol
7.How does aggressive driving differ from road rage?
They are exactly the same thingAggressive driving is careless operation; road rage intends to harm othersRoad rage is legal but aggressive driving is notAggressive driving only happens at night
8.When a train has just cleared a crossing with more than one track, what must you check before proceeding?
Nothing, once the first train is gone it is clearWhether another train is coming on a different trackOnly that the gate has liftedThat your CB radio is on
9.Why should you not apply the brakes while making a quick emergency turn?
It uses too much air pressureIt is required by law to brake firstIt disables the steeringIt can lock the wheels and cause a skid
10.In the hazard-class table, corrosives like battery fluid and hydrochloric acid belong to which class?
Class 2Class 5Class 8Class 9