Massachusetts CDL — General Knowledge Practice Test 1

1.You may drive a vehicle carrying hazardous materials without a hazmat endorsement only when what is true?
The materials are in sealed drumsThe trip is under 50 milesYou are driving intrastate onlyThe load does not require placards
2.How many tie-downs are required, at minimum, for cargo based on its length?
One tie-down regardless of lengthOne tie-down for every 30 feet of cargoOne tie-down for every 50 feet of cargoOne tie-down for every 10 feet of cargo
3.The round, black-and-yellow advance warning sign posted ahead of a public railroad crossing tells a driver to do what?
Keep highway speed because gates always protect the crossingCome to a full stop every time, no matter whatSlow down, watch and listen for a train, and get ready to halt before the crossingYield only to vehicles that are already stopped at the tracks
4.When making a left turn at an intersection, where should the front of your vehicle be before you begin turning?
Just past the crosswalk lineHalfway into the far laneEven with the near curbAt the center of the intersection
5.What are the three good rules for using your turn signals when making a turn?
Use hand signals instead of lights in daylightSignal only at the moment you begin the turnTap the signal briefly, then steer with both handsSignal early, keep signaling continuously, and cancel it after the turn
6.After you pull onto the shoulder and come to a stop, what should you always switch on?
Only your parking lightsThe four-way emergency flashersYour high beamsThe interior dome light
7.How does an antilock braking system (ABS) help you during hard braking?
It guarantees a much shorter stopIt keeps the wheels from locking so you keep controlIt lets you follow more closelyIt replaces the need for normal brakes
8.Why is it important to keep both hands firmly on the steering wheel while driving?
It is required only in reverseIt keeps the horn from soundingIt reduces fuel consumptionA curb or pothole could pull the wheel from a weak grip
9.What is a "hazard" as the manual defines it?
Only a vehicle that has already crashedAny road condition or road user that is a possible dangerA police officer directing trafficAny vehicle larger than yours
10.What can happen if too little weight is placed on the steering (front) axle of a loaded truck?
The steering can become too light to control safelyThe brakes grip too hardThe engine overheatsThe tires wear more evenly