Maryland CDL — General Knowledge Practice Test 3

1.Going from 20 mph up to 40 mph, by what factor does your braking distance grow?
About four timesAbout two timesAbout three timesIt stays the same
2.Because of a large vehicle's slow acceleration, what should you do before crossing or entering traffic?
Enter on the smallest gap to keep traffic movingWait for a larger gap than a car would need before pulling outRely on other drivers to slow for youCross first and accelerate once in the lane
3.A single vehicle with a gross vehicle weight rating of what value or more is a commercial motor vehicle?
16,000 pounds or more10,001 pounds or more8,000 pounds or more26,001 pounds or more
4.If you certify as intrastate or are under 21, which restriction is placed on your CDL?
The L restriction — no air brakesThe V restriction — medical varianceThe K restriction — intrastate onlyThe Z restriction — no full air brakes
5.How long is the disqualification for a first railroad-grade-crossing violation in a CMV?
At least 60 daysAt least 90 daysAt least 30 daysAt least one year
6.What is the safest action if you become drowsy while driving at night?
Turn up the radio and open a windowDrink coffee and keep goingPull over at the closest safe spot and get some sleepSpeed up to reach your destination sooner
7.What should you do if your vehicle begins to hydroplane?
Brake hard to regain tractionRelease the accelerator and push in the clutch to let the wheels slow and turn freelyAccelerate to push through the waterTurn the wheel sharply toward the shoulder
8.Which emblem warns you that the vehicle ahead is a slow-moving one such as farm machinery?
A solid orange rectangleA white diamond with black letteringA red triangle with an orange centerA round green disc
9.When your view is blocked by a hill or curve, where should the rear-most warning triangle go?
Directly beside the vehicleNo more than 20 feet behindFarther back so drivers get warning within 500 feet of the vehicleOn the opposite shoulder
10.When a traffic signal has been green for a long time as you approach, what should you expect?
It will stay green until you passIt has malfunctioned and can be ignoredYou should speed up to make itIt will probably change soon, so be ready to slow and stop