Illinois CDL — General Knowledge Practice Test 3

1.Where must a driver keep the shipping papers for a hazardous-materials load?
Locked in the trailer with the cargoIn the glove box onlyMailed to the receiver in advanceIn a door pouch within reach, on the seat when out of the vehicle
2.A B:C-rated fire extinguisher is designed to handle which kinds of fires?
Electrical fires and burning liquidsBurning wood and paper onlyAny fire including cloth and woodOnly tire fires
3.At what speed can hydroplaning begin if there is a lot of water on the road?
As low as about 30 mphOnly above 55 mphOnly above 45 mphOnly above 65 mph
4.At a passive railroad crossing with no lights or gates, what is your responsibility?
Assume no train is coming and proceedLook for a train and judge whether it is safe to crossWait for a signal that will never comeFollow the vehicle ahead without checking
5.Why are railroad crossings with steep approaches a special concern for long, low vehicles?
The brakes always fail on inclinesThe vehicle could hang up on the tracksSteep crossings have no warning signsLow vehicles cannot cross any tracks
6.How does the following-distance rule change once you are traveling above 40 mph?
You add one second for safetyYou subtract one secondThe rule no longer appliesYou double the number of seconds
7.According to the rule to signal continuously, when should you cancel a turn signal?
Not until you have finished the turnAs soon as you begin the turnHalfway through the turnBefore you start braking
8.Why must you be especially aware of your vehicle's size when crossing or entering traffic?
It can stop instantly if neededIt accelerates slowly and needs a larger gapIt is exempt from yielding rulesIt needs less room than a car
9.Regardless of its size, any vehicle built to carry how many people requires a commercial driver's license?
10 or more, including the driver12 or more, including the driver24 or more, including the driver16 or more, including the driver
10.Which offense committed while operating a commercial vehicle leads to at least a 12-month disqualification?
A minor parking violationDriving one mph over the limitA single expired-registration ticketCommitting a felony while operating the vehicle