2024 ILLINOIS CDL GENERAL
KNOWLEDGE EXAM WITH
CORRECT ANSWERS
When preparing to do a pre-trip inspection you must check to see that the
parking brakes are on and/or the wheels are chocked? - CORRECT-
ANSWERStrue
When getting in to start the engine and inspect inside the cab you must: -
CORRECT-ANSWERS-make sure parking brake is on
-put gearshift in neutral (or park if automatic)
-start engine and listen for unusual noises
what are two special conditions where you should downshift? - CORRECT-
ANSWERSbefore starting down a hill and before entering a curve.
when should you downshift automatic transmissions? - CORRECT-
ANSWERSwhen going down grades.
retarders keep you from skidding where the road is slipping: - CORRECT-
ANSWERSfalse
what are the two ways to know when to shift? - CORRECT-ANSWERSuse
engine speed (rpm) and use road speed (mph)
How far ahead should you look? - CORRECT-ANSWERSmost good drivers look
12 to 15 seconds ahead
what are two main things to look for ahead? - CORRECT-ANSWERStraffic and
road conditions
what's your most important way to see the sides and rear? - CORRECT-
ANSWERSchecking your mirrors regularly
what does "communicating" mean in safe driving? - CORRECT-
ANSWERSusing hand signs
where should your relectors be placed when stopped on a divided highway? -
CORRECT-ANSWERSwithin ten feet of the front or rear and 100 feet behind
and ahead of the vehicle
, what three things add up to total stopping distance? - CORRECT-
ANSWERSperception distance, reaction distance, and braking distance
if you go twice as fast, your stopping distance will increase by - CORRECT-
ANSWERSfour times
Empty trucks have the best breaking? - CORRECT-ANSWERSfalse
what is hydroplaning? - CORRECT-ANSWERSwhen the tires lose their contact
with the road.
what is black ice? - CORRECT-ANSWERSa thin layer of ice clear enough that
you can see the road underneath it
If the vehicle ahead of you is smaller than yours, it can probable - CORRECT-
ANSWERSstop faster than you can
if you are driving a 30 foot cehicle at 55 mph, how many seconds of following
distance should you allow? - CORRECT-ANSWERSfour seconds
you should decrease your following distance if somebody is following you too
closely: - CORRECT-ANSWERSfalse
if you swing wide to the left before turning right, another driver may try to
pass you on the right - CORRECT-ANSWERStrue
you should use low beams whenever you can - CORRECT-ANSWERStrue
what should you do before you drive if you are drowsy? - CORRECT-
ANSWERSget some sleep before you drive
what effects can wet brakes cause? - CORRECT-ANSWERSyour foot to get
tired
how can you avoid wet brake problems? - CORRECT-ANSWERSslown down,
shift to a low gear, gently put on the brakes
you should let air out of hot tires so the pressure goes back to bormas. -
CORRECT-ANSWERSfalse
you can safely remove the radiator cap as long as the engine isn't overrated
- CORRECT-ANSWERSfalse
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