CT CDL GENERAL KNOWLEDGE TEST - CDL PRACTICE TEST

21. Texting while operating a commercial motor vehicle is:
acceptable if you are contacting your supervisor.
acceptable if you are contacting your dispacther.
illegal.
only allowed at night.
22. To know when to shift, you can use each of the following except:
perception distance.
road speed.
engine sounds.
engine speed.
23. During the pre-trip vehicle inspection test, when examining hoses with the examiner, look for:
the temperature gauge.
spare electrical fuses.
frays in the water pump belt.
puddles on the ground.
24. Which of the following statements about slippery roads is true?
The road will freeze before bridges will.
Shady parts of the road provide better traction than open areas.
On a wet road you should reduce speed by a half or more.
None of the above.
25. In an emergency, if you have to drive off the road you should:
stay on the shoulder (if possible) until your vehicle has come to a stop.
avoid using the brakes until your speed has dropped.
keep one set of wheels on the pavement, if possible.
All of the above.
26. Enough tread is especially important in winter conditions. You need at least ________ tread depth on steering axle tires.
4/32 inch
6/24 inch
8/32 inch
2/8 inch
27. When you park your vehicle and turn off the engine:
apply the parking brake.
keep the vehicle in the lane.
move the gear shift to first gear, if possible.
activate your right turn signal.
28. What plays a major role in mountain driving?
Speed
Weather
Rain
Gravity
29. Interstate commerce means trade, traffic, or transportation in the U.S. that is between:
A place in a state and a place outside such state or outside the U.S.
Two places in the state as part of trade, traffic, or transportation originating or terminating outside the state or U.S.
Two places in the state through another state or a place outside of the U.S.
All of the above.
30. To calculate how much space you should keep in front of you:
count off the seconds until you pass a pavement marking, or some other clear landmark.
count off the seconds until you reach the vehicle ahead.
add 4 seconds for each 10 feet of vehicle length at speeds below 40 mph.
count off the seconds from when the vehicle ahead of you passes some clear landmark to when you reach that same landmark.
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