CDL General Knowledge Questions with Verified Answers
When you are in a 60 foot vehicle, how much * Cargo improperly loaded
space should you maintain in front of you at
highway speeds? - ANSWERS - Seven
seconds Driving at night is more dangerous because of
the following (3): - ANSWERS - * Most
people are less alert at night due to fatigue
What is the first thing to do if your vehicle * Headlights often cause glare which can blind
catches fire while driving? - ANSWERS - drivers
Pull off the road and park in an open area * There are more drunk drivers at night
The best way to put out a fire is to: - How often should you check your cargo (3)? -
ANSWERS - Stand upwind and spray the ANSWERS - * Within 25 miles after
base of the fire beginning a trip
* After you have driven for three hours
* After you take a break
What are some causes of vehicle fires (3): -
ANSWERS - * Spilled fuel
* Short circuits An engine retarder is designed to: -
* Driver smoking ANSWERS - Slow the vehicle down without
using brakes
Safe drivers must maintain space around their
vehicles for the following reasons (3): - When should tires be replaced (3)? -
ANSWERS - * In case you must stop ANSWERS - * When the tread separates
suddenly * When there are broken valve stems
* In case there are cars following too closely * If the tread depth on your front tires is less than
* In case there is an obstacle in the road. 4/32 deep
Hydroplaning can occur when you drive through In the event of a tire failure, you should: -
water or slush. If you experience hydroplaning ANSWERS - Stay off the brake and hold
you should: - ANSWERS - Release the the steering wheel firmly
accelerator and push in the clutch
Your vehicle is going down a long hill and your
When making a right hand turn, you should brakes begin to fail. What should you do? -
always: - ANSWERS - Keep the rear of ANSWERS - Look for an escape ramp or
your vehicle close to the curb an escape route
A front wheel skid is usually caused by (3): - The definition of a commercial motor vehicle is
ANSWERS - * Driving too fast for (3): - ANSWERS - * A vehicle with a gross
conditions weight over 26,001 lbs
* Lack of tread on the front tires * A vehicle transporting hazardous materials
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When you are in a 60 foot vehicle, how much * Cargo improperly loaded
space should you maintain in front of you at
highway speeds? - ANSWERS - Seven
seconds Driving at night is more dangerous because of
the following (3): - ANSWERS - * Most
people are less alert at night due to fatigue
What is the first thing to do if your vehicle * Headlights often cause glare which can blind
catches fire while driving? - ANSWERS - drivers
Pull off the road and park in an open area * There are more drunk drivers at night
The best way to put out a fire is to: - How often should you check your cargo (3)? -
ANSWERS - Stand upwind and spray the ANSWERS - * Within 25 miles after
base of the fire beginning a trip
* After you have driven for three hours
* After you take a break
What are some causes of vehicle fires (3): -
ANSWERS - * Spilled fuel
* Short circuits An engine retarder is designed to: -
* Driver smoking ANSWERS - Slow the vehicle down without
using brakes
Safe drivers must maintain space around their
vehicles for the following reasons (3): - When should tires be replaced (3)? -
ANSWERS - * In case you must stop ANSWERS - * When the tread separates
suddenly * When there are broken valve stems
* In case there are cars following too closely * If the tread depth on your front tires is less than
* In case there is an obstacle in the road. 4/32 deep
Hydroplaning can occur when you drive through In the event of a tire failure, you should: -
water or slush. If you experience hydroplaning ANSWERS - Stay off the brake and hold
you should: - ANSWERS - Release the the steering wheel firmly
accelerator and push in the clutch
Your vehicle is going down a long hill and your
When making a right hand turn, you should brakes begin to fail. What should you do? -
always: - ANSWERS - Keep the rear of ANSWERS - Look for an escape ramp or
your vehicle close to the curb an escape route
A front wheel skid is usually caused by (3): - The definition of a commercial motor vehicle is
ANSWERS - * Driving too fast for (3): - ANSWERS - * A vehicle with a gross
conditions weight over 26,001 lbs
* Lack of tread on the front tires * A vehicle transporting hazardous materials
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