1|Page
Guam Chauffeur’s License Exam Test Bank
2025: Comprehensive 131-Question Study
Guide with Verified Answers for
Commercial Driving Certification, Covering
Safe Driving Practices, Vehicle Operation,
and Guam Traffic Regulations.
How can the driver anticipate a change in traffic signals as he approaches an
intersection?
Answer: Look well ahead for stale green lights, to avoid running through late.
If your vehicle is 38 feet in length, what "timed-interval" count would you use
under ideal road and traffic conditions?
Answer: 4 seconds. Round to nearest 10 feet and divide by 10.
What conditions should the driver consider when deciding upon a safe driving
speed?
Answer: 1. Road condition (rain)
2. Tire condition (tread, inflation)
3. Brake condition (adjustment)
4. Light condition (glare, shadows)
5. Visibility condition (dusk, rain, smoke, dust)
6. Traffic density (vehicles, pedestrians, cyclists)
7. Load condition (weight, length, width, type)
,2|Page
8. Driver condition (fatigue, tension)
In what way does the slow driver create a traffic hazard?
Answer: Slow drivers create hazards from vehicles following too close or trying to
pass them, which increases their risk of an accident from the rear and the side.
In what way does the fast driver create a traffic hazard?
Answer: Fast drivers increase their chance for collision by reducing stopping
distance and increasing driving fatigue
What is the minimum following distance the driver of a commercial vehicle
maintains when following another commercial vehicle outside of a business or
residential district?
Answer: 200 feet, 2 second rule, take car length to the nearest ten feet and divide
by 10, 1 car length per 10 mph
What is the most effective way to deal with a "tail-gater"?
Answer: Make sure to observe them carefully and help them to safely pass you.
What is the surest method of reducing stopping distance?
Answer: Drive slower.
What is meant by "The Danger Zone" of a vehicle?
, 3|Page
Answer: The area in front of the vehicle in which it cannot stop
What defensive measures can the driver take as he approaches any intersection?
Answer: 1. Never enter an intersection at a speed at which you cannot stop safely.
2. Do not assume you have the right of way.
3. Look well ahead for stale green lights.
4. Position your vehicle into the proper lane well before the turn at the intersection.
5. Do not depend on other drivers.
6. Never pass at the approach to or in an intersection.
If the weight of the vehicle is doubled, how many times must the stopping power
be increased?
Answer: 2x
If the speed of the vehicle is doubled, by how many times must the braking force
be increased to stop the vehicle?
Answer: 4x
If the weight and the speed of the vehicle is doubled, by how many times must the
braking force be increased to stop the vehicle?
Answer: 8x
How many braking systems are required on every truck, truck-tractor or bus?
Answer: Two: the service brake and the parking brake.
Guam Chauffeur’s License Exam Test Bank
2025: Comprehensive 131-Question Study
Guide with Verified Answers for
Commercial Driving Certification, Covering
Safe Driving Practices, Vehicle Operation,
and Guam Traffic Regulations.
How can the driver anticipate a change in traffic signals as he approaches an
intersection?
Answer: Look well ahead for stale green lights, to avoid running through late.
If your vehicle is 38 feet in length, what "timed-interval" count would you use
under ideal road and traffic conditions?
Answer: 4 seconds. Round to nearest 10 feet and divide by 10.
What conditions should the driver consider when deciding upon a safe driving
speed?
Answer: 1. Road condition (rain)
2. Tire condition (tread, inflation)
3. Brake condition (adjustment)
4. Light condition (glare, shadows)
5. Visibility condition (dusk, rain, smoke, dust)
6. Traffic density (vehicles, pedestrians, cyclists)
7. Load condition (weight, length, width, type)
,2|Page
8. Driver condition (fatigue, tension)
In what way does the slow driver create a traffic hazard?
Answer: Slow drivers create hazards from vehicles following too close or trying to
pass them, which increases their risk of an accident from the rear and the side.
In what way does the fast driver create a traffic hazard?
Answer: Fast drivers increase their chance for collision by reducing stopping
distance and increasing driving fatigue
What is the minimum following distance the driver of a commercial vehicle
maintains when following another commercial vehicle outside of a business or
residential district?
Answer: 200 feet, 2 second rule, take car length to the nearest ten feet and divide
by 10, 1 car length per 10 mph
What is the most effective way to deal with a "tail-gater"?
Answer: Make sure to observe them carefully and help them to safely pass you.
What is the surest method of reducing stopping distance?
Answer: Drive slower.
What is meant by "The Danger Zone" of a vehicle?
, 3|Page
Answer: The area in front of the vehicle in which it cannot stop
What defensive measures can the driver take as he approaches any intersection?
Answer: 1. Never enter an intersection at a speed at which you cannot stop safely.
2. Do not assume you have the right of way.
3. Look well ahead for stale green lights.
4. Position your vehicle into the proper lane well before the turn at the intersection.
5. Do not depend on other drivers.
6. Never pass at the approach to or in an intersection.
If the weight of the vehicle is doubled, how many times must the stopping power
be increased?
Answer: 2x
If the speed of the vehicle is doubled, by how many times must the braking force
be increased to stop the vehicle?
Answer: 4x
If the weight and the speed of the vehicle is doubled, by how many times must the
braking force be increased to stop the vehicle?
Answer: 8x
How many braking systems are required on every truck, truck-tractor or bus?
Answer: Two: the service brake and the parking brake.
