Massachusetts CDL Class B (General
Knowledge) Exam Questions &
Answers (Grade A+)
When the roads are slippery, you should:
a. drive alongside other vehicles
b. make turns as gentle as possible
c. stop and test the traction while going up hills
d. decrease the distance that you look ahead of your vehicle -
correct answer ✅b. make turns as gentle as possible
Which of these statements about brakes is true?
A. The heavier a vehicle or the faster it is moving, the more heat
the brakes have to absorb to stop it
B. Brakes have more stopping power when they get very hot
C. Brake drums cool very quickly when the vehicle is moving very
fast
D. All of the above are true -
correct answer ✅A. The heavier a vehicle or the faster it is
moving, the more heat the brakes have to absorb to stop it
Truck escape ramps
A. Help avoid damage to vehicles
B. Should not be used if brakes fail on a downgrade
,Massachusetts CDL Class B (General
Knowledge) Exam Questions &
Answers (Grade A+)
C. Cannot be used by certain types of heavy vehicles
D. All of the above -
correct answer ✅A. Help avoid damage to vehicles
You are starting your vehicle in motion from a stop. As you apply
power to the drive wheels, they started to spin. You should:
A. take your foot off the accelerator
B. take your foot off the accelerator and apply the brakes
C. press harder on the accelerator
D. try a lower gear -
correct answer ✅A. take your foot off the accelerator
The distance that you should look ahead of your vehicle while
driving to about______ mile at highway speed
A. 1/10
B. 1/8
C. 1/4
D. 1/2 -
correct answer ✅C. 1/4
,Massachusetts CDL Class B (General
Knowledge) Exam Questions &
Answers (Grade A+)
The Driver's Manual suggests several things to do when you pass a
vehicle. Which of these is not one of them?
A. lightly tap your horn
B. At night, turn on your high beams before you start to pass and
leave them on until you have completely passed the vehicle
C. Drive carefully to avoid a crash
D. Assume the other driver does not see you -
correct answer ✅B. At night, turn on your high beams before you
start to pass and leave them on until you have completely passed
the vehicle
Which of these statements about downshifting is true?
A. When you downshift for a curve, you should do so before you
enter the curve
B. When you downshift for a hill, you should do so after you start
down the hill
C. When double- clutching, you should let the rpms decrease while
the clutch is released and the shift lever is in neutral
D. All of the above are true -
correct answer ✅A. When you downshift for a curve, you should
do so before you enter the curve
, Massachusetts CDL Class B (General
Knowledge) Exam Questions &
Answers (Grade A+)
Which of these can cause a vehicle to skid?
A. Turning too sharply
B. Not enough weight on the front axle
C. Over acceleration
D. All of the above are true -
correct answer ✅D. All of the above are true
Which of these pieces of emergency equipment should always be
carried in your vehicle?
A. Fire extinguishers(s)
B. Spare electrical fuse(if the vehicle uses them)
C. Warning devices for parked vehicles
D. All of the above -
correct answer ✅D. All of the above
Which of these statements about drugs is true?
A. A driver can user any prescription drug while driving
Knowledge) Exam Questions &
Answers (Grade A+)
When the roads are slippery, you should:
a. drive alongside other vehicles
b. make turns as gentle as possible
c. stop and test the traction while going up hills
d. decrease the distance that you look ahead of your vehicle -
correct answer ✅b. make turns as gentle as possible
Which of these statements about brakes is true?
A. The heavier a vehicle or the faster it is moving, the more heat
the brakes have to absorb to stop it
B. Brakes have more stopping power when they get very hot
C. Brake drums cool very quickly when the vehicle is moving very
fast
D. All of the above are true -
correct answer ✅A. The heavier a vehicle or the faster it is
moving, the more heat the brakes have to absorb to stop it
Truck escape ramps
A. Help avoid damage to vehicles
B. Should not be used if brakes fail on a downgrade
,Massachusetts CDL Class B (General
Knowledge) Exam Questions &
Answers (Grade A+)
C. Cannot be used by certain types of heavy vehicles
D. All of the above -
correct answer ✅A. Help avoid damage to vehicles
You are starting your vehicle in motion from a stop. As you apply
power to the drive wheels, they started to spin. You should:
A. take your foot off the accelerator
B. take your foot off the accelerator and apply the brakes
C. press harder on the accelerator
D. try a lower gear -
correct answer ✅A. take your foot off the accelerator
The distance that you should look ahead of your vehicle while
driving to about______ mile at highway speed
A. 1/10
B. 1/8
C. 1/4
D. 1/2 -
correct answer ✅C. 1/4
,Massachusetts CDL Class B (General
Knowledge) Exam Questions &
Answers (Grade A+)
The Driver's Manual suggests several things to do when you pass a
vehicle. Which of these is not one of them?
A. lightly tap your horn
B. At night, turn on your high beams before you start to pass and
leave them on until you have completely passed the vehicle
C. Drive carefully to avoid a crash
D. Assume the other driver does not see you -
correct answer ✅B. At night, turn on your high beams before you
start to pass and leave them on until you have completely passed
the vehicle
Which of these statements about downshifting is true?
A. When you downshift for a curve, you should do so before you
enter the curve
B. When you downshift for a hill, you should do so after you start
down the hill
C. When double- clutching, you should let the rpms decrease while
the clutch is released and the shift lever is in neutral
D. All of the above are true -
correct answer ✅A. When you downshift for a curve, you should
do so before you enter the curve
, Massachusetts CDL Class B (General
Knowledge) Exam Questions &
Answers (Grade A+)
Which of these can cause a vehicle to skid?
A. Turning too sharply
B. Not enough weight on the front axle
C. Over acceleration
D. All of the above are true -
correct answer ✅D. All of the above are true
Which of these pieces of emergency equipment should always be
carried in your vehicle?
A. Fire extinguishers(s)
B. Spare electrical fuse(if the vehicle uses them)
C. Warning devices for parked vehicles
D. All of the above -
correct answer ✅D. All of the above
Which of these statements about drugs is true?
A. A driver can user any prescription drug while driving
