1˚ TEST

Question 1

What is the main function of the air compressor in a commercial vehicle?
* A) To inflate the tires
* B) To power the headlights
* C) To provide air for the brakes
* D) To cool the engine

Answer 1

CORRECT ANSWER: C)

Question 2

What is the purpose of the air lines between the tractor and the trailer?
* A) To provide fuel to the trailer
* B) To supply air for the trailer’s brakes
and suspension
* C) To transmit electrical signals to the
trailer lights
* D) To connect the steering mechanism

Answer 2

CORRECT ANSWER: B)

Question 3

What is the minimum age requirement to obtain a CDL in most states?
* A) 16 years old
* B) 18 years old
* C) 21 years old
* D) 25 years old

Answer 3

CORRECT ANSWER: C)

Question 4

What is the main purpose of the air compressor in a commercial vehicle?
* A) To provide air for the brakes
* B) To cool the engine
* C) To inflate the tires
* D) To power the headlights

Answer 4

CORRECT ANSWER: A)

Question 5

What is the main reason for needing a tanker endorsement?
* A) To transport livestock
* B) To transport bulk liquids
* C) To drive longer routes
* D) To operate vehicles with air brakes

Answer 5

CORRECT ANSWER: B)

Question 6

What is the primary purpose of baffles in a tanker?
* A) To divide the tank into
compartments
* B) To reduce the weight of the vehicle
* C) To control the movement of liquid
and prevent surge
* D) To increase the tank’s capacity

Answer 6

CORRECT ANSWER: C)

Question 7

What is the purpose of the Hazardous Materials Regulations (HMR)?
* A) To increase fuel efficiency
* B) To ensure the safe transport of hazardous materials
* C) To reduce vehicle emissions
* D) To provide guidelines for vehicle maintenance

Answer 7

CORRECT ANSWER: B)

Question 8

What is the primary purpose of the Hazardous Materials Regulations (HMR)?
* A) To improve fuel efficiency
* B) To ensure the safe and secure
transport of hazardous materials
* C) To reduce vehicle maintenance
costs
* D) To provide guidelines for vehicle
emissions

Answer 8

CORRECT ANSWER: B)

Question 9

What is the primary reason for conducting a pre-trip inspection on double and triple trailers?
* A) To check fuel levels
* B) To ensure the safety and
compliance of the vehicle
* C) To verify delivery schedules
* D) To test the radio

Answer 9

CORRECT ANSWER: B)

Question 10

What is the purpose of the converter dolly on a double or triple trailer?
* A) To provide additional cargo space
* B) To connect the second and third
trailers to the lead trailer
* C) To improve fuel efficiency
* D) To stabilize the trailers during turns

Answer 10

CORRECT ANSWER: B)

Question 11

What should you do if a student refuses to follow safety rules on the bus?
* A) Ignore the behavior
* B) Report the behavior to the school
administration
* C) Punish the student yourself
* D) Let the other students handle it

Answer 11

CORRECT ANSWER: B)

Question 12

What should a school bus driver do before crossing any railroad tracks?
* A) Speed up to cross quickly
* B) Stop, look, and listen for trains
* C) Proceed without stopping if no train
is visible
* D) Honk the horn and proceed

Answer 12

CORRECT ANSWER: B)

Question 13

When should you inspect your bus for damage or safety issues?
* A) Only at the beginning of the day
* B) Before and after each trip
* C) Only when you notice a problem
* D) Weekly

Answer 13

CORRECT ANSWER: B)

Question 14

What should you do if a passenger bus is involved in an accident?
* A) Continue to your destination
* B) Ensure the safety of passengers, call
for help, and remain at the scene
* C) Drive to the nearest police station
* D) Move the bus to a safe location and
leave the passengers unattended

Answer 14

CORRECT ANSWER: B)

Question 15

What is the primary purpose of a vehicle inspection?
* A) To improve fuel efficiency
* B) To ensure the vehicle is safe
operate
* C) To check the weather conditions
* D) To clean the vehicle

Answer 15

CORRECT ANSWER: B)

Question 16

What should you check for on the windshield during a pre-trip inspection?
* A) The color of the glass
* B) Cleanliness, cracks, chips, or any
damage
* C) The brand of the windshield
* D) The thickness of the glass

Answer 16

CORRECT ANSWER: B)

Question 17

Which CDL class is required to operate a combination vehicle with a GCWR of 26,001 pounds or more?
* A) Class A
* B) Class B
* C) Class C
* D) Class D

Answer 17

CORRECT ANSWER: A)

Question 18

What does CDL stand for?
* A) Commercial Driving License
* B) Commercial Driver’s License
* C) Commercial Delivery License
* D) Cargo Driver’s License

Answer 18

CORRECT ANSWER: B)

Question 19

What is the function of the air dryer in an air brake system?
* A) To remove moisture from the air
* B) To cool the compressed air
* C) To increase air pressure
* D) To reduce air pressure

Answer 19

CORRECT ANSWER: A)

Question 20

What is the purpose of the air dryer in an air brake system?
* A) To increase air pressure
* B) To cool the compressed air
* C) To remove moisture from the air
* D) To reduce air pressure

Answer 20

CORRECT ANSWER: C)

Question 21

What should you do if you notice air leaking from the trailer air lines during a pre-trip inspection?
* A) Ignore it and continue driving
* B) Report the issue and get it fixed
before driving
* C) Use tape to temporarily seal the
leak
* D) Disconnect the air lines and drive
without them

Answer 21

CORRECT ANSWER: B)

Question 22

What should you do before loading a tank?
* A) Check for proper ventilation
* B) Ensure the tank is clean and free of
leaks
* C) Inflate the tires to maximum
pressure
* D) Disconnect the brake lines

Answer 22

CORRECT ANSWER: B)

Question 23

What should you do if you experience a tire blowout while driving a tanker?
* A) Immediately brake hard
* B) Steer straight and gradually slow
down
* C) Accelerate to regain control
* D) Turn sharply to the side of the road

Answer 23

CORRECT ANSWER: B)

Question 24

When approaching a bus stop, what is the correct sequence of actions?
* A) Signal, slow down, activate warning
lights, stop, and open the door
* B) Speed up, activate warning lights,
stop, and open the door
* C) Signal, stop, activate warning lights,
and open the door
* D) Activate warning lights, slow down,
stop, and open the door

Answer 24

CORRECT ANSWER: A)

Question 25

When loading or unloading students, how far should they move away from the bus to ensure safety? * A) 2 feet * B) 5 feet * C) 10 feet * D) 20 feet

Answer 25

CORRECT ANSWER: C)

Question 26

How often should you check your mirrors while driving a passenger bus? * A) Every 5-8 seconds * B) Every 10-12 seconds * C) Every 20-30 seconds * D) Only when changing lanes

Answer 26

CORRECT ANSWER: A)

Question 27

When should the bus's emergency exits be used? * A) Only in the event of a fire * B) Only during emergency evacuation drills * C) In any emergency situation requiring evacuation * D) Only when the front door is blocked

Answer 27

CORRECT ANSWER: C)

Question 28

2. How often should a pre-trip inspection be conducted? * A) Once a week * B) Only when you suspect a problem * C) Before every trip * D) Once a month

Answer 28

CORRECT ANSWER: C)

Question 29

During a pre-trip inspection, what should you look for on the vehicle’s mirrors? * A) Cleanliness, proper adjustment, and any cracks or damage * B) The mirror’s color * C) The brand of the mirror * D) The size of the mirror

Answer 29

CORRECT ANSWER: A)

Question 30

What does the term "placard" refer to in hazardous materials transportation? * A) A type of cargo container * B) A sign indicating the presence of hazardous materials * C) A protective covering for the vehicle * D) A communication device

Answer 30

CORRECT ANSWER: B)

Question 31

Which of the following is required to operate a vehicle transporting hazardous materials? * A) Class A CDL * B) Class B CDL * C) Class C CDL * D) Hazardous Materials Endorsement (HME)

Answer 31

CORRECT ANSWER: D)

Question 32

What is the minimum air pressure required for the proper operation of air brakes? * A) 60 PSI * B) 80 PSI * C) 90 PSI * D) 100 PSI

Answer 32

CORRECT ANSWER: D)

Question 33

At what PSI does the low air pressure warning typically activate? * A) 100 PSI * B) 80 PSI * C) 60 PSI * D) 40 PSI

Answer 33

CORRECT ANSWER: C)

Question 34

3. How do you know if the trailer height is correct for coupling? * A) The trailer should be higher than the fifth wheel * B) The trailer should be lower than the fifth wheel * C) The trailer should be level with the fifth wheel * D) The trailer should be touching the ground

Answer 34

CORRECT ANSWER: B)

Question 35

What is "surge" in a tanker vehicle? * A) A sudden increase in engine power * B) The movement of liquid in the tank causing forward and backward motion * C) A quick stop of the vehicle * D) An increase in air pressure in the brakes

Answer 35

CORRECT ANSWER: B)

Question 36

Which of the following is required to transport hazardous materials? * A) A special driver's license * B) A vehicle inspection sticker * C) A Hazardous Materials Endorsement (HME) on your CDL * D) An environmental permit

Answer 36

CORRECT ANSWER: C)

Question 37

What is a "hazmat employee"? * A) Anyone who loads, unloads, or handles hazardous materials * B) Only the driver of the vehicle * C) Only the shipping clerk * D) Only the recipient of the hazardous materials

Answer 37

CORRECT ANSWER: A)

Question 38

What should you check after coupling a second trailer? * A) The cargo weight * B) The weather forecast * C) The coupling is secure and the brakes are connected * D) The route to the destination

Answer 38

CORRECT ANSWER: C)

Question 39

What must a driver have in order to transport hazardous materials? * A) A regular CDL * B) A Hazardous Materials Endorsement (HME) on their CDL * C) A special permit from the state * D) A vehicle with a reinforced chassis

Answer 39

CORRECT ANSWER: B)

Question 40

When coupling double trailers, what is the first step? * A) Connect the air lines * B) Secure the converter dolly * C) Inspect the rear trailer * D) Align the dolly with the rear trailer

Answer 40

CORRECT ANSWER: D)

Question 41

When approaching a railroad crossing, a school bus driver should: * A) Speed up to cross quickly * B) Stop, look, and listen before crossing * C) Proceed without stopping if no train is visible * D) Honk the horn and proceed

Answer 41

CORRECT ANSWER: B)

Question 42

How often should school bus drivers check the mirrors for students or traffic? * A) Every 5-8 seconds * B) Every 10-12 seconds * C) Every 20-30 seconds * D) Only when changing lanes

Answer 42

CORRECT ANSWER: A)

Question 43

When coupling a converter dolly to the rear trailer, what should you ensure? * A) The dolly is clean * B) The dolly is properly aligned with the rear trailer * C) The dolly has enough fuel * D) The dolly's tires are new

Answer 43

CORRECT ANSWER: B)

Question 44

What should you do if you smell fuel while driving a passenger bus? * A) Continue driving to your destination * B) Open the windows * C) Stop immediately and evacuate the passengers * D) Ignore it

Answer 44

CORRECT ANSWER: C)

Question 45

What is the main purpose of conducting a pre-trip inspection on a passenger bus? * A) To check for cleanliness * B) To ensure the bus is safe to operate * C) To check the fuel level * D) To ensure all passengers are present

Answer 45

CORRECT ANSWER: B)

Question 46

What should you check on the tires during a vehicle inspection? * A) Tread depth, tire pressure, and any damage * B) Color of the tire * C) Brand of the tire * D) The age of the tire

Answer 46

CORRECT ANSWER: A)

Question 47

What should you do if you find that your trailers are not tracking properly? * A) Speed up to correct the issue * B) Slow down and check your trailer alignment * C) Use the trailer hand valve * D) Continue driving until you can stop

Answer 47

CORRECT ANSWER: B)

Question 48

How can you reduce the effects of surge? * A) Accelerate quickly * B) Use controlled braking and smooth steering * C) Make sharp turns * D) Keep the tank half-full

Answer 48

CORRECT ANSWER: B)

Question 49

What is the correct way to check the vehicle's oil level? * A) By checking the color of the oil * B) By using the dipstick to ensure the oil is within the safe range * C) By smelling the oil * D) By checking the oil's brand

Answer 49

CORRECT ANSWER: B)

Question 50

What should you do if the trailer is too high when attempting to couple? * A) Lower the trailer by using the landing gear * B) Raise the trailer by using the landing gear * C) Drive the tractor under the trailer anyway * D) Adjust the height of the fifth wheel

Answer 50

CORRECT ANSWER: A)

Question 51

What endorsement is needed to transport passengers in a commercial vehicle? * A) N Endorsement * B) P Endorsement * C) H Endorsement * D) T Endorsement

Answer 51

CORRECT ANSWER: B)

Question 52

What is the "shipping paper" for hazardous materials? * A) A document that provides details about the cargo, including the type and quantity of hazardous materials * B) A certificate of vehicle inspection * C) A fuel consumption log * D) A maintenance record

Answer 52

CORRECT ANSWER: A)

Question 53

What is a "placard" used for? * A) To indicate the vehicle's speed * B) To identify the type of hazardous materials being transported * C) To show the vehicle's weight * D) To mark the vehicle's maintenance schedule

Answer 53

CORRECT ANSWER: B)

Question 54

How often should you inspect the connections and brakes on double or triple trailers? * A) Only at the beginning of the trip * B) Every time you stop * C) Once a week * D) Only during a pre-trip inspection

Answer 54

CORRECT ANSWER: B)

Question 55

How should you check for leaks in the air brake system of a double or triple trailer? * A) Listen for hissing sounds * B) Feel for air coming from the lines * C) Use a pressure gauge * D) Check for wet spots on the ground

Answer 55

CORRECT ANSWER: A)

Question 56

Why must you be especially careful when driving a tanker on a wet road? * A) To avoid splashing other vehicles * B) Because the liquid surge can increase the risk of skidding * C) Because the tank can overheat * D) To maintain fuel efficiency

Answer 56

CORRECT ANSWER: B)

Question 57

Why is it important to conduct a walk-around inspection of your double or triple trailers? * A) To check the cargo weight * B) To ensure the trailers are clean * C) To verify all connections are secure and there are no visible issues * D) To check the fuel levels

Answer 57

CORRECT ANSWER: C)

Question 58

How far from a railroad crossing should a school bus stop? * A) 10 to 20 feet * B) 15 to 50 feet * C) 5 to 10 feet * D) 50 to 100 feet

Answer 58

CORRECT ANSWER: B)

Question 59

How should you check the vehicle’s brake lights during an inspection? * A) By pressing the brake pedal and asking someone to check if the lights are working * B) By checking the color of the lights * C) By inspecting the light bulbs only * D) By turning on the hazard lights

Answer 59

CORRECT ANSWER: A)

Question 60

What must a driver do before starting a trip? * A) Fill out a pre-trip inspection report * B) Check their e-mail * C) Call the dispatcher * D) Wash the vehicle

Answer 60

CORRECT ANSWER: A)

Question 61

What is the minimum tire tread depth for front tires? * A) 2/32 of an inch * B) 4/32 of an inch * C) 6/32 of an inch * D) 8/32 of an inch

Answer 61

CORRECT ANSWER: B)

Question 62

What is the function of the coupling system? * A) To connect the tractor to the trailer * B) To provide electrical power to the trailer * C) To adjust the trailer's brakes * D) To balance the load

Answer 62

CORRECT ANSWER: A)

Question 63

Which component stores compressed air for the brake system? * A) Air compressor * B) Air tank * C) Air dryer * D) Brake chamber

Answer 63

CORRECT ANSWER: B)

Question 64

Which of the following endorsements is required to operate a school bus? * A) S Endorsement * B) P Endorsement * C) H Endorsement * D) N Endorsement

Answer 64

CORRECT ANSWER: A)

Question 65

How often should the air tanks be drained to remove accumulated moisture? * A) Daily * B) Weekly * C) Monthly * D) Yearly

Answer 65

CORRECT ANSWER: A)

Question 66

What is the maximum allowable blood alcohol concentration (BAC) for CDL drivers? * A) 0.08% * B) 0.04% * C) 0.06% * D) 0.02%

Answer 66

CORRECT ANSWER: B)

Question 67

Why are baffled tanks used? * A) To reduce the vehicle's weight * B) To separate different types of liquids * C) To reduce the movement of liquid and control surge * D) To increase the carrying capacity of the tank

Answer 67

CORRECT ANSWER: C)

Question 68

What should you check for during a pre-trip inspection of a tanker vehicle? * A) That the fuel level is full * B) That the tank is properly secured and free of leaks * C) That the windshield wipers are working * D) That the tires are clean

Answer 68

CORRECT ANSWER: B)

Question 69

What should a driver do if they discover a hazardous materials leak during transport? * A) Continue driving to the destination * B) Park the vehicle and seek assistance * C) Speed up to reduce the leak * D) Ignore the leak and continue driving

Answer 69

CORRECT ANSWER: B)

Question 70

Where should the shipping papers for hazardous materials be kept while driving? * A) Under the driver's seat * B) In the glove compartment * C) Within reach of the driver, typically in the driver's door or on the seat * D) In the trunk

Answer 70

CORRECT ANSWER: C)

Question 71

What is the main reason for avoiding sudden lane changes with doubles or triples? * A) To maintain fuel efficiency * B) To avoid disturbing the cargo * C) To prevent trailer rollovers and jackknifing * D) To reduce wear on tires

Answer 71

CORRECT ANSWER: C)

Question 72

What is the best way to handle a sudden stop when driving doubles or triples? * A) Use the trailer hand valve * B) Apply the brakes gradually and evenly * C) Pump the brakes rapidly * D) Use the engine brake only

Answer 72

CORRECT ANSWER: B)

Question 73

What should you do if the school bus stalls on a railroad track? * A) Stay on the bus and call for help * B) Evacuate the bus immediately * C) Try to restart the bus * D) Push the bus off the track

Answer 73

CORRECT ANSWER: B)

Question 74

When is it mandatory to use the stop arm and flashing red lights? * A) When picking up or dropping off students on a highway * B) Only when dropping off students * C) When the bus is parked * D) Only when picking up students

Answer 74

CORRECT ANSWER: A)

Question 75

What is the safest way to handle unruly behavior on the school bus? * A) Pull over to a safe location and address the behavior * B) Ignore the behavior * C) Yell at the students * D) Keep driving and report the behavior at the end of the route

Answer 75

CORRECT ANSWER: A)

Question 76

What is the recommended procedure for evacuating students in an emergency? * A) Evacuate through the rear emergency door only * B) Evacuate through the nearest exit, including windows if necessary * C) Evacuate only through the front door * D) Evacuate in the order of grade level

Answer 76

CORRECT ANSWER: B)

Question 77

What is the proper way to handle unruly passengers? * A) Yell at them * B) Ignore the behavior * C) Stop the bus in a safe location and address the behavior * D) Allow other passengers to handle it

Answer 77

CORRECT ANSWER: C)

Question 78

When should you use the bus's emergency exits? * A) Only in the event of a fire * B) Only during emergency evacuation drills * C) In any emergency situation requiring evacuation * D) Only when the front door is blocked

Answer 78

CORRECT ANSWER: C)

Question 79

How should you handle a situation where a passenger refuses to follow safety rules on the bus? * A) Ignore the behavior * B) Report the behavior to the school administration * C) Yell at the passenger * D) Address the behavior calmly and politely

Answer 79

CORRECT ANSWER: D)

Question 80

When inspecting the brakes, what should you look for? * A) Cleanliness of the brake pads * B) Proper brake adjustment, air leaks, and brake pad wear * C) Brake color * D) Type of brake fluid used

Answer 80

CORRECT ANSWER: B)

Question 81

When inspecting the tires, what is the proper tread depth for steer tires? * A) 1/32 inch * B) 2/32 inch * C) 4/32 inch * D) 6/32 inch

Answer 81

CORRECT ANSWER: C)

Question 82

What does the "air pressure gauge" indicate? * A) The fuel level * B) The temperature of the engine * C) The pressure in the air brake system * D) The weight of the cargo

Answer 82

CORRECT ANSWER: C)

Question 83

What is the purpose of a pre-trip inspection? * A) To clean the vehicle * B) To check the vehicle's condition and ensure it is safe to drive * C) To fuel the vehicle * D) To load cargo

Answer 83

CORRECT ANSWER: B)

Question 84

What is the purpose of the supply pressure gauge? * A) To measure the air pressure applied to the brakes * B) To indicate the amount of air pressure in the air tanks * C) To measure the temperature of the air * D) To indicate the amount of air pressure in the brake chambers

Answer 84

CORRECT ANSWER: B)

Question 85

Why is it important to check the vehicle's lights during an inspection? * A) To ensure they are the right color * B) To verify they are clean * C) To ensure they are working properly for visibility and safety * D) To see if they match the vehicle's color

Answer 85

CORRECT ANSWER: C)

Question 86

How should you handle a curve when driving a tanker vehicle? * A) Accelerate through the curve * B) Maintain a steady speed * C) Slow down before entering the curve * D) Brake hard before the curve

Answer 86

CORRECT ANSWER: C)

Question 87

What is the purpose of the standee line on a bus? * A) To provide extra seating * B) To mark the line where standing passengers should not cross * C) To indicate where to load cargo * D) To separate the driver from passengers

Answer 87

CORRECT ANSWER: B)

Question 88

What is the primary danger when transporting liquids in bulk? * A) Overheating of the engine * B) Excessive tire wear * C) The risk of rollover due to high center of gravity * D) Decreased fuel efficiency

Answer 88

CORRECT ANSWER: C)

Question 89

How often should you check the emergency equipment on your bus? * A) Only during the annual inspection * B) Daily, before starting your route * C) Once a month * D) Only when you have an emergency

Answer 89

CORRECT ANSWER: B)

Question 90

What does the supply pressure gauge indicate? * A) The air pressure applied to the brakes * B) The amount of air pressure in the air tanks * C) The temperature of the air * D) The amount of air pressure in the brake chambers

Answer 90

CORRECT ANSWER: B)

Question 91

What should you check during a pre-trip inspection of a tanker vehicle? * A) The fuel level * B) The cleanliness of the cab * C) The tank for leaks and damage * D) The radio functionality

Answer 91

CORRECT ANSWER: C)

Question 92

How often should the driver check the mirrors while driving the school bus? * A) Every 5-8 seconds * B) Every 10-12 seconds * C) Every 20-30 seconds * D) Only when changing lanes

Answer 92

CORRECT ANSWER: B)

Question 93

When should you activate your flashing amber warning lights? * A) 100-200 feet before the bus stop * B) 300 feet before the bus stop * C) When stopping for any reason * D) When driving in fog

Answer 93

CORRECT ANSWER: B)

Question 94

What does the low air pressure warning signal indicate? * A) The air pressure is too high * B) The air pressure is too low * C) The brakes are overheating * D) The air dryer needs servicing

Answer 94

CORRECT ANSWER: B)

Question 95

What should you check for after coupling the trailer to the tractor? * A) Ensure the fifth wheel is properly lubricated * B) Check that the kingpin is locked in place by the fifth wheel jaws * C) Verify the trailer lights are working * D) Inspect the trailer tires

Answer 95

CORRECT ANSWER: B)

Question 96

How should you handle a skid when pulling doubles or triples? * A) Apply the brakes firmly * B) Use the trailer hand valve * C) Release the brakes to regain traction * D) Turn the steering wheel sharply

Answer 96

CORRECT ANSWER: C)

Question 97

When backing double or triple trailers, what should you keep in mind? * A) Use quick, sharp movements * B) Make small steering adjustments to keep the trailers aligned * C) Rely solely on your mirrors * D) Back up quickly to reduce the risk of jackknifing

Answer 97

CORRECT ANSWER: B)

Question 98

What should you look for when inspecting the vehicle's battery? * A) The battery's color * B) The brand of the battery * C) The size of the battery * D) Secure mounting, no corrosion, and proper connections

Answer 98

CORRECT ANSWER: D)

Question 99

What is the purpose of the tandem release (slider) on a trailer? * A) To adjust the weight distribution between axles * B) To secure the cargo * C) To release the trailer from the truck * D) To inflate the tires

Answer 99

CORRECT ANSWER: A)

Question 100

What should you do if a parent or guardian is not present to receive a young child at the bus stop? * A) Leave the child at the stop * B) Take the child back to the school * C) Take the child to the next stop * D) Wait at the stop until the parent arrives

Answer 100

CORRECT ANSWER: B)