4˚ TEST

Question 1

What is a “retarder” and how does it help in driving?
* A) A device that helps slow down the vehicle without using brakes
* B) A type of speed limit sign
* C) A component of the engine cooling system
* D) A fuel-saving device

Answer 1

CORRECT ANSWER: A

Question 2

When should the parking brakes be used?
* A) Only when parked on an incline
* B) Anytime the vehicle is parked
* C) Only during vehicle inspections
* D) Only when the vehicle is loaded

Answer 2

CORRECT ANSWER: B

Question 3

What is the function of the emergency air line (red) in a combination vehicle?
* A) To supply air to the trailer’s service brakes
* B) To control the trailer’s emergency brakes
* C) To provide air for the trailer’s suspension system
* D) To supply air to the trailer’s air tanks

Answer 3

CORRECT ANSWER: D

Question 4

Why should you avoid filling a tanker completely full?
* A) To allow for expansion of the liquid
* B) To reduce the weight of the vehicle
* C) To improve fuel efficiency
* D) To prevent the tank from leaking

Answer 4

CORRECT ANSWER: A

Question 5

Why is it important to use the right type of tanker for the liquid being transported?
* A) To ensure the liquid does not freeze
* B) To maximize fuel efficiency
* C) To prevent chemical reactions and ensure safety
* D) To improve speed and handling

Answer 5

CORRECT ANSWER: C

Question 6

What is required when transporting hazardous materials through a tunnel?
* A) Turn off the vehicle’s lights
* B) Follow the specific rules and restrictions for hazardous materials in that tunnel
* C) Drive as quickly as possible
* D) Avoid using the tunnel altogether

Answer 6

CORRECT ANSWER: B

Question 7

How should you handle a steep downhill grade when driving doubles or triples?
* A) Use the trailer hand valve
* B) Apply the brakes continuously
* C) Use a lower gear and engine braking
* D) Speed up to maintain control

Answer 7

CORRECT ANSWER: C

Question 8

What is the main reason to perform a tug test when coupling trailers?
* A) To check the weight of the trailer
* B) To ensure the trailer is securely attached
* C) To test the trailer lights
* D) To verify the cargo is secure

Answer 8

CORRECT ANSWER: B

Question 9

How often should you inspect the coupling devices on double or triple trailers?
* A) Only during pre-trip inspections
* B) Before and after each trip
* C) Weekly
* D) Monthly

Answer 9

CORRECT ANSWER: B

Question 10

What should you do if you smell fuel while driving the school bus?
* A) Continue driving and report it later
* B) Stop the bus immediately and evacuate the students
* C) Open the windows
* D) Speed up to the destination

Answer 10

CORRECT ANSWER: B

Question 11

What is the primary purpose of the pre-trip inspection?
* A) To ensure the bus is clean
* B) To ensure the bus is safe to operate
* C) To load cargo
* D) To check the weather

Answer 11

CORRECT ANSWER: B

Question 12

How should you respond if a passenger needs assistance while boarding or exiting the bus?
* A) Ignore them
* B) Assist them as needed, ensuring their safety
* C) Tell them to hurry up
* D) Ask another passenger to help

Answer 12

CORRECT ANSWER: B

Question 13

How should you handle a situation where a passenger refuses to pay the fare?
* A) Ignore the passenger
* B) Yell at the passenger
* C) Stop the bus and refuse to continue until the fare is paid
* D) Follow company policy, which may include reporting to dispatch

Answer 13

CORRECT ANSWER: D

Question 14

How do you check the vehicle’s turn signals and hazard lights?
* A) By ensuring they are the right color
* B) By turning them on to see if they work properly
* C) By inspecting the light bulbs
* D) By checking the light covers

Answer 14

CORRECT ANSWER: B

Question 15

During an inspection, what should you check on the vehicle’s doors?
* A) The color of the doors
* B) Proper operation, secure hinges, and any damage
* C) The size of the doors
* D) The brand of the doors

Answer 15

CORRECT ANSWER: B

Question 16

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

Answer 16

CORRECT ANSWER: C

Question 17

How should a driver handle a curve in the road when driving a heavy vehicle?
* A) Accelerate through the curve
* B) Brake hard in the middle of the curve
* C) Slow down before entering the curve
* D) Drive through the curve at the posted speed limit

Answer 17

CORRECT ANSWER: C

Question 18

How can you test the low-pressure warning signal?
* A) Step on and off the brake pedal to reduce air pressure
* B) Increase engine speed to build air pressure
* C) Drain the air tanks
* D) Apply the parking brakes

Answer 18

CORRECT ANSWER: A

Question 19

What should you check for in the fifth wheel during a pre-trip inspection?
* A) That it is clean
* B) That it is properly lubricated
* C) That it is locked around the kingpin
* D) All of the above

Answer 19

CORRECT ANSWER: D

Question 20

How should you drive a tanker on a downgrade?
* A) Use a lower gear and controlled braking
* B) Speed up to maintain control
* C) Use the parking brake intermittently
* D) Shift to a higher gear

Answer 20

CORRECT ANSWER: A

Question 21

How should you handle a situation where the liquid in your tank starts to surge while turning?
* A) Steer sharply to counter the surge
* B) Slow down gradually and steer smoothly
* C) Speed up to stabilize the liquid
* D) Use the trailer hand valve

Answer 21

CORRECT ANSWER: B

Question 22

What should you do if you find that your vehicle is leaking hazardous materials during transport?
* A) Speed up to reduce the leak
* B) Stop in a safe location and secure the area
* C) Continue driving to minimize downtime
* D) Park near a water source to wash away the leak

Answer 22

CORRECT ANSWER: B

Question 23

How often must a driver transporting hazardous materials receive training?
* A) Once a month
* B) Every two years
* C) Every three years
* D) Every five years

Answer 23

CORRECT ANSWER: C

Question 24

How should you handle turns when driving double or triple trailers?
* A) Make wide, slow turns
* B) Turn as you would with a single trailer
* C) Make sharp, quick turns
* D) Avoid using your mirrors

Answer 24

CORRECT ANSWER: A

Question 25

What is the best way to ensure that the converter dolly is properly secured? * A) Visual inspection * B) Listening for a click sound * C) Checking the air pressure gauge * D) Pulling against the pin with the tractor

Answer 25

CORRECT ANSWER: D

Question 26

When is it permissible to back up a school bus? * A) When there is no other option * B) When you are in a hurry * C) Anytime, as long as it is done slowly * D) Only when directed by a spotter or another responsible person

Answer 26

CORRECT ANSWER: D

Question 27

How can you ensure the safety of students crossing the road after unloading? * A) By telling them to run quickly * B) By using the stop arm and ensuring all traffic has stopped * C) By using a whistle * D) By having them exit through the rear door

Answer 27

CORRECT ANSWER: B

Question 28

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

Answer 28

CORRECT ANSWER: C

Question 29

How often should you check for sleeping passengers at the end of your route? * A) Daily * B) Only when you suspect someone is sleeping * C) After each trip or route * D) Once a week

Answer 29

CORRECT ANSWER: C

Question 30

What should you look for when inspecting the vehicle's frame? * A) The color of the frame * B) Any cracks, bends, or damage * C) The length of the frame * D) The frame's brand

Answer 30

CORRECT ANSWER: B

Question 31

What should you do if the vehicle's wipers are not working properly? * A) Ignore the problem * B) Report the issue and replace the wipers before driving * C) Use the wipers less frequently * D) Drive slowly in case of rain

Answer 31

CORRECT ANSWER: B

Question 32

What should you do if your vehicle hydroplanes? * A) Brake hard immediately * B) Turn sharply to regain traction * C) Ease off the accelerator and steer straight * D) Accelerate to break the water surface

Answer 32

CORRECT ANSWER: C

Question 33

What is the purpose of a "cargo securement" inspection? * A) To check for engine leaks * B) To ensure that all cargo is properly loaded and secured * C) To verify tire pressure * D) To clean the cargo area

Answer 33

CORRECT ANSWER: B

Question 34

What is the maximum allowable leakage rate for a combination vehicle with the engine off and brakes released? * A) 1 PSI per minute * B) 2 PSI per minute * C) 3 PSI per minute * D) 4 PSI per minute

Answer 34

CORRECT ANSWER: C

Question 35

How should you position the tractor when uncoupling the trailer? * A) Position the tractor straight in line with the trailer * B) Position the tractor at a slight angle to the trailer * C) Position the tractor perpendicular to the trailer * D) Position the tractor with the rear wheels under the trailer

Answer 35

CORRECT ANSWER: A

Question 36

How should you handle turns when driving double or triple trailers? * A) Make wide, slow turns * B) Turn as you would with a single trailer * C) Make sharp, quick turns * D) Avoid using your mirrors

Answer 36

CORRECT ANSWER: A

Question 37

What is the correct action if a student drops an item while boarding or exiting the bus? * A) Let the student retrieve it * B) Retrieve the item for the student * C) Tell the student to leave it and inform the driver * D) Ignore it

Answer 37

CORRECT ANSWER: C

Question 38

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 38

CORRECT ANSWER: B

Question 39

What should you do if you encounter road construction while driving a passenger bus? * A) Speed up to get through quickly * B) Follow the directions of the construction workers or signs * C) Honk your horn to clear the way * D) Take an alternate route immediately

Answer 39

CORRECT ANSWER: B

Question 40

What should you do if you see a vehicle attempting to merge into your lane? * A) Speed up to block the vehicle * B) Move over if it is safe to do so * C) Slow down and allow the vehicle to merge * D) Honk your horn

Answer 40

CORRECT ANSWER: C

Question 41

Why is it important to check the vehicle's fuel system during an inspection? * A) To see if the fuel is the right color * B) To check for leaks or damage that could cause a fire hazard * C) To ensure the fuel tank is full * D) To check the fuel brand

Answer 41

CORRECT ANSWER: B

Question 42

How do you check the vehicle’s heater and defroster? * A) By inspecting their color * B) By turning them on to ensure they work properly * C) By checking their brand * D) By measuring their size

Answer 42

CORRECT ANSWER: B

Question 43

What is a "retarder"? * A) A device that helps slow down the vehicle without using brakes * B) A type of speed limit sign * C) A component of the engine cooling system * D) A fuel-saving device

Answer 43

CORRECT ANSWER: A

Question 44

What does "GVWR" stand for? * A) General Vehicle Weight Regulations * B) Gross Vehicle Weight Rating * C) General Vehicle Width Requirements * D) Gross Vehicle Width Rating

Answer 44

CORRECT ANSWER: B

Question 45

How often should automatic slack adjusters be checked? * A) Daily * B) Weekly * C) Monthly * D) Every six months

Answer 45

CORRECT ANSWER: A

Question 46

What is the purpose of the trailer emergency brakes? * A) To assist in normal stopping * B) To activate in case of a trailer breakaway * C) To provide parking braking * D) To control the trailer's speed downhill

Answer 46

CORRECT ANSWER: B

Question 47

What is the main purpose of the emergency shut-off valve on a tanker? * A) To release excess pressure * B) To stop the flow of liquid in an emergency * C) To vent air from the tank * D) To clean the tank

Answer 47

CORRECT ANSWER: B

Question 48

What should you do if your tanker starts to skid? * A) Accelerate to gain control * B) Apply the brakes hard * C) Steer in the direction of the skid * D) Turn sharply

Answer 48

CORRECT ANSWER: C

Question 49

What is the main purpose of placarding a vehicle transporting hazardous materials? * A) To improve fuel efficiency * B) To provide identification and warning information about the hazardous materials being transported * C) To comply with maintenance regulations * D) To advertise the trucking company

Answer 49

CORRECT ANSWER: B

Question 50

What does the term "segregation" mean in hazardous materials transportation? * A) Separating hazardous materials from non-hazardous materials * B) Separating hazardous materials from the driver * C) Separating incompatible hazardous materials to prevent reactions * D) Separating hazardous materials by weight

Answer 50

CORRECT ANSWER: C

Question 51

What is the function of the converter dolly's fifth wheel? * A) To provide additional braking power * B) To connect the dolly to the trailer * C) To carry extra cargo * D) To improve fuel efficiency

Answer 51

CORRECT ANSWER: B

Question 52

What is the primary purpose of the air lines on double or triple trailers? * A) To supply air to the tires * B) To cool the brakes * C) To supply air to the brake system * D) To provide air conditioning to the trailers

Answer 52

CORRECT ANSWER: C

Question 53

Why is it important to use the interior lights when loading and unloading students in the dark? * A) To make the bus look more attractive * B) To provide better visibility for the driver and students * C) To signal to other drivers * D) To save battery power

Answer 53

CORRECT ANSWER: B

Question 54

When should you activate the red flashing lights on a school bus? * A) When approaching a railroad crossing * B) When students are loading or unloading * C) When driving through a school zone D) When passing another vehicle

Answer 54

CORRECT ANSWER: B

Question 55

When should the bus’s emergency exit drills be conducted? * A) Weekly * B) Monthly * C) Twice a year * D) Only in an emergency

Answer 55

CORRECT ANSWER: C

Question 56

What is the best way to ensure passengers are seated safely? * A) By instructing them to sit properly and using seat belts if available * B) By letting them choose their seats * C) By telling them to sit quietly * D) By checking their seating positions before starting the bus

Answer 56

CORRECT ANSWER: A

Question 57

What should you inspect on the vehicle's cargo area? * A) The cleanliness of the cargo * B) The security of the cargo and the condition of the cargo doors * C) The color of the cargo * D) The weight of the cargo

Answer 57

CORRECT ANSWER: B

Question 58

What should you inspect on the vehicle's frame during an inspection? * A) The color of the frame * B) Cracks, bends, or any damage * C) The length of the frame * D) The brand of the frame

Answer 58

CORRECT ANSWER: B

Question 59

How should a driver handle a curve in the road when driving a heavy vehicle? * A) Accelerate through the curve * B) Brake hard in the middle of the curve * C) Slow down before entering the curve * D) Drive through the curve at the posted speed limit

Answer 59

CORRECT ANSWER: C

Question 60

When must a driver complete a new log entry? * A) At the beginning of each week * B) At the start of each work shift * C) At the end of each work shift * D) Every two hours during the shift

Answer 60

CORRECT ANSWER: B

Question 61

What should you do after raising the landing gear during coupling? * A) Apply the trailer brakes * B) Conduct a walk-around inspection * C) Lower the trailer suspension * D) Disconnect the air lines

Answer 61

CORRECT ANSWER: B

Question 62

Why should you avoid overfilling a tanker? * A) To reduce the weight of the vehicle * B) To allow for expansion of the liquid * C) To improve fuel efficiency * D) To prevent the tank from leaking

Answer 62

CORRECT ANSWER: B

Question 63

How should you handle a fire involving hazardous materials? * A) Attempt to put out the fire yourself * B) Move the vehicle to a safe location * C) Evacuate the area and call emergency services * D) Use water to extinguish the fire

Answer 63

CORRECT ANSWER: C

Question 64

What should you do if hazardous materials are spilled during transport? * A) Ignore the spill if it is small * B) Attempt to clean up the spill yourself * C) Follow your company's emergency procedures and notify the proper authorities * D) Continue driving to the nearest service station

Answer 64

CORRECT ANSWER: C

Question 65

What should you check after coupling a converter dolly to a rear trailer? * A) The tire pressure * B) The alignment of the trailers * C) The coupling is secure and the brakes are connected * D) The cargo weight

Answer 65

CORRECT ANSWER: C

Question 66

What should you do if a fight breaks out on the school bus? * A) Keep driving and address it later * B) Pull over to a safe location and intervene if safe to do so * C) Yell at the students to stop * D) Call the police immediately

Answer 66

CORRECT ANSWER: B

Question 67

What is the proper way to approach a school bus stop? * A) Speed up and stop quickly * B) Approach cautiously, using the amber warning lights * C) Stop and wait for students to approach the bus * D) Approach with the stop arm already extended

Answer 67

CORRECT ANSWER: B

Question 68

What should you do if the bus becomes disabled while on the route? * A) Stay on the bus and wait for help * B) Evacuate the passengers and wait for a tow truck * C) Call for help and keep passengers on the bus unless it’s unsafe * D) Have the passengers push the bus

Answer 68

CORRECT ANSWER: C

Question 69

When driving in heavy traffic, how should you maintain a safe following distance? * A) Follow the vehicle in front of you closely * B) Use the "one-second per 10 feet of vehicle length" rule * C) Follow the "three-second rule" * D) Use the "four-second rule"

Answer 69

CORRECT ANSWER: B

Question 70

How do you check the vehicle’s brakes? * A) By looking at them * B) By feeling for vibrations or hearing unusual noises during braking * C) By smelling the brakes * D) By inspecting the brake fluid color

Answer 70

CORRECT ANSWER: B

Question 71

What is the correct way to change lanes in a commercial vehicle? * A) Use mirrors, signal, and change lanes quickly * B) Signal and change lanes immediately * C) Use mirrors, signal, check blind spots, and change lanes slowly * D) Change lanes without signaling

Answer 71

CORRECT ANSWER: C

Question 72

What does "GVWR" stand for? * A) General Vehicle Weight Regulations * B) Gross Vehicle Weight Rating * C) General Vehicle Width Requirements * D) Gross Vehicle Width Rating

Answer 72

CORRECT ANSWER: B

Question 73

How often should cargo be inspected on a trip? * A) Every 50 miles * B) Every 100 miles * C) Within the first 50 miles and every 150 miles or 3 hours thereafter * D) Only at the start of the trip

Answer 73

CORRECT ANSWER: C

Question 74

What is the purpose of bulkheads in a tanker? * A) To divide the tank into smaller sections to reduce surge * B) To increase the tank's capacity * C) To separate different types of liquids * D) To improve fuel efficiency

Answer 74

CORRECT ANSWER: A

Question 75

What does the term "reportable quantity" refer to in hazardous materials transportation? * A) The amount of hazardous material that triggers the need for a spill report * B) The total weight of the vehicle * C) The number of containers being transported * D) The number of miles driven

Answer 75

CORRECT ANSWER: A

Question 76

What should you do before uncoupling a second trailer? * A) Apply the brakes * B) Drain the air tanks * C) Ensure the trailer wheels are chocked * D) Disconnect the electrical lines

Answer 76

CORRECT ANSWER: C

Question 77

How should you check the vehicle's parking brake? * A) By inspecting its color * B) By engaging it and attempting to move the vehicle slightly to ensure it holds * C) By checking the parking brake's brand * D) By measuring its size

Answer 77

CORRECT ANSWER: B

Question 78

What is the most important reason for performing a vehicle inspection? * A) To meet legal requirements * B) To ensure vehicle safety * C) To check for cleanliness * D) To adjust mirrors

Answer 78

CORRECT ANSWER: B

Question 79

How can you determine if your tanker is equipped with baffles or bulkheads? * A) Check the vehicle's registration * B) Look at the outside of the tank * C) Refer to the vehicle's manual or specifications * D) Listen for liquid movement

Answer 79

CORRECT ANSWER: C

Question 80

How should you drive a tanker on a downgrade? * A) Use a lower gear and controlled braking * B) Speed up to maintain control * C) Use the parking brake intermittently * D) Shift to a higher gear

Answer 80

CORRECT ANSWER: A

Question 81

What should you check for when inspecting the manhole covers on a tanker? * A) That they are clean * B) That they are properly secured and free of leaks * C) That they are painted * D) That they are lubricated

Answer 81

CORRECT ANSWER: B

Question 82

What is the significance of the "Hazardous Materials Table" in the HMR? * A) It lists the maintenance requirements for vehicles * B) It provides information on the classification, packaging, and labeling of hazardous materials * C) It details the fuel efficiency of different vehicles * D) It outlines the driver's schedule

Answer 82

CORRECT ANSWER: B

Question 83

What is the correct way to handle damaged containers of hazardous materials? * A) Ignore the damage and continue transporting * B) Report the damage and follow proper safety protocols for handling * C) Transfer the contents to another container without wearing protective gear * D) Clean the outside of the container and continue

Answer 83

CORRECT ANSWER: B

Question 84

What is the purpose of the "Hazardous Materials Table" in the HMR? * A) To list vehicle maintenance requirements * B) To provide information on the classification, packaging, and labeling of hazardous materials * C) To detail the fuel efficiency of different vehicles * D) To outline the driver's schedule

Answer 84

CORRECT ANSWER: B

Question 85

How should you approach a curve when pulling double or triple trailers? * A) Accelerate through the curve * B) Brake hard in the middle of the curve * C) Slow down before entering the curve * D) Maintain your speed through the curve

Answer 85

CORRECT ANSWER: C

Question 86

When parking double or triple trailers, what should you use to ensure they do not move? * A) The parking brake * B) Wheel chocks * C) The trailer hand valve * D) The emergency brake

Answer 86

CORRECT ANSWER: B

Question 87

How should you handle a student who is fighting on the bus? * A) Keep driving and address it later * B) Call the police immediately * C) Yell at the students to stop * D) Pull over to a safe location and intervene if safe to do so

Answer 87

CORRECT ANSWER: D

Question 88

When is it necessary to use the bus’s four-way flashers? * A) When driving in heavy traffic * B) When making a left turn * C) When the bus is stopped on the side of the road * D) When approaching a railroad crossing

Answer 88

CORRECT ANSWER: C

Question 89

What is the importance of checking the vehicle’s reflectors and reflective tape? * A) To see if they are clean * B) To ensure they are present and in good condition for visibility * C) To check their color * D) To inspect their size

Answer 89

CORRECT ANSWER: B

Question 90

When is it necessary to use the bus's four-way flashers? * A) When driving in heavy traffic * B) When making a left turn * C) When the bus is stopped on the side of the road * D) When approaching a railroad crossing

Answer 90

CORRECT ANSWER: C

Question 91

How can you help ensure the safety of students crossing the road after unloading? * A) By telling them to run quickly * B) By using the stop arm and ensuring all traffic has stopped * C) By using a whistle * D) By having them exit through the rear door

Answer 91

CORRECT ANSWER: B

Question 92

What is the minimum required tread depth for rear 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 92

CORRECT ANSWER: A

Question 93

What should you do if your vehicle starts to jackknife? * A) Accelerate to straighten out * B) Apply the brakes hard * C) Release the brakes and steer into the skid * D) Turn off the engine

Answer 93

CORRECT ANSWER: C

Question 94

What should you do if the bus becomes disabled while on the route? * A) Stay on the bus and wait for help * B) Evacuate the passengers and wait for a tow truck * C) Call for help and keep passengers on the bus unless it’s unsafe * D) Have the passengers push the bus

Answer 94

CORRECT ANSWER: C

Question 95

What should you do if hazardous materials are involved in a collision? * A) Attempt to clean up the materials yourself * B) Call emergency services and provide them with the shipping papers * C) Continue driving to avoid blocking traffic * D) Move the materials to a safer location

Answer 95

CORRECT ANSWER: B

Question 96

How often should cargo be inspected on a trip? * A) Every 50 miles * B) Every 100 miles * C) Within the first 50 miles and every 150 miles or 3 hours thereafter * D) Only at the start of the trip

Answer 96

CORRECT ANSWER: C

Question 97

What should you do if you need to park a loaded tanker vehicle on a hill? * a) Park with the front of the vehicle facing uphill * b) Park with the rear of the vehicle facing uphill * c) Use wheel chocks and parking brakes * d) Leave the engine running

Answer 97

CORRECT ANSWER: C

Question 98

What is the correct 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 98

CORRECT ANSWER: B

Question 99

What does the term "hazmat employer" refer to? * A) The driver of the vehicle * B) The company or individual who offers hazardous materials for transportation * C) The recipient of hazardous materials D) The vehicle's mechanic

Answer 99

CORRECT ANSWER: B

Question 100

Why is it important to check the vehicle’s registration and insurance documents? * A) To ensure they are the right color * B) To verify they are up to date and legally compliant * C) To check their brand * D) To inspect their size

Answer 100

CORRECT ANSWER: B