Question 1

Who is required to perform a driver post-trip inspection?
A) The driver
B) The dispatcher
C) A qualified technician
D) A service manager

Accepted Answer

The driver is responsible for performing a post-trip inspection to ensure the vehicle is in good condition and to identify any issues that need to be addressed.

Question 2

What does the acronym CSA represent in highway administration?
A) Computer sector acorns
B) Commercial sector action
C) Competent safey authority
D) Compliance,safety and accountability

Accepted Answer

CSA stands for Compliance, Safety, and Accountability, which is a Federal Motor Carrier Safety Administration (FMCSA) initiative to improve large truck and bus safety and ultimately reduce crashes, injuries, and fatalities that are related to commercial motor vehicles.

Question 3

Which type of PMI would require the most detailed inspection and service routine?
A) Schedule A
B) Schedule B
C) Schedule C
D) Schedule L

Accepted Answer

Schedule C typically represents the most comprehensive and detailed inspection and service routine among the options provided, requiring more frequent and thorough maintenance checks to ensure vehicle or equipment reliability and safety.

Question 4

Which API diesel engine oil classification is the minimum standard required when the engine is equipped with a diesel particulate filter (DPF)?
A) CH-2
B) CI-4
C) CI-2
D) CJ-4

Accepted Answer

CJ-4 is the minimum API classification required for diesel engines equipped with a diesel particulate filter (DPF) to ensure the oil meets the necessary specifications for engine protection and emission standards.

Question 5

Technician A says that most OEMs recommend the use of aftermarket diesel fuel conditioners for winter operation.Technician B says that diesel fuel refiners adjust the diesel fuel to perform in winter temperatures.Who is correct?
A) Technician A only
B) Technician B only
C) Both A and B
D) Neither A nor B

Accepted Answer

Technician B is correct because diesel fuel refiners do indeed adjust the composition of diesel fuel for colder temperatures to prevent issues like gelling. Most OEMs do not specifically recommend aftermarket diesel fuel conditioners; instead, they often suggest using winter-grade fuel or following specific winter operation guidelines.

Question 6

Which organization is responsible for defining OOS criteria?
A) FMVSS
B) WHMIS
C) CVSA
D) SAE

Accepted Answer

The Commercial Vehicle Safety Alliance (CVSA) is responsible for defining Out-of-Service (OOS) criteria, which are standards used to identify conditions under which a commercial vehicle or driver may be deemed unsafe to operate.

Question 7

Which of the following would represent the OOS specification for maximum permitted play at a fifth wheel pivot pin and bracket?
A) 1/4 inch
B) 3/8 inch
C) 1/2 inch
D) 3/4 inch

Accepted Answer

The Out-Of-Service (OOS) specification for maximum permitted play at a fifth wheel pivot pin and bracket is 3/8 inch. This is a standard measurement used to ensure safety and proper functioning of the fifth wheel mechanism on a trailer.

Question 8

On which of the following maintenance documents does the driver have input to?
A) Schedule A report
B) Schedule B report
C) Technician inspection report
D) Driver inspection report

Accepted Answer

The driver inspection report is the document where the driver has direct input, as it typically involves the driver conducting a pre-trip or post-trip inspection and noting any issues or concerns related to the vehicle's condition.

Question 9

Which of type of antifreeze mixture contains zero water?
A) EG
B) PG
C) ELC
D) WEC

Accepted Answer

The answer of Which of type of antifreeze mixture contains...

Question 10

What should be regarded as the maximum allowable stroke for a standard type 30,clamp-type brake chamber?
A) 2"
B) 1 3/4"
C) 2 1/4"
D) 8 3/32"

Accepted Answer

The maximum allowable stroke for a standard type 30, clamp-type brake chamber is 2".

Question 11

While greasing a U-joint cross,grease exits from only 3 of the four trunnion seals.What should you do first?
A) Leave it,grease will circulate in the cross
B) Replace the U-joint assembly
C) Pound on the bearing cap with large hammer
D) Loosen the journal cap over the affected trunnion and try again

Accepted Answer

Loosening the journal cap over the affected trunnion can help relieve any pressure or blockage, allowing grease to flow through the seal.

Question 12

Which of the following would be justification for deadlining a vehicle?
A) Evidence of a drivetrain problem that could prevent it from completing the trip
B) A safety related mechanical defect that could result in an accident
C) Excessively worn brake linings
D) All of the above

Accepted Answer

All the options listed (A, B, and C) are valid reasons for deadlining a vehicle as they all pose significant risks to the vehicle's operation and safety.

Question 13

Which of the following truck chassis components would represent the heaviest load on the electrical system?
A) Headlights
B) Heater fan
C) Electric wipers
D) Engine electronics

Accepted Answer

The heater fan typically draws more current than other components like headlights, electric wipers, or engine electronics, thus representing a heavier load on the electrical system.

Question 14

Which of the following trailer chassis systems causes the most OOS flags?
A) Van doors
B) Suspensions
C) Tires
D) Brakes

Accepted Answer

Brakes are a critical safety component, and issues with them are a common reason for out-of-service (OOS) violations during inspections.

Question 15

What is the minimum tread depth permitted on any two adjacent tread grooves before a truck tire should be classified OOS?
A) 1/32 inch
B) 2/32 inch
C) 3/32 inch
D) 3/16 inch

Accepted Answer

The minimum tread depth permitted on any two adjacent tread grooves before a truck tire should be classified as Out of Service (OOS) is 2/32 inch.

Question 16

Which of the following gear lube classifications would be appropriate for use in most current truck differential carriers?
A) API GL-4
B) API GL-5
C) API GL-6
D) API GL-7

Accepted Answer

API GL-5 is the classification commonly recommended for use in truck differential carriers due to its high-pressure characteristics suitable for hypoid and other types of gears in automotive differentials.

Question 17

What is another way of describing a zerk fitting?
A) Shrader valve
B) brake adjusting cowl
C) grease nipple
D) dump valve

Accepted Answer

A zerk fitting is commonly known as a grease nipple, which is a metal fitting used in mechanical systems to feed lubricants, usually lubricating grease, into a bearing under moderate to high pressure using a grease gun.

Question 18

What do EG,PG,and ELC all have in common?
A) Types of engine oil
B) Types of antifreeze
C) Types of gear oil
D) Types of refrigerant

Accepted Answer

EG (Ethylene Glycol), PG (Propylene Glycol), and ELC (Extended Life Coolant) are all types of antifreeze. Ethylene Glycol and Propylene Glycol are common antifreeze ingredients, while ELC refers to a type of coolant that has a longer service life than traditional coolants.

Question 19

Which of the following are used to determine maintenance scheduling by fleet managers?
A) Miles traveled
B) Engine or chassis hours
C) Prognostic software profiles
D) All of the above

Accepted Answer

Fleet managers use a combination of miles traveled, engine or chassis hours, and prognostic software profiles to effectively schedule maintenance for vehicles, ensuring optimal performance and longevity.

Question 20

When a spring pin fails to take grease and you know the zerk fitting to be functional,which of the following should you do first?
A) Replace the spring pin
B) Remove the weight from the spring
C) Replace the spring
D) Remove and inspect the spring pin

Accepted Answer

The answer of When a spring pin fails to take...

Quiz 4: Preventive Maintenance Program

Who is required to perform a driver post-trip inspection?

What does the acronym CSA represent in highway administration?

Which type of PMI would require the most detailed inspection and service routine?

Which API diesel engine oil classification is the minimum standard required when the engine is equipped with a diesel particulate filter (DPF) ?

Technician A says that most OEMs recommend the use of aftermarket diesel fuel conditioners for winter operation.Technician B says that diesel fuel refiners adjust the diesel fuel to perform in winter temperatures.Who is correct?

Which organization is responsible for defining OOS criteria?

Which of the following would represent the OOS specification for maximum permitted play at a fifth wheel pivot pin and bracket?

On which of the following maintenance documents does the driver have input to?

Which of type of antifreeze mixture contains zero water?

What should be regarded as the maximum allowable stroke for a standard type 30,clamp-type brake chamber?

While greasing a U-joint cross,grease exits from only 3 of the four trunnion seals.What should you do first?

Which of the following would be justification for deadlining a vehicle?

Which of the following truck chassis components would represent the heaviest load on the electrical system?

Which of the following trailer chassis systems causes the most OOS flags?

What is the minimum tread depth permitted on any two adjacent tread grooves before a truck tire should be classified OOS?

Which of the following gear lube classifications would be appropriate for use in most current truck differential carriers?

What is another way of describing a zerk fitting?

What do EG,PG,and ELC all have in common?

Which of the following are used to determine maintenance scheduling by fleet managers?

When a spring pin fails to take grease and you know the zerk fitting to be functional,which of the following should you do first?