A 45-passenger bus is operating under a special permit for a school event. The permit specifies a maximum gross vehicle weight (GVW) of 28,000 lbs and a maximum gross combination weight (GCW) of 35,000 lbs. The bus itself has an unladen weight of 22,000 lbs. If the bus is loaded with 30 passengers, each averaging 150 lbs, and additional cargo weighing 1,500 lbs, what is the total operating weight of the bus?

27,750 lbs. The total operating weight is calculated by adding the unladen weight of the bus to the weight of the passengers and cargo. Calculation: 22,000 lbs (bus) + (30 passengers * 150 lbs/passenger) + 1,500 lbs (cargo) = 22,000 + 4,500 + 1,500 = 28,000 lbs. This is within the GVW limit. The question asks for the operating weight, not the GCW.

During a pre-trip inspection of a passenger bus equipped with air brakes, you discover that the air pressure is not building up to the normal operating range (90-120 PSI) after 5 minutes of engine operation. The air governor is functioning correctly. What is the MOST likely cause of this issue?

A significant leak in the service or parking brake system.. A significant leak in the air brake system will cause the compressor to work continuously without building sufficient pressure. This is the most common reason for slow or non-existent air pressure build-up in a properly functioning compressor and governor setup. A frozen air dryer would typically cause rapid pressure loss or no air at all, and insufficient RPMs would slow build-up but not necessarily prevent it entirely over 5 minutes.

You are driving a bus and approaching a railroad crossing marked with a standard, active warning signal (flashing lights and audible bells). According to Indiana CDL regulations, what is the MINIMUM action you must take before crossing?

Stop the bus at least 15 feet but no more than 50 feet from the nearest rail.. Indiana law, like most states for CDL holders, requires drivers of buses to stop at all grade crossings marked with a sign indicating a railroad crossing when warning signals are active. The stop must be made at least 15 feet but no more than 50 feet from the nearest rail. After stopping, the driver must then look and listen for approaching trains before proceeding.

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About this practice exam

Free Indiana CDL Passenger Endorsement Test practice test with 25 realistic multiple-choice questions, instant grading, and explanations. Study with drill mode, category score reports, and a personalized review plan.

Exam format

25 multiple-choice practice questions
Drill mode with instant feedback and explanations after each answer

Study tips

Review the official exam content outline before your first practice run.
Take the full practice exam once to establish a baseline score by category.
Focus review on categories where you score below the passing threshold.
Re-take missed questions in drill mode until you can explain each correct answer.
Schedule the real exam only after consistent passing scores on practice tests.

Sample CDL Passenger Endorsement practice questions

Try a few representative questions below. Each includes the correct answer and a short explanation — the same style you'll see in the full practice test.

Question 1Weight and Load Limits
A 45-passenger bus is operating under a special permit for a school event. The permit specifies a maximum gross vehicle weight (GVW) of 28,000 lbs and a maximum gross combination weight (GCW) of 35,000 lbs. The bus itself has an unladen weight of 22,000 lbs. If the bus is loaded with 30 passengers, each averaging 150 lbs, and additional cargo weighing 1,500 lbs, what is the total operating weight of the bus?
- A.28,000 lbs
- B.27,750 lbs(Correct)
- C.23,500 lbs
- D.26,000 lbs
Explanation
The total operating weight is calculated by adding the unladen weight of the bus to the weight of the passengers and cargo. Calculation: 22,000 lbs (bus) + (30 passengers * 150 lbs/passenger) + 1,500 lbs (cargo) = 22,000 + 4,500 + 1,500 = 28,000 lbs. This is within the GVW limit. The question asks for the operating weight, not the GCW.
Question 2Air Brakes
During a pre-trip inspection of a passenger bus equipped with air brakes, you discover that the air pressure is not building up to the normal operating range (90-120 PSI) after 5 minutes of engine operation. The air governor is functioning correctly. What is the MOST likely cause of this issue?
- A.The air compressor is over-lubricating the system.
- B.The air dryer is malfunctioning and has frozen.
- C.A significant leak in the service or parking brake system.(Correct)
- D.The engine is not reaching sufficient RPMs.
Explanation
A significant leak in the air brake system will cause the compressor to work continuously without building sufficient pressure. This is the most common reason for slow or non-existent air pressure build-up in a properly functioning compressor and governor setup. A frozen air dryer would typically cause rapid pressure loss or no air at all, and insufficient RPMs would slow build-up but not necessarily prevent it entirely over 5 minutes.
Question 3Railroad Crossings
You are driving a bus and approaching a railroad crossing marked with a standard, active warning signal (flashing lights and audible bells). According to Indiana CDL regulations, what is the MINIMUM action you must take before crossing?
- A.Activate the hazard lights and proceed with caution.
- B.Honk the horn to alert any pedestrians.
- C.Slow down and listen for an approaching train.
- D.Stop the bus at least 15 feet but no more than 50 feet from the nearest rail.(Correct)
Explanation
Indiana law, like most states for CDL holders, requires drivers of buses to stop at all grade crossings marked with a sign indicating a railroad crossing when warning signals are active. The stop must be made at least 15 feet but no more than 50 feet from the nearest rail. After stopping, the driver must then look and listen for approaching trains before proceeding.

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Frequently asked questions

How many questions are on this CDL Passenger Endorsement practice test?

This practice test includes 25 multiple-choice questions designed to mirror the format and difficulty of the real Indiana CDL Passenger Endorsement Test.

Is this CDL Passenger Endorsement practice test free?

Yes. You can start practicing for free. Create an account to save progress, track weak categories, and retake the exam.

Do I get explanations after each question?

Yes. In drill mode you see why the correct answer is right, why distractors are wrong, and practical examples where relevant.

How should I use this practice test to prepare?

Take the full exam under timed conditions, review missed questions by category, then focus study on your weakest sections before scheduling the real exam.

Does this replace official exam materials?

No. Use this as a supplement alongside official candidate information bulletins, textbooks, and hands-on experience required for your license or certification.

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