Maintenance And Troubleshooting In Automobile — Part 2 MCQs with Explanations
Practice high-yield Automobile Engineering MCQs on Maintenance And Troubleshooting In Automobile — Part 2 with worked academic solutions for PPSC, FPSC, Transport Dept.
Questions
38
Difficulty Level
Exam-Level
Target Exams
PPSC, FPSC, Transport Dept
Estimated Time
46 mins
Exam-Level PPSC FPSC Transport Dept
Verified for Commission Syllabus • Oct 14, 2026
38
Verified Practice Questions
Interactive test mode with detailed academic worked solutions
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🎉 Set complete! All 38 questions answered.
Question 1 of 38
★ PPSC
★ FPSC
★ PPSC
★ FPSC
The spark plug generally is to be replaced when the vehicle has run about
Correct Answer: Option D — 20000 km
Detailed Academic Explanation:
20000 km is the correct answer to “The spark plug generally is to be replaced when the vehicle has run about”. This question is standard in competitive examination syllabi for Maintenance And Troubleshooting In Automobile.
💡Key Conceptual Anchor:Maintenance And Troubleshooting In Automobile
Question 2 of 38
★ PPSC
★ FPSC
★ PPSC
★ FPSC
The type of problem suspected when a cylinder has an insufficient degree of compression is
Correct Answer: Option A — Leakage somewhere within the combustion chamber
Detailed Academic Explanation:
Leakage somewhere within the combustion chamber is the correct answer to “The type of problem suspected when a cylinder has an insufficient degree of compression is”. This question is standard in competitive examination syllabi for Maintenance And Troubleshooting In Automobile.
💡Key Conceptual Anchor:Maintenance And Troubleshooting In Automobile
Question 3 of 38
★ PPSC
★ FPSC
★ PPSC
★ FPSC
What is necessary for tuning procedure?
Correct Answer: Option D — All are correct
Detailed Academic Explanation:
All are correct is the correct answer to “What is necessary for tuning procedure”. This question is standard in competitive examination syllabi for Maintenance And Troubleshooting In Automobile.
💡Key Conceptual Anchor:Maintenance And Troubleshooting In Automobile
Question 4 of 38
★ PPSC
★ FPSC
★ PPSC
★ FPSC
For tuning up a jeep engine which is adjusted correctly at last-
Correct Answer: Option B — Carburettor
Detailed Academic Explanation:
Carburettor is the correct answer to “For tuning up a jeep engine which is adjusted correctly at last-”. This question is standard in competitive examination syllabi for Maintenance And Troubleshooting In Automobile.
💡Key Conceptual Anchor:Maintenance And Troubleshooting In Automobile
Question 5 of 38
★ PPSC
★ FPSC
★ PPSC
★ FPSC
The carbon from cylinder head is removed with
Correct Answer: Option A — Scraper
Detailed Academic Explanation:
Scraper is the correct answer to “The carbon from cylinder head is removed with”. This question is standard in competitive examination syllabi for Maintenance And Troubleshooting In Automobile.
💡Key Conceptual Anchor:Maintenance And Troubleshooting In Automobile
Question 6 of 38
★ PPSC
★ FPSC
★ PPSC
★ FPSC
Noisy valve operation is due to
Correct Answer: Option C — Worn out valve springs
Detailed Academic Explanation:
Worn out valve springs is the correct answer to “Noisy valve operation is due to”. This question is standard in competitive examination syllabi for Maintenance And Troubleshooting In Automobile.
💡Key Conceptual Anchor:Maintenance And Troubleshooting In Automobile
Question 7 of 38
★ PPSC
★ FPSC
★ PPSC
★ FPSC
Which of the following cause is of rod noise?
Correct Answer: Option C — Both are correct
Detailed Academic Explanation:
Both are correct is the correct answer to “Which of the following cause is of rod noise”. This question is standard in competitive examination syllabi for Maintenance And Troubleshooting In Automobile.
💡Key Conceptual Anchor:Maintenance And Troubleshooting In Automobile
Question 8 of 38
★ PPSC
★ FPSC
★ PPSC
★ FPSC
Following should be used for tightening engine cylinder head bolts:
Correct Answer: Option A — Torque wrench
Detailed Academic Explanation:
Torque wrench is the correct answer to “Following should be used for tightening engine cylinder head bolts:”. This question is standard in competitive examination syllabi for Maintenance And Troubleshooting In Automobile.
💡Key Conceptual Anchor:Maintenance And Troubleshooting In Automobile
Question 9 of 38
★ PPSC
★ FPSC
★ PPSC
★ FPSC
What is the possible cause of trouble "engine runs but misses are cylinder"?
Correct Answer: Option D — All are correct
Detailed Academic Explanation:
All are correct is the correct answer to “What is the possible cause of trouble "engine runs but misses are cylinder"”. This question is standard in competitive examination syllabi for Maintenance And Troubleshooting In Automobile.
💡Key Conceptual Anchor:Maintenance And Troubleshooting In Automobile
Question 10 of 38
★ PPSC
★ FPSC
★ PPSC
★ FPSC
Clashing of gears when shifting into high could result from
Correct Answer: Option B — A defective synchronize
Detailed Academic Explanation:
A defective synchronize is the correct answer to “Clashing of gears when shifting into high could result from”. This question is standard in competitive examination syllabi for Maintenance And Troubleshooting In Automobile.
💡Key Conceptual Anchor:Maintenance And Troubleshooting In Automobile
Question 11 of 38
★ PPSC
★ FPSC
★ PPSC
★ FPSC
Choose the correct statement with regard to inspection of the engine during driving.
Correct Answer: Option D — The engine's idling speed will increase by a light degree immediately after a cold engine has been started, it will drop as the engine warms up, and it will eventually reach the standard level
Detailed Academic Explanation:
The engine's idling speed will increase by a light degree immediately after a cold engine has been started, it will drop as the engine warms up, and it will eventually reach the standard level is the correct answer to “Choose the correct statement with regard to inspection of the engine during driving.”. This question is standard in competitive examination syllabi for Maintenance And Troubleshooting In Automobile.
💡Key Conceptual Anchor:Maintenance And Troubleshooting In Automobile
Question 12 of 38
★ PPSC
★ FPSC
★ PPSC
★ FPSC
A bent wheel of the car should be
Correct Answer: Option C — Straightened
Detailed Academic Explanation:
Straightened is the correct answer to “A bent wheel of the car should be”. This question is standard in competitive examination syllabi for Maintenance And Troubleshooting In Automobile.
💡Key Conceptual Anchor:Maintenance And Troubleshooting In Automobile
Question 13 of 38
★ PPSC
★ FPSC
★ PPSC
★ FPSC
The noises due to connecting rod are usually . . . . . . . . intense than those originated by main bearings.
Correct Answer: Option A — More
Detailed Academic Explanation:
More is the correct answer to “The noises due to connecting rod are usually . . . . . . . . intense than those originated by main bearings.”. This question is standard in competitive examination syllabi for Maintenance And Troubleshooting In Automobile.
💡Key Conceptual Anchor:Maintenance And Troubleshooting In Automobile
Question 14 of 38
★ PPSC
★ FPSC
★ PPSC
★ FPSC
Match List-I with List-II and choose the correct answer: List-I List-II a. Tachometer 1. Bimetal electric type b. Odometer 2. Decibel c. Fuel gauge 3. 90 kmph d. Pressure horn 4. 6000 rpm 5. 3750 km
Correct Answer: Option A — a-4, b-5, c-1, d-2
Detailed Academic Explanation:
a-4, b-5, c-1, d-2 is the correct answer to “Match List-I with List-II and choose the correct answer: List-I List-II a. Tachometer 1. Bimetal electric type b. Odometer 2. Decibel c. Fuel gauge 3. 90 kmph d. Pressure horn 4. 6000 rpm 5. 3750 km”. This question is standard in competitive examination syllabi for Maintenance And Troubleshooting In Automobile.
💡Key Conceptual Anchor:Maintenance And Troubleshooting In Automobile
Question 15 of 38
★ PPSC
★ FPSC
★ PPSC
★ FPSC
Clutch dragging is noticeable:
Correct Answer: Option A — When shifting gears
Detailed Academic Explanation:
When shifting gears is the correct answer to “Clutch dragging is noticeable:”. This question is standard in competitive examination syllabi for Maintenance And Troubleshooting In Automobile.
💡Key Conceptual Anchor:Maintenance And Troubleshooting In Automobile
Question 16 of 38
★ PPSC
★ FPSC
★ PPSC
★ FPSC
Checking the phasing of an in-line fuel injection pump is carried out to
Correct Answer: Option B — Ensure that each element commences delivery at the correct angular interval
Detailed Academic Explanation:
Ensure that each element commences delivery at the correct angular interval is the correct answer to “Checking the phasing of an in-line fuel injection pump is carried out to”. This question is standard in competitive examination syllabi for Maintenance And Troubleshooting In Automobile.
💡Key Conceptual Anchor:Maintenance And Troubleshooting In Automobile
Question 17 of 38
★ PPSC
★ FPSC
★ PPSC
★ FPSC
Scuff wear is caused by:
Correct Answer: Option B — Momentary welds at TDC
Detailed Academic Explanation:
Momentary welds at TDC is the correct answer to “Scuff wear is caused by:”. This question is standard in competitive examination syllabi for Maintenance And Troubleshooting In Automobile.
💡Key Conceptual Anchor:Maintenance And Troubleshooting In Automobile
Question 18 of 38
★ PPSC
★ FPSC
★ PPSC
★ FPSC
Vapour lock occurs in the
Correct Answer: Option A — Fuel line or pump
Detailed Academic Explanation:
Fuel line or pump is the correct answer to “Vapour lock occurs in the”. This question is standard in competitive examination syllabi for Maintenance And Troubleshooting In Automobile.
💡Key Conceptual Anchor:Maintenance And Troubleshooting In Automobile
Question 19 of 38
★ PPSC
★ FPSC
★ PPSC
★ FPSC
Car pulls to one side while braking due to
Correct Answer: Option B — Loose rear springs
Detailed Academic Explanation:
Loose rear springs is the correct answer to “Car pulls to one side while braking due to”. This question is standard in competitive examination syllabi for Maintenance And Troubleshooting In Automobile.
💡Key Conceptual Anchor:Maintenance And Troubleshooting In Automobile
Question 20 of 38
★ PPSC
★ FPSC
★ PPSC
★ FPSC
Sudden breakdown chance is more in . . . . . . . . maintenance.
Correct Answer: Option A — Routine
Detailed Academic Explanation:
Routine is the correct answer to “Sudden breakdown chance is more in . . . . . . . . maintenance.”. This question is standard in competitive examination syllabi for Maintenance And Troubleshooting In Automobile.
💡Key Conceptual Anchor:Maintenance And Troubleshooting In Automobile
Question 21 of 38
★ PPSC
★ FPSC
★ PPSC
★ FPSC
The point gap of lucas TVS is-
Correct Answer: Option B — 0.41 mm
Detailed Academic Explanation:
0.41 mm is the correct answer to “The point gap of lucas TVS is-”. This question is standard in competitive examination syllabi for Maintenance And Troubleshooting In Automobile.
💡Key Conceptual Anchor:Maintenance And Troubleshooting In Automobile
Question 22 of 38
★ PPSC
★ FPSC
★ PPSC
★ FPSC
An incorrectly timed engine can result in
Correct Answer: Option C — Poor engine performance
Detailed Academic Explanation:
Poor engine performance is the correct answer to “An incorrectly timed engine can result in”. This question is standard in competitive examination syllabi for Maintenance And Troubleshooting In Automobile.
💡Key Conceptual Anchor:Maintenance And Troubleshooting In Automobile
Question 23 of 38
★ PPSC
★ FPSC
★ PPSC
★ FPSC
The normal oil pressure in a new or overhauled engine must be . . . . . . . . kg/cm 2 .
Correct Answer: Option B — 2.5 to 3
Detailed Academic Explanation:
2.5 to 3 is the correct answer to “The normal oil pressure in a new or overhauled engine must be . . . . . . . . kg/cm 2 .”. This question is standard in competitive examination syllabi for Maintenance And Troubleshooting In Automobile.
💡Key Conceptual Anchor:Maintenance And Troubleshooting In Automobile
Question 24 of 38
★ PPSC
★ FPSC
★ PPSC
★ FPSC
The recommended oil change schedule for cars is
Correct Answer: Option D — 10000 km
Detailed Academic Explanation:
10000 km is the correct answer to “The recommended oil change schedule for cars is”. This question is standard in competitive examination syllabi for Maintenance And Troubleshooting In Automobile.
💡Key Conceptual Anchor:Maintenance And Troubleshooting In Automobile
Question 25 of 38
★ PPSC
★ FPSC
★ PPSC
★ FPSC
The point gap of prestolite is-
Correct Answer: Option A — 0.50 mm
Detailed Academic Explanation:
0.50 mm is the correct answer to “The point gap of prestolite is-”. This question is standard in competitive examination syllabi for Maintenance And Troubleshooting In Automobile.
💡Key Conceptual Anchor:Maintenance And Troubleshooting In Automobile
Question 26 of 38
★ PPSC
★ FPSC
★ PPSC
★ FPSC
Excessive oil consumption in an automobile is due to . . . . . . . .
Correct Answer: Option D — All of the above
Detailed Academic Explanation:
All of the above is the correct answer to “Excessive oil consumption in an automobile is due to . . . . . . . .”. This question is standard in competitive examination syllabi for Maintenance And Troubleshooting In Automobile.
💡Key Conceptual Anchor:Maintenance And Troubleshooting In Automobile
Question 27 of 38
★ PPSC
★ FPSC
★ PPSC
★ FPSC
Petrol engine is not starting due to 1. Rich mixture supplied 2. Lean mixture supplied 3. Spark plug electrode eaten 4. Defect in condenser
Correct Answer: Option B — 2 and 3 are correct
Detailed Academic Explanation:
2 and 3 are correct is the correct answer to “Petrol engine is not starting due to 1. Rich mixture supplied 2. Lean mixture supplied 3. Spark plug electrode eaten 4. Defect in condenser”. This question is standard in competitive examination syllabi for Maintenance And Troubleshooting In Automobile.
💡Key Conceptual Anchor:Maintenance And Troubleshooting In Automobile
Question 28 of 38
★ PPSC
★ FPSC
★ PPSC
★ FPSC
The excessive axial play of crankshaft gives a . . . . . . . . noise at irregular intervals.
Correct Answer: Option A — Higher
Detailed Academic Explanation:
Higher is the correct answer to “The excessive axial play of crankshaft gives a . . . . . . . . noise at irregular intervals.”. This question is standard in competitive examination syllabi for Maintenance And Troubleshooting In Automobile.
💡Key Conceptual Anchor:Maintenance And Troubleshooting In Automobile
Question 29 of 38
★ PPSC
★ FPSC
★ PPSC
★ FPSC
It is necessary to time the engine correctly so as to
Correct Answer: Option B — Ensure the correct opening and closing of the valves
Detailed Academic Explanation:
Ensure the correct opening and closing of the valves is the correct answer to “It is necessary to time the engine correctly so as to”. This question is standard in competitive examination syllabi for Maintenance And Troubleshooting In Automobile.
💡Key Conceptual Anchor:Maintenance And Troubleshooting In Automobile
Question 30 of 38
★ PPSC
★ FPSC
★ PPSC
★ FPSC
Which one of the following is the cause of overheating?
Correct Answer: Option D — All are correct
Detailed Academic Explanation:
All are correct is the correct answer to “Which one of the following is the cause of overheating”. This question is standard in competitive examination syllabi for Maintenance And Troubleshooting In Automobile.
💡Key Conceptual Anchor:Maintenance And Troubleshooting In Automobile
Question 31 of 38
★ PPSC
★ FPSC
★ PPSC
★ FPSC
Crankshaft thumping may originate from which one of the following cause-
Correct Answer: Option D — All are correct
Detailed Academic Explanation:
All are correct is the correct answer to “Crankshaft thumping may originate from which one of the following cause-”. This question is standard in competitive examination syllabi for Maintenance And Troubleshooting In Automobile.
💡Key Conceptual Anchor:Maintenance And Troubleshooting In Automobile
Question 32 of 38
★ PPSC
★ FPSC
★ PPSC
★ FPSC
Choose the correct statement with regard to inspection of the brake booster.
Correct Answer: Option C — The brake booster will be operating normally if, when the brake pedal is depressed a number of times while the engine is stopped and held in position while the engine is started, the pedal subsequently moves downwards
Detailed Academic Explanation:
The brake booster will be operating normally if, when the brake pedal is depressed a number of times while the engine is stopped and held in position while the engine is started, the pedal subsequently moves downwards is the correct answer to “Choose the correct statement with regard to inspection of the brake booster.”. This question is standard in competitive examination syllabi for Maintenance And Troubleshooting In Automobile.
💡Key Conceptual Anchor:Maintenance And Troubleshooting In Automobile
Question 33 of 38
★ PPSC
★ FPSC
★ PPSC
★ FPSC
Which one of the following is smoky exhaust?
Correct Answer: Option C — Both
Detailed Academic Explanation:
Both is the correct answer to “Which one of the following is smoky exhaust”. This question is standard in competitive examination syllabi for Maintenance And Troubleshooting In Automobile.
💡Key Conceptual Anchor:Maintenance And Troubleshooting In Automobile
Question 34 of 38
★ PPSC
★ FPSC
★ PPSC
★ FPSC
In case of breakdown maintenance find the odd one out
Correct Answer: Option C — Production dose not stop
Detailed Academic Explanation:
Production dose not stop is the correct answer to “In case of breakdown maintenance find the odd one out”. This question is standard in competitive examination syllabi for Maintenance And Troubleshooting In Automobile.
💡Key Conceptual Anchor:Maintenance And Troubleshooting In Automobile
Question 35 of 38
★ PPSC
★ FPSC
★ PPSC
★ FPSC
The cam angle for lucas TVS is-
Correct Answer: Option B — 30°
Detailed Academic Explanation:
30° is the correct answer to “The cam angle for lucas TVS is-”. This question is standard in competitive examination syllabi for Maintenance And Troubleshooting In Automobile.
💡Key Conceptual Anchor:Maintenance And Troubleshooting In Automobile
Question 36 of 38
★ PPSC
★ FPSC
★ PPSC
★ FPSC
Productive maintenance is a type of
Correct Answer: Option A — Preventive maintenance
Detailed Academic Explanation:
Preventive maintenance is the correct answer to “Productive maintenance is a type of”. This question is standard in competitive examination syllabi for Maintenance And Troubleshooting In Automobile.
💡Key Conceptual Anchor:Maintenance And Troubleshooting In Automobile
Question 37 of 38
★ PPSC
★ FPSC
★ PPSC
★ FPSC
Choose the correct statement with regard to inspection of the steering system.
Correct Answer: Option A — Inspection of steering wheel freeplay must always be carried out while the engine is stopped
Detailed Academic Explanation:
Inspection of steering wheel freeplay must always be carried out while the engine is stopped is the correct answer to “Choose the correct statement with regard to inspection of the steering system.”. This question is standard in competitive examination syllabi for Maintenance And Troubleshooting In Automobile.
💡Key Conceptual Anchor:Maintenance And Troubleshooting In Automobile
Question 38 of 38
★ PPSC
★ FPSC
★ PPSC
★ FPSC
What action should be taken if one of an engine's exhaust rocker arms becomes worn beyond the service limit?
Correct Answer: Option D — Replace the exhaust rocker shaft and the defective rocker arm
Detailed Academic Explanation:
Replace the exhaust rocker shaft and the defective rocker arm is the correct answer to “What action should be taken if one of an engine's exhaust rocker arms becomes worn beyond the service limit”. This question is standard in competitive examination syllabi for Maintenance And Troubleshooting In Automobile.
💡Key Conceptual Anchor:Maintenance And Troubleshooting In Automobile
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Air Pollution And Its Control In Automobile — Part 1
Master the next curriculum module with 40 exam-standard MCQs.
In competitive commission exams (FPSC, PPSC, KPPSC, SPSC, CSS, PMS), questions are frequently phrased with distractor options designed to catch rote learners. Whenever you answer an MCQ, read the Detailed Academic Explanation and Conceptual Anchor to understand why the remaining options are incorrect.