Performance and Testing of Engines MCQ Questions & Answers | Automobile Engineering Page-3 section-1

21.
Engine cranks do no start during winter because of
1. Battery discharge
2. Weak spark
3. Worn out engine
4. Lean mixture

A. 1, 2 and 3 are correct

B. 2, 3 and 4 are correct

C. 3, 4 and 1 are correct

D. 4, 1 and 2 are correct

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22.
The device for smoothing out the power impulses from the engine is called

A. Flywheel

B. Clutch

C. Torque converter

D. Differential

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23.
The tractive effort increases if the wheel diameter is

A. Increased

B. Decreased

C. Not changed

D. None of these

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24.
If BP of a four-stroke petrol engine is 28 kW and mechanical efficiency is 80%, then IP is . . . . . . . . .

A. 3.5 kW

B. 35 kW

C. 22.4 kW

D. None of the above

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25.
The main purpose of inspection is-

A. Electrical equipment

B. Mechanical build up of chassis or frame

C. Complaints rectification and repairs

D. All are correct

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26.
The testing equipment which gives a very close approximation of a road test in garage is called

A. Engine dynamometer

B. Chassis dynamometer

C. Engine tester

D. Tachometer

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27.
Morse test is carried out to determine the IP of a . . . . . . . .

A. Single cylinder petrol engine

B. Single cylinder diesel engine

C. Multi cylinder engine

D. Double acting steam engine

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28.
Which one of the following method for determination of engine friction is only applicable for diesel engines and also the gross fuel consumption is plotted against brake power and it is extended backwards to zero fuel consumption?

A. Morse test

B. Motoring method

C. Deceleration method

D. William's line method

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29.
High performance sports car with active exhaust system allows . . . . . . . .

A. Larger flow area, reduces the restriction in the exhaust system

B. To maintain the flow area without affecting the restriction in the exhaust system

C. Smaller flow area, reduces the restriction in the exhaust system

D. None of the above

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30.
The ratio of brake power to indicated power of an IC engine is called

A. Mechanical efficiency

B. Thermal efficiency

C. Volumetric efficiency

D. Relative efficiency

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Performance and Testing of Engines MCQ Questions & Answers | Automobile Engineering

21. Engine cranks do no start during winter because of 1. Battery discharge 2. Weak spark 3. Worn out engine 4. Lean mixture

Answer & Solution

22. The device for smoothing out the power impulses from the engine is called

Answer & Solution

23. The tractive effort increases if the wheel diameter is

Answer & Solution

24. If BP of a four-stroke petrol engine is 28 kW and mechanical efficiency is 80%, then IP is . . . . . . . . .

Answer & Solution

25. The main purpose of inspection is-

Answer & Solution

26. The testing equipment which gives a very close approximation of a road test in garage is called

Answer & Solution

27. Morse test is carried out to determine the IP of a . . . . . . . .

Answer & Solution

28. Which one of the following method for determination of engine friction is only applicable for diesel engines and also the gross fuel consumption is plotted against brake power and it is extended backwards to zero fuel consumption?

Answer & Solution

29. High performance sports car with active exhaust system allows . . . . . . . .

Answer & Solution

30. The ratio of brake power to indicated power of an IC engine is called

Answer & Solution

21.
Engine cranks do no start during winter because of
1. Battery discharge
2. Weak spark
3. Worn out engine
4. Lean mixture

22.
The device for smoothing out the power impulses from the engine is called

23.
The tractive effort increases if the wheel diameter is

24.
If BP of a four-stroke petrol engine is 28 kW and mechanical efficiency is 80%, then IP is . . . . . . . . .

25.
The main purpose of inspection is-

26.
The testing equipment which gives a very close approximation of a road test in garage is called

27.
Morse test is carried out to determine the IP of a . . . . . . . .

28.
Which one of the following method for determination of engine friction is only applicable for diesel engines and also the gross fuel consumption is plotted against brake power and it is extended backwards to zero fuel consumption?

29.
High performance sports car with active exhaust system allows . . . . . . . .

30.
The ratio of brake power to indicated power of an IC engine is called