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Engineering
Mechanical
ME Set-3
IC Engines
62

IC Engines MCQ with Answers

62) The size of inlet valve of.an engine in comparison to exhaust valve is

more

less

same

more/less depending on capacity of engine

Answer is:

less

IC Engines MCQ with Answers

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Related IC Engines MCQ with Answers

63) In a cycle, the spark lasts roughly for

1 sec

0.1 sec

0.01 sec

0.001 sec

Answer is:

0.001 sec

64) Which of the following is false statement :Excess quantities of sulphur in diesel fuel are Objectionable because it may cause the following

piston ring and cylinder wear

formation of hard coating on piston skirts

oil sludge in the engine crank case

detonation

Answer is:

detonation

65) Which of the following is false statement. Some of the methods used to reduce diesel smoke are as follows

using additives in the fuel

engine derating i.e. reducing the maxi-mum flow of fuel

increasing the compression ratio

adherence to proper fuel specification

Answer is:

increasing the compression ratio

66) The fuel air ratio in a petrol engine fitted with suction carburettor, operating with dirty air filter as compared to clean filter will be

higher

lower

remain unaffected

unpredictable

Answer is:

higher

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