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ME Set-3
IC Engines
65

IC Engines MCQ with Answers

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

IC Engines MCQ with Answers

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Related IC Engines MCQ with Answers

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

67) Pick up the wrong statement about supercharging

supercharging reduces knocking in diesel engines

there can be limited supercharging in petrol engines because of detonation

supercharging at high altitudes is essential

supercharging results in fuel economy

Answer is:

supercharging results in fuel economy

68) The actual volume of fresh charge admitted in 4-stroke petrol engine is

equal to stroke volume

equal to stroke volume and clearance volume

less than stroke volume

more than stroke volume

Answer is:

less than stroke volume

69) The magneto in an automobile is basically

transformer

d.c. generator

capacitor

magnetic circuit

Answer is:

d.c. generator

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