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Mechanical Engineering Objective Questions { Internal Combustion Engines }

351. The mean effective pressure obtained from engine indicator indicates the
A.Maximum Pressure Developed
B.Minimum Pressure
C.Average Pressure
D.Exhaust Pressure
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352. For the same power developed in I.C. engines, the cheaper system is
A.Naturally Aspirated
C.Centrifugal Pump
D.Turbo Charger
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353. Installation of supercharger on a four-cycle diesel engine can result in the following percentage increase in power
A.Upto 25%
B.Upto 35%
C.Upto 100%
D.Upto 75%
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354. Scavenging is usually done to increase
A.Thermal Efficiency
C.Power Output
D.Fuel Consumption
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355. Which of the following is the lightest and most volatile liquid fuel
C.Fuel Oil
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356. The theoretically correct air fuel ratio for petrol engine is of the order of
A.6 : 1
B.9 : 1
C.12 : 1
D.15 : 1
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357. Air fuel ratio for idling speed of a petrol engine is approximately
A.1 : 1
B.5 : 1
D.15 : 1
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