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Internal Combustion Engines

Internal Combustion Engines
The reflectivity depends upon

Geometry of the reflector
Energy of neutrons
Properties of the reflector
All of these

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Internal Combustion Engines
In a petrol engine, the mixture has the lowest pressure at the

Beginning of suction stroke
End of compression stroke
End of suction stroke
None of these

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Internal Combustion Engines
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
Detonation
Oil sludge in the engine crank case
Formation of hard coating on piston skirts

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Internal Combustion Engines
The firing order in an I.C. engine depends upon

All of these
Arrangement of the cylinders
Design of crankshaft
Number of cylinders

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Internal Combustion Engines
Scavenging is usually done to increase

Fuel consumption
Thermal efficiency
Power output
Speed

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Internal Combustion Engines
The ratio of the volume of charge admitted at N.T.P. to the swept volume of the piston is called

Overall efficiency
Volumetric efficiency
Mechanical efficiency
Relative efficiency

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