Define (1) Volumetric efficiency (2) Stroke (3) Compression ratio
[3 marks]State reason for early opening of exhaust valve and late closing of inlet valve in 4-stroke Engine.
[4 marks]Why Diesel Engines are Called C.Iengines? Differentiate between S.I & C.I.
[7 marks]What do you understand by the terms – Research Octane number and Motor Octane number?
[3 marks]Explain any two compensating devices used in carburettor.
[4 marks]Explain the working principle of a simple carburetor with a neat sketch.
[7 marks]With a line diagram explain the working of common rail fuel injection system.
[7 marks]Draw actual p-v diagram of four stroke petrol engine.
[3 marks]Give comparison between wet sump and dry sump lubrication system.
[4 marks]Explain construction and working of Fuel Injector with neat sketch.
[7 marks]Explain the terms – Rich mixture and Lean mixture
[3 marks]Classify the combustion chambers for C.I. engine
[4 marks]Explain working of 4-stroke diesel engine using P-Vdiagram with neat sketch.
[7 marks]What do you mean by MPFI? Describe different types of MPFI in brief.
[3 marks]What is Knocking? Compare the SI and CI engine knocking
[4 marks]Describe working of Thermo-Syphon cooling system with neat sketch.
[7 marks]Define scavenging. State different types of scavenging.
[3 marks]Differentiate between Air cooling system and Water-cooling system
[4 marks]Enlist different methods of Turbo-charging. Explain - Pulse turbo charging method.
[7 marks]What are the purposes of supercharging the I.C. Engine?
[3 marks]Explain factors affecting flame propagation in S.I. Engine.
[4 marks]Explain the stages of combustion with P-θ diagram in C.I. engines
[7 marks]State important properties of SI engine fuels.
[3 marks]Discuss Heat balance sheet for four stroke C.I. engine.
[4 marks]Explain measurement of indicated power of multi cylinder engine by Morse test.
[7 marks]