Higher Study | Internal Combustion Engine | IC Engine Cycles

Which of the statements is true?
For the same values of peak pressure, peak temperature and heat rejection, the correct order of efficiencies for Otto, Dual and Diesel cycles is
Compression ratio in case of SI engine is in the range of
Diesel engines are generally
The efficiency of the diesel cycle increases
When does ignition initiates in a Spark Ignition Engine?
An ideal air standard cycle is shown in the figure. The same cycle, when represented on the pressure-volume co-ordinate, takes the form,
Statement (I): Air-blast injection in diesel engines could reduce engine efficiency. Statement (II): Air-blast injection in diesel engine is not instantaneous but happens when the piston moves outward with the injection valve remaining open for whatever reason.
Where does mixing of fuel and air take place in case of diesel engine?
How is the heat added in the Diesel cycle?
The curve show in the given figure is characteristic of diesel engines What does Y-axis represent ?
Which cycle is shown in the figure?
In an Otto cycle, how does heat addition takes place?
What is the position of the valves in the compression stroke of a 4 stroke diesel engine?
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