Consider the following statements:1. The only practical way of improving efficiency of Otto cycle is to increase the compression ratio of an internal combustion enigne2. Ericsson cycle needs heat transfer in all the processes3. Ericsson and Stirling cycles employ regenerative heat exchangers for reversible heat transfer4. Atkinson cycle has a greater specific work than a comparable Otto cycle engineWhich of the above statements are correct?

Consider the following statements:1. The only practical way of improvi

1.	Consider the following statements:1. The only practical way of improving efficiency of Otto cycle is to increase the compression ratio of an internal combustion enigne2. Ericsson cycle needs heat transfer in all the processes3. Ericsson and Stirling cycles employ regenerative heat exchangers for reversible heat transfer4. Atkinson cycle has a greater specific work than a comparable Otto cycle engineWhich of the above statements are correct?
A.	1, 2, 3 and 4
B.	1, 2 and 4 only
C.	2, 3 and 4 only
D.	1, 2 and 3 only
Answer» B. 1, 2 and 4 only

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