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 enigne
2. Ericsson cycle needs heat transfer in all the processes
3. Ericsson and Stirling cycles employ regenerative heat exchangers for reversible heat transfer
4. Atkinson cycle has a greater specific work than a comparable Otto cycle engine
Which of the above statements are correct?1
1, 2, 3 and 4
2
1, 2 and 4 only
3
2, 3 and 4 only
4
1, 2 and 3 only
5
Question Not Attempted