In an Otto cycle, the compression ratio is 9 : 1, and the pressure and temperature at the beginning of the compression process are 100 kPa and 10° C respectively. The heat addition by combustion gives the highest temperature as 2500 K. The highest cycle pressure is:

In an Otto cycle, the compression ratio is 9 : 1, and the pressure an

1.	In an Otto cycle, the compression ratio is 9 : 1, and the pressure and temperature at the beginning of the compression process are 100 kPa and 10° C respectively. The heat addition by combustion gives the highest temperature as 2500 K. The highest cycle pressure is:
A.	7.95 MPa
B.	2.17 MPa
C.	1.39 MPa
D.	8.50 MPa
Answer» B. 2.17 MPa

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In an Otto cycle, the compression ratio is 9 : 1, and the pressure and temperature at the beginning of the compression process are 100 kPa and 10° C respectively. The heat addition by combustion gives the highest temperature as 2500 K. The highest cycle pressure is:

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