1.

The pressure ratio across a gas turbine (for air, specific heat at constant pressure, cp = 1040 J/ kg K and ratio of specific heats = 1.4) is 10. If the inlet temperature to the turbine is 1200 K and the isentropic efficiency is 0.9, the gas temperature at turbine exit is ________K.

A. 679.4 K
B. 675.4 K
C. 689.4 K
D. 669.4 K
Answer» B. 675.4 K


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