" A simple Brayton cycle has a pressure ratio of 5 and a maximum temperature of 900 K. Air enters the compressor at 100 kPa, 300 K. Based upon cold-air standard analysis assumptions, the back-work ratio of this cycle is:"

" A simple Brayton cycle has a pressure ratio of 5 and a maximum tempe

1.	" A simple Brayton cycle has a pressure ratio of 5 and a maximum temperature of 900 K. Air enters the compressor at 100 kPa, 300 K. Based upon cold-air standard analysis assumptions, the back-work ratio of this cycle is:"
A.	0.23
B.	0.53
C.	0.48
D.	0.36
Answer» C. 0.48