Question

 In a standard dual air cycle, for a fixed amount of heat supplied and a fixed value of compression ratio, the mean effective pressure                              

a) Shall increases with increases in r_p (pressure ratio for constant volume heating) and decreases in r_c (constant pressure cut-off ratio)

b) Shall increases with decrease in r_p and increases in r_c

c) Shall remain independent of r_p

d) Shall remain independent of r_c