An air standard dual cycle has a temperature and pressure at the beginning of compression of 60 F and 14 psi respectively. The specific heat addition to the cycle is 800 Btu/lbm. After the end of the constant volume part of the heat addition process the pressure is found to be 1200 psi. The compression ratio of this process is 15. Determine: 1. The specific net work of the cycle 2. The specific heat rejection of the cycle 3. The cut off ratio 4. The thermal efficiency of the cycle