1. Technician A says that after testing or servicing the hydraulic system components, always check and refill the master cylinder. Technician B says that after testing or servicing the hydraulic components, always make sure the hydraulic system is free from air. Who is correct? OA. Technician A only OB. Technician B only OC. Both Technician A and B OD. Neither Teglhnician A nor B​

An open feedwater heater operates at steady state with liquid entering at inlet 1 with t? = 40°c and pl = 1 .2 mpa. water vapor att2-200°c and p2 = 1.2 mpa enters at inlet 2. saturated liquid water exits with a pressure of pa 1.2 mpa. neglect heat transfer with the surroundings and all kinetic and potential energy effects, determine the mass flow rate of steam at inlet 2 if the mass flow rate of liquid water at inlet 1 is given as 2 kg/s.