Technician A says that a reaction member keeps a part of the gearset from rotating. Technician B says that a reaction member is always applied by hydraulic pressure. Which technician is correct? A. Technician A. B. Technician B. C. BothTechnician A and B. D. Nether Technician A and B.

Air enters a gas turbine with two stages of compression and two stages of expansion at 100 kpa and 17°c. this system uses a regenerator as well as reheating and intercooling – the intercooler returns the air to the inlet temperature. the pressure ratio across each compressor is 4 ; 300 kj/kg of heat are added to the air in each combustion chamber; and the regenerator operates perfectly while increasing the temperature of the cold air by 20°c. determine the system’s thermal efficiency. assume isentropic operations for all compressor and the turbine stages and use constant specific heats at room temperature. (0.378)