Technician A says a defective vacuum modulator can cause harsh downshifts and harsh or delayed upshifts. Technician B says a defective vacuum modulator can cause soft upshifts and downshifts, as well as overheating and burnt fluid. Who is right

Steam is generated in a boiler of a cogeneration plant at 10 mpa and 450°c at a steady rate of 5 kg/s. in normal operation, steam expands in a turbine to a pressure of 0.5 mpa and is then routed to the process heater, where it supplies the process heat. steam leaves the process heater as a saturated liquid and is pumped to the boiler pressure. in this mode, no steam passes through a condenser, which operates at 20 kpa. (a) determine the power produced in the turbine and the rate at which process heat is supplied in this mode. (b) determine the power produced in the turbine and the rate of process heat supplied if only 60 percent of the steam is routed to the process heater and the remainder is expanded to the condenser pressure. (3.32 mw; 9.69 mw; 4.25 mw; 5.82 mw)

Explain the comparisons between nature and packingtown that appears on pages 81 and 82 answer

Select the correct answer. what does the process of natural selection involve?