Engineering, 08.07.2020 19:01 lanaiheart7
The half-wave rectifier below is operating at a frequency of 60 Hz, and the rms value of the transformer output voltage is 6.3 V. (a) What is the value of the dc output voltage VO if the diode voltage drop is 1 V? (b) What is the minimum value of C required to maintain the ripple voltage to less than 0.25 V if R = 0.5Ω?
Answers: 3
Engineering, 04.07.2019 18:10
Apump is used to circulate hot water in a home heating system. water enters the well-insulated pump operating at steady state at a rate of 0.42 gal/min. the inlet pressure and temperature are 14.7 lbf/in.2, and 180°f, respectively; at the exit the pressure is 60 lbf/in.2 the pump requires 1/15 hp of power input. water can be modeled as an incompressible substance with constant density of 60.58 lb/ft3 and constant specific heat of 1 btu/lb or. neglecting kinetic and potential energy effects, determine the temperature change, in °r, as the water flows through the pump.
Answers: 1
Engineering, 04.07.2019 18:10
The higher the astm grain-size number, the coarser the grain is. a)-true b)-false
Answers: 3
Engineering, 04.07.2019 18:20
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.
Answers: 3
Engineering, 04.07.2019 19:10
Apressure vessel with an r/t 20 cannot be treated as thin walled vessel. a)-trune b)- false
Answers: 3
The half-wave rectifier below is operating at a frequency of 60 Hz, and the rms value of the transfo...
Mathematics, 15.12.2020 23:20
Mathematics, 15.12.2020 23:20
Mathematics, 15.12.2020 23:20
Mathematics, 15.12.2020 23:20
Mathematics, 15.12.2020 23:20
Mathematics, 15.12.2020 23:20
Spanish, 15.12.2020 23:20
Mathematics, 15.12.2020 23:20
Mathematics, 15.12.2020 23:20
History, 15.12.2020 23:20
English, 15.12.2020 23:20
Chemistry, 15.12.2020 23:20
Social Studies, 15.12.2020 23:20