Engineering, 28.10.2019 23:31 katiemh8302
4.71 a full-wave rectifier circuit with a 1-k! load operates from a 120-v (rms) 60-hz household supply through a 6-to-1 transformer having a center-tapped secondary winding. it uses two silicon diodes that can be modeled to have a 0.7-v drop for all currents. what is the peak voltage of the rectified output? for what fraction of a cycle does each diode conduct? what is the average output voltage? what is the average current in the load?
Answers: 1
Engineering, 04.07.2019 18:10
The mass flow rate of the fluid remains constant in all steady flow process. a)- true b)- false
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Engineering, 04.07.2019 18:10
Refrigerant 134a enters an insulated compressor operating at steady state as saturated vapor at -26°c with a volumetric flow rate of 0.18 m3/s. refrigerant exits at 9 bar, 70°c. changes in kinetic and potential energy from inlet to exit can be ignored. determine the volumetric flow rate at the exit, in m3/s, and the compressor power, in kw.
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Engineering, 04.07.2019 18:10
Journeyman training is usually related (clo2) a)-to specific tasks b)-to cost analysis of maintenance task c)-to control process to ensure quality d)-to installation of machinery
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Engineering, 04.07.2019 18:10
What are the two (02) benefits, which may result from a successful implementation of preventive maintenance (pm) program in an organization? (clo3)a)- lean manufacturing b)-overlapping responsibilities c)-the planner is not qualified d)-accurate contractor information e)-reduction in equipment redundancies f)-accurate stores information
Answers: 3
4.71 a full-wave rectifier circuit with a 1-k! load operates from a 120-v (rms) 60-hz household sup...
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