Online TestChoppers Objective Questions – 1 Choppers Objective Questions Power Electronics Objective Questions & Answers 0% In the ___________ type of chopper, two stage conversions takes place. None of the mentioned AC link DC link AC-DC Correct!Wrong!- Continue >> What is the duty cycle of a chopper ? T/Ton Ton/T Toff x Ton Ton/Toff Correct!Wrong!- Continue >> A chopper is a DC transformer AC to DC converter Time ratio controller High speed semiconductor switch Correct!Wrong!- Continue >> A chopper may be thought as a DC equivalent of an AC transformer Inverter with DC input DC equivalent of an induction motor Diode rectifier Correct!Wrong!- Continue >> The values of duty cycle (α) lies between 0>α>-1 0<α<1 0<=α<=1 1<α<100 Correct!Wrong!- Continue >> Find the output voltage expression for a step down chopper with Vs as the input voltage and α as the duty cycle. Vo = 2Vs/απ Vo = Vs2/α Vo = Vs/α Vo = Vs x α Correct!Wrong!- Continue >> Which device can be used in a chopper circuit? GTO All of the mentioned BJT MOSFET Correct!Wrong!- Continue >> The load voltage of a chopper can be controlled by varying the duty cycle firing angle reactor position extinction angle Correct!Wrong!- Continue >> Choppers converter DC to AC DC to DC AC to AC AC to DC Correct!Wrong!- Continue >> If T is the time period for a chopper circuit and α is its duty cycle, then the chopping frequency is α/Ton Toff/α α/Toff Ton/α Correct!Wrong!- Continue >> Share the quiz to show your results ! Facebook Facebook Just tell us who you are to view your results ! Show my results >> Choppers-1 I got %%score%% of %%total%% right ↺ PLAY AGAIN ! Share With Your Friends Facebook Twitter LinkedIn Pinterest Email WhatsApp
