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