Power Electronics Mcqs


Q.  In the operation and control of both naturally commutated and forced commutated SCR base converter, commutation plays an important role. The converters is / are ___________?

a. AC – DC
b. DC – DC
c. DC – AC
d. All of these


ANSWER: See Answer
 
No explanation is available for this question!
MCQs:  DIAC are specifically designed to trigger______________?
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MCQs:  Voltage commutation circuit can be converted into a current commutation by interchanging the positions of____________?
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MCQs:  In a 3 phase bridge rectifier the ripple frequency is _____________?
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MCQs:  In a load commutated DC – DC chopper, the capacitor has a_____________?
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MCQs:  The sum of all phase current in a star connected primary winding with no neutral connection is equal to___________?
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MCQs:  In current commutated DC-DC choppers, the voltage spike appears across the load when_____________?
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MCQs:  For power output higher than 15 kW, the suitable rectifier is________________?
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MCQs:  In a full wave rectifier, the rectification ratio is approximately equal to____________?
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MCQs:  LISN is a device used to measure conducted emissions. LISN stands for_____________?
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MCQs:  In a single phase full wave rectifier, during blocking state the pea inverse voltage of diode is______________?
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MCQs:  A single phase ac – dc converter is also known as____________?
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MCQs:  The output power of the cascaded amplifier / attenuator system can be determined using___________?
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MCQs:  If the gate voltage of an SCR is removed, then the_______________?
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MCQs:  Anode of an operational SCR is _______________?
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MCQs:  An SCR is made up of silicon because?
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MCQs:  In a silicon controlled rectifier, the load is connected___________?
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MCQs:  AC power in a load can be controlled by using____________?
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MCQs:  Number of PN junction in an SCR is____________?
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MCQs:  The switching function of semiconductor devices can be characterized with___________?
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MCQs:  IGBT stands for___________?
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