Power Electronics Mcqs

Q.  Bidirectional semiconductor device is___________?

a. Diode
b. BJT
c. SCR
d. TRIAC


ANSWER: See Answer
 
No explanation is available for this question!
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MCQs:  Very large values of modulation index (greater than 3.24) lead to___________?
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MCQs:  Any electrical signal present in a circuit other than the desired signal is known as______________?
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MCQs:  In single phase VSI, the harmonic which is not present is____________?
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MCQs:  In commutation PAC stands for_______?
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MCQs:  Double fourier series analysis of PWM is_____________?
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MCQs:  In the operation and control of both naturally commutated and forced commutated SCR base converter, commutation plays an important role. The converters is / are ___________?
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MCQs:  In bipolar modulation, the carrier is symmetric about zero with amplitude equal to Cm, the PWM output
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MCQs:  In a 3 phase VSI out of eight valid states, the number of valid states that produce zero ac line voltages is/are_________?
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MCQs:  The square wave operation of 3 phase VSI lines contains the harmonics. The amplitudes are____________?
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MCQs:  In a three phase voltage source inverters____________?
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MCQs:  Under harmonic free load voltages, the 3 phase VSI_____________?
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MCQs:  Double edge modulation eliminates certain harmonics when the reference is a__________?
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MCQs:  For similar carrier and modulating signals, the line current used in CSI is__________?
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MCQs:  The carrier which are commonly used in constant – frequency PWM is______________?
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MCQs:  A capacitive load in voltage source inverters generates ________________?
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MCQs:  In a three phase converter, the number of notches per cycle is____________?
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MCQs:  The main objective of static power converters is to____________?
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MCQs:  During the commutation period in 3 phase converter, overlap time is_____________?
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MCQs:  The control method used for PWM dc – dc converter is______________?
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MCQs:  The average value of the output voltage in a step – down dc chopper is given by__________?
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