Power Electronics Mcqs


Q.  Double edge modulation eliminates certain harmonics when the reference is a__________?

a. Sine wave
b. Square wave
c. Triangular wave
d. Trapezoidal wave


ANSWER: See Answer
 
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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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MCQs:  Electrical power output in a d.c. generator is equal to____________?
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MCQs:  An ideal switch is___________?
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MCQs:  In ac – dc conversion, when the switch is closed then the sum of voltages around the loop is____________?
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MCQs:  If a shunt motor is started with its field winding open then?
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MCQs:  A rectifier with an external low pass filter is an example of______________?
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MCQs:  The power demand can be estimated approximately by___________?
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