Q. In voltage commutation, in chopper circuit we use _____________

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Q. Which of the following is not the method of auxiliary commutation?

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Q. What is the formula for step up chopper?

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Q. How output voltage of chopper can be varied?

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Q. The average value of chopper output waveform is given by _____________

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Q. Which of the following correctly suits with chopper?

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Q. Which of the following statement is not true regarding to DC chopper?

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Q. Which of the following method is employed when regenerative braking is necessary?

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Q. Which of the following method is adopted for controlling a DC motor?

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Q. Three phase converters are employed for _______________

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Q. Which converter/s can be used for DC series motor control?

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Q. Dual converter operates in _________________

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Q. Full-converter can be used in DC motor for regenerative braking in ______________

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Q. How many thyristors are required for full converter?

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Q. How many quadrants does full-converter work?

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Q. Which of the following is the effect of non-uniform armature current?

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Q. When armature current becomes discontinuous?

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Q. How many thyristors does we need in semi-converter?

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Q. Semi-converters can’t be used when regeneration is required.

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Q. How many thyristors does we need in half wave converter?

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