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Rectifiers and Converters

Rectifiers and Converters
It is the_______of the transformer on which the magnitude of angle of overlap depends.

leakage reactance
all of the listed here
capacitance
resistance

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Rectifiers and Converters
In phase-shift control method the control is carried out by varying the of grid voltage.

polarity
All of the listed here
magnitude
phase

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Rectifiers and Converters
In a three-phase mercury arc rectifiers each anode conducts for

One-fourth of a cycle
One-half a cycle
One-third of a cycle
Two-third of a cycle

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Rectifiers and Converters
Which of the following mercury arc rectifier will deliver least undulating current?

Single-phase
Six-phase
Two-phase
Three-phase

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Rectifiers and Converters
Selenium rectifier can be operated at temperatures as high as

40°C
75°C
25°C
60°C

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Rectifiers and Converters
Which of the following is reversible in action?

Motor generator set
All of the listed here
Motor converter
Rotary converter

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