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Rectifiers Quiz | Rectifiers Objective Type Questions and Answers

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Free download in PDF Rectifiers Objective Type Questions and Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams. These short solved questions or quizzes are provided by Gkseries.
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(21) The advantages of mercury arc rectifier is that
[A] It is light in weight and occupies small floor space
[B] It has high efficiency
[C] It has high overload capacity
[D] All of the above
Answer: All of the above
(22) To produce cathode spot in a mercury arc rectified
[A] Anode is heated
[B] Tube is evacuated
[C] An auxiliary electrode is used
[D] Low mercury vapour pressures are used
Answer: An auxiliary electrode is used

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(23) The ionization potential of mercury is approximately
[A] 5.4 V
[B] 8.8 V
[C] 10.4 V
[D] 16.4 V
Answer: 10.4 V
(24) Bridge rectifier is an alternative for
[A] Full wave rectifier
[B] Peak rectifier
[C] Half wave rectifier
[D] None of the mentioned
Answer: Full wave rectifier
(25) Which of the following is true for a bridge rectifier?
[A] The peak inverse voltage or PIV for the bridge rectifier is lower when compared to an identical center tapped rectifier
[B] The output voltage for the center tapped rectifier is lower than the identical bridge rectifier
[C] A transistor of higher number of coil is required for center tapped rectifier than the identical bridge rectifier
[D] All of the mentioned
Answer: All of the mentioned
(26) For a half wave or full wave rectifier the Peak Inverse Voltage of the rectifier is always
[A] Greater than the input voltage
[B] Smaller than the input voltage
[C] Equal to the input voltage
[D] Greater than the input voltage for full wave rectifier and smaller for the half wave rectifier
Answer: Smaller than the input voltage

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