
quiz 2 DJM40103
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Other
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University
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Practice Problem
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Medium
Mohd Azmi Ibrahim
Used 13+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Choppers converter
AC to Dc
AC TO AC
DC TO DC
DC TO AC
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which device can be used in a chopper circuit?
MOSFET
BJT
GTO
ALL OF THE MENTIONED
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the duty cycle of a chopper ?
Ton/Toff
T/Ton
Ton/T
Toff x Ton
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The load voltage of a chopper can be controlled by varying the
duty cycle
firing angle
reactor position
extinction angle
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a step down chopper, if Vs = 100 V and the chopper is operated at a duty cycle of 75 %. Find the output voltage.
100 V
75 V
25 V
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Find the output voltage for a step-up chopper when it is operated at a duty cycle of 50 % and Vs = 240 V.
240 V
480 V
560 V
120 V
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A step - down choppers can be used in
Electric traction
Machine tools
Electric vehicles
All of these
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