Electric Drives Quiz Online Exam Quiz
Electric Drives Quiz GK Quiz. Question and Answers related to Electric Drives Quiz. MCQ (Multiple Choice Questions with answers about Electric Drives Quiz
For successful commutation circuit turn-off time ______ device turn-off time.
Options
A : <
B : >
C : =
D : ~
Holding current of the SCR is ___________
Options
A : > than latching current
B : < than latching current
C : = to latching current
D : ? than latching current
Calculate the value of Vpeak if crest factor=47 and Vr.m.s=6 V.
Options
A : 282 V
B : 300 V
C : 290 V
D : 286 V
Calculate the value of safety factor using the data: tc=12 msec, tq=6 msec.
Options
A : 4
B : 2
C : 3
D : 6
If holding current of an SCR is 6 mA then its latching current should be ___________
Options
A : 4 mA
B : 5 mA
C : 12 mA
D : 6 mA
If latching current of an SCR is 10 mA then its holding current should be ____________
Options
A : 5 mA
B : 7 mA
C : 8 mA
D : 4 mA
Which of the following is used to protect SCR from d(v)/d(t) condition?
Options
A : Capacitor
B : Fuse
C : Snubber circuit
D : Inductor
Which of the following is used to protect SCR from overcurrent?
Options
A : Heat sink
B : Fuse
C : Snubber circuit
D : Zener diode
Which of the following is used to protect SCR from thermal conditions?
Options
A : Heat sink
B : Voltage clamping device
C : Zener diode
D : Snubber circuit
Which of the following is used to protect SCR from d(i)/d(t) condition?
Options
A : Inductor
B : Capacitor
C : Heat sink
D : Fuse
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