Electric Drives Ac Motor Systems Online Exam Quiz
Electric Drives Ac Motor Systems GK Quiz. Question and Answers related to Electric Drives Ac Motor Systems. MCQ (Multiple Choice Questions with answers about Electric Drives Ac Motor Systems
Calculate the value of Crest factor if Vpeak=12 V and Vr.m.s=24 V.
Options
A : .2
B : .3
C : .4
D : .5
Calculate the value of the Input power factor for 3-? Fully controlled rectifier if the firing angle value is 70°.
Options
A : .32
B : .38
C : .31
D : .33
Calculate the circuit turn-off time for 3-? Fully controlled rectifier if the firing angle is 110° and supply frequency is 50 Hz.
Options
A : 3.8 msec
B : 5.2 msec
C : 9.3 msec
D : 8.7 msec
Calculate the pulse number if the supply frequency is 2? and the output frequency is ?÷3.
Options
A : 4
B : 2
C : 6
D : 8
Calculate the output voltage of the Buck converter if the supply voltage is 11 V and duty cycle value is .4.
Options
A : 4.4 V
B : 2.2 V
C : 4.8 V
D : 6.4 V
Calculate the output frequency for the two-pulse converter if the supply frequency is 20 Hz.
Options
A : 40 Hz
B : 20 Hz
C : 60 Hz
D : 90 Hz
Calculate the output voltage of the Boost converter if the supply voltage is 8 V and duty cycle value is .6.
Options
A : 40 V
B : 20 V
C : 48 V
D : 51 V
Calculate the value of THD value for 3-? Fully controlled rectifier.
Options
A : 48.43 %
B : 47.25 %
C : 39.26 %
D : 31 %
In 3-? Fully controlled rectifier calculate the average value of the voltage if the supply is 400 V and firing angle is 15°.
Options
A : 521.2 V
B : 522 V
C : 523 V
D : 524 V
In 3-? Semi-controlled rectifier calculate the average value of the voltage if the supply is 440 V and firing angle is 22°.
Options
A : 571.5 V
B : 572.8 V
C : 548.3 V
D : 524.1 V
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