Electric Drives Dc Motor Systems Online Exam Quiz
Electric Drives Dc Motor Systems GK Quiz. Question and Answers related to Electric Drives Dc Motor Systems. MCQ (Multiple Choice Questions with answers about Electric Drives Dc Motor Systems
Calculate the value of the fundamental displacement factor for 1-? Full wave bridge rectifier if the firing angle value is 60°.
Options
A : .5
B : .4
C : .2
D : .8
Calculate the value of the Input power factor for 1-? Full wave bridge rectifier if the firing angle value is 45°.
Options
A : .65
B : .64
C : .61
D : .63
Calculate the value of the fundamental displacement factor for 1-? Full wave semi-converter if the firing angle value is 20°.
Options
A : .82
B : .98
C : .74
D : .26
Calculate the displacement factor if the fundamental voltage is 24sin(140?t-240°) and fundamental current is 47sin(140?t-120°).
Options
A : -0.5
B : -0.7
C : 0.9
D : 0.4
Calculate the r.m.s value of the current through the thyristor in case of 1-? Full wave bridge rectifier if the value of the load current is 2 A.
Options
A : 1.414 A
B : 1.214 A
C : 1.347 A
D : 1.657 A
In Half-wave controlled rectifier calculate the average value of the voltage if the supply is 10sin(50t) and firing angle is 30°.
Options
A : 2.32 V
B : 2.97 V
C : 4.26 V
D : 5.64 V
Calculate the conduction angle in purely inductive load if the firing angle is ?÷2.
Options
A : 205°
B : 175°
C : 180°
D : 195°
Calculate the average value of the current through the thyristor in case of 1-? Full wave bridge rectifier if the value of the load current is 42 A.
Options
A : 21 A
B : 12 A
C : 14 A
D : 16 A
Calculate the extinction angle in purely inductive load if the firing angle is ?÷4.
Options
A : 315°
B : 145°
C : 345°
D : 285°
In single phase RLE load, calculate the voltage across the thyristor when current decays to zero using the data: (Vs)r.m.s=220 V, f=40 Hz, R=1 ?, E=90 V, ?=230°.
Options
A : -328.33 V
B : -325.48 V
C : -254.85 V
D : -284.48 V
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