Electric Drives Basic Relations Online Exam Quiz
Electric Drives Basic Relations GK Quiz. Question and Answers related to Electric Drives Basic Relations. MCQ (Multiple Choice Questions with answers about Electric Drives Basic Relations
The slope of the V-I curve is 26°. Calculate the value of resistance. Assume the relationship between voltage and current is a straight line.
Options
A : .487 ?
B : .482 ?
C : .483 ?
D : .448 ?
Calculate the value of the frequency if the signal completes half of the cycle in 70 sec. Assume signal is periodic.
Options
A : 0.00714 Hz
B : 0.00456 Hz
C : 0.00845 Hz
D : 0.00145 Hz
The generated e.m.f from 20-pole armature having 800 conductors driven at 30 rev/sec having flux per pole as 60 mWb, with 16 parallel paths is ___________
Options
A : 1900 V
B : 1840 V
C : 1700 V
D : 1800 V
Calculate the mass of the ball having a moment of inertia 4.5 kgm2 and radius of 14 cm.
Options
A : 229.59 kg
B : 228.56 kg
C : 228.54 kg
D : 227.52 kg
For large DC machines, the yoke is usually made of which material?
Options
A : Cast steel
B : Cast iron
C : Iron
D : Cast steel or cast iron
Swinburne’s test can be conducted on ___________
Options
A : Series motor
B : Shunt motor
C : Compound motor
D : Shunt and compound motor
The unit of active power is Watt.
Options
A : True
B : False
C :
D :
The field control method is suitable for constant torque drives.
Options
A : True
B : False
C :
D :
What is the unit of the intensity?
Options
A : Watt/m2
B : Watt/m
C : Watt/m4
D : Watt/m3
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