Electric Drives Slip Energy Recovery Online Exam Quiz
Electric Drives Slip Energy Recovery GK Quiz. Question and Answers related to Electric Drives Slip Energy Recovery. MCQ (Multiple Choice Questions with answers about Electric Drives Slip Energy Recovery
The slope of the V-I curve is 9.1°. Calculate the value of resistance. Assume the relationship between voltage and current is a straight line.
Options
A : .16 ?
B : .26 ?
C : .25 ?
D : .44 ?
Calculate the average value of the sinusoidal waveform x(t)=848sin(1.65?t+2?÷0.68).
Options
A : 0
B : 78 V
C : 15 V
D : 85 V
Calculate the total heat dissipated in a resistor of 44 ? when 0 A current flows through it.
Options
A : 0 W
B : 2 W
C : 1.5 W
D : .3 W
If induction motor air gap power is 1.8 KW and gross developed power is .1 KW, then rotor ohmic loss will be _________ KW.
Options
A : 1.7
B : 2.7
C : 3.7
D : 4.7
R.M.S value of the periodic square waveform of amplitude 72 V.
Options
A : 72 V
B : 56 V
C : 12 V
D : 33 V
Calculate the time period of the waveform v(t)=12sin(8?t+8?÷15)+144sin(2?t+?÷6)+ 445sin(?t+7?÷6).
Options
A : 8 sec
B : 4 sec
C : 7 sec
D : 3 sec
A 2-pole, 3-phase, ______ Hz induction motor is operating at a speed of 550 rpm. The frequency of the rotor current of the motor in Hz is 2.
Options
A : 9.98
B : 9.71
C : 9.12
D : 9.37
The power factor of a squirrel cage induction motor is ___________
Options
A : High at light load only
B : High at heavy loads only
C : Low at the light and heavy loads both
D : Low at rate load only
In the rotor voltage injection method, when an external voltage source is in phase with the main voltage then speed will ___________
Options
A : Increase
B : Decrease
C : Remain unchanged
D : First increases then decrease
In the rotor voltage injection method, when an external voltage source is in opposite phase with the main voltage then speed will ___________
Options
A : Increase
B : Decrease
C : Remain unchanged
D : First increases then decrease
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