Electric Drives Controlling Speed Using Rotor Resistance 2 Online Exam Quiz
Electric Drives Controlling Speed Using Rotor Resistance 2 GK Quiz. Question and Answers related to Electric Drives Controlling Speed Using Rotor Resistance 2. MCQ (Multiple Choice Questions with answers about Electric Drives Controlling Speed Using Rotor Resistance 2
Calculate the power factor if the power angle is 36.86°.
Options
A : .8
B : .4
C : .6
D : 1
Calculate the value of the duty cycle if the system is on for 1 sec and off for 0 sec.
Options
A : 1
B : .4
C : .1
D : .6
Calculate the reactive power in a 2.2 ? resistor.
Options
A : 1.2 VAR
B : 2.6 VAR
C : 0 VAR
D : 1.9 VAR
Calculate the reactive power in a 7.2545 ? resistor.
Options
A : 1.221 VAR
B : 2.611 VAR
C : 0 VAR
D : 1.997 VAR
The slope of the V-I curve is 180o. Calculate the value of resistance. The graph is parallel to the x-axis.
Options
A : 1.47 ?
B : 1.81 ?
C : 0 ?
D : 4.12 ?
The phase difference between voltage and current in the choke coil.
Options
A : 90°
B : 40°
C : 50°
D : 68°
What is the formula for the maximum active power in the cylindrical rotor synchronous machine? (Eb represents armature emf, Vt represents terminal voltage, ? represents rotor angle, X represents reactance)
Options
A : Eb×Vt×sin?÷X
B : Eb×Vt2÷X
C : Eb2×Vt×sin?÷X
D : Eb×Vt÷X
What is the unit of the distance?
Options
A : m
B : m/s
C : atm/m
D : Volt
Armature reaction is demagnetizing in nature due to a purely capacitive load in the synchronous generator.
Options
A : True
B : False
C :
D :
The unit of oscillating power is VAR.
Options
A : True
B : False
C :
D :
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