Electrical Machines Quiz Online Exam Quiz
Electrical Machines Quiz GK Quiz. Question and Answers related to Electrical Machines Quiz. MCQ (Multiple Choice Questions with answers about Electrical Machines Quiz
From the OCC and SCC curves, what does the intercept AB represent?
Options
A : Armature reaction
B : Leakage reactance
C : Armature copper losses
D : Sum of armature reaction and leakage reactance
From the OCC and SCC curves, what does the intercept BC represent?
Options
A : Armature reaction
B : Leakage reactance
C : Armature copper losses
D : Sum of armature reaction and leakage reactance
The internal power factor angle ? is between __________
Options
A : Ef and Ia
B : Ia and field flux
C : Ef and Vt
D : Vt and Ia
The load angle ? is between __________
Options
A : Ef and Ia
B : Ia and field flux
C : Ef and Vt
D : Vt and Ia
Potier method is very accurate due to __________
Options
A : emfs are handled as voltage and mmf as AT
B : emf and mmf are handled as AT
C : emf and mmf are handled as voltage
D : none of the mentioned
If the resultant flux will not be in phase with the resultant mmf Fr. This is due to __________
Options
A : hysteresis effect
B : armature reaction
C : hysteresis effect and armature reaction
D : eddy currents
The short circuit characteristic of alternator is a straight line due to __________
Options
A : no saturation
B : no armature reaction
C : no eddy current
D : all of the mentioned
Phasor diagram below is best describing the __________
Options
A : Open circuit characteristic of alternator
B : Short circuit characteristic of alternator
C : External circuit characteristic of alternator
D : Internal circuit characteristic of alternator
The leakage reactance can be determined with lesser accuracy by using Potier triangle.
Options
A : True
B : False
C :
D :
Electrical Machines Action Commutator more Online Exam Quiz
Electrical Machines Power Factor Control Synchronous Machines
Electrical Machines Power Factor Correction Synchronous Motors
Electrical Machines Power Flow Inductive Impedance
Electrical Machines Principle Operation
Electrical Machines Questions Bank
Electrical Machines Rotating Amplifiers
Electrical Machines Rotor Emf Current Power
Electrical Machines Rotor Frequency