The air-gap flux density waveform has decreased flux under one pole ti – McqOptions

MCQOPTIONS

1.	The air-gap flux density waveform has decreased flux under one pole tip and measured under the other is due to __________
A.	cross magnetization
B.	magnetization
C.	demagnetization
D.	saturation of iron magnetic circuit
Answer» B. magnetization

Discussion

No Comment Found

Related MCQs

A dc shunt motor is running at 1000 rpm at the rated load torque. If few of the field windings get shot circuited then the __________
A dc shunt motor is running at 1000 rpm at the rated load torque. If we reverse the supply terminals, then the __________
A dc shunt motor is running at 1000 rpm at the rated load torque. If we reverse the filed winding terminals, then the __________
A dc shunt motor is connected to the source through 3-point starter. If the field id kept open and starter handle is moved from off to on position, then __________
The correct positioning of the windings in the below diagrams is?
Compensating winding has an advantage of __________
Compensating windings are embedded in pole faces and having the same polarity as that of adjoining armature winding.
A 100KW, 250 V, 400 A, a long shunt compound generator has an armature resistance of 0.025 ohms. There are 1000 shunt fields turns per pole and 3 series field turns per pole. The series field is connected in a such a fashion that positive armature current produces direct-axis MMF which adds to that of the shunt field. Compute the gross MMF at the rated terminal current when shunt field current is 4.7A and speed is 1150 rpm.
The brushes of a dc motor, are shifted by 5 , from the main field axis, then __________
Which method needed to limit cross-magnetizing effect?