Welcome to your DC Machines MCQ practice assessment.
Click NEXT to start.
Laminated yoke in dc motor can reduce
The commutator pitch for simplex wave winding is equal to
For a linear electromagnetic circuit,the following statement is true
In a dc motor the windage loss is proportional to
Which of the following is not a part of dc machine?
A rotating electrical machine having its self inductance of both the stator and the rotor winding, independent of rotor position will definitely not developed
For a 4-pole machine wave winding is impossible with — armature conductors
In a dc machine armature windind,the number of commutator segments is equal to the number of armature
Width of a carbon brush should be equal to
The commutator of a dc motor serves the purpose of
In electromechanical energy conversion devices(e.g. generators and motors),a small air gap is left between the stator and the rotor ignored to
The developed electromagnetic force and/or torqe in electromechanical energy conversion system act in a direction that tends
Wave winding is composed of
Wave winding is employed in a dc machine of
Minimum number of coils for 400v,6-poles lap connected dc machine for a maximum voltage of 15v between adjacent commutator segments should be
Reluctance torque in rotating machines is present,when
The teeth in the armature of a dc machine are something skewed.This is done to reduce
Armature of a dc machine is made of
Which of the following are the variable losses in a rotating machine?
The number of parallel paths for a 4-pole duplex lap winding will be
Leave a Reply
You must be logged in to post a comment.