a) Field flux b) Shape of conductors c) Type of slip rings d) Brush material Ans: (a)
a) Armature speed N b) Field flux ΙΈ c) Number of armature conductors d) All of these Ans: (d)
a) Facilitate high speed operation without vibration b) Produce strong magnetic field c) Reduce noise d) Improve cooling Ans: (b)
a) Excessive brush wear b) Winding fault c) Worn out insulation d) None of these Ans: (b)
a) Differentially compounded generator b) A shunt generator c) Cumulatively compounded generator d) A series generator Ans: (c)
a) A differentially compounded generator b) A cumulative compounded generator c) A shunt generator d) A series generator Ans: (a)
a) Same as simplex winding b) Same as duplex winding c) Combined lap and wave windings on a single rotor d) Duplex wave winding on a single rotor Ans: (c)
a) More turns of smaller diameter b) Less turns of larger diameter c) More turns of larger diameter d) Less turns of smaller diameter Ans: (a)
a) Yoke leading end of pole shoe b) Trailing end of pole shoe c) Yoke d) Any of the above Ans: (c)
a) Length of air gap b) Shape of the magnet core c) Flux density used in core and teeth d) All of these Ans: (d)