Electrical Machines In electric locomotives which of the following motor are used ? Synchronous motor. DC Shunt motor. DC compound motor. DC series motor. Synchronous motor. DC Shunt motor. DC compound motor. DC series motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following represents the commutator pitch? Number of commutator segments between two successive coils. Number of conductors spanned by one coil at the front end of the armature. Number of conductors spanned by one coil at the back end of the armature. The distance between the staring of first coil and its next successive coil Number of commutator segments between two successive coils. Number of conductors spanned by one coil at the front end of the armature. Number of conductors spanned by one coil at the back end of the armature. The distance between the staring of first coil and its next successive coil ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For an ideal transformer the winding should have equal resistance on primary and secondary side no ohmic resistance on either side minimum resistance on primary side and maximum resistance on secondary side maximum resistance on primary side and least resistance on secondary side equal resistance on primary and secondary side no ohmic resistance on either side minimum resistance on primary side and maximum resistance on secondary side maximum resistance on primary side and least resistance on secondary side ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motor is not suitable for frequent starting and stopping? Capacitor run motor Capacitor split phase motor All of these Resistance split phase motor Capacitor run motor Capacitor split phase motor All of these Resistance split phase motor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines At what power factor, the voltage regulation of a transformer can be zero ? Unity power factor. Lagging power factor. Leading power factor. Zero power factor. Unity power factor. Lagging power factor. Leading power factor. Zero power factor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The breakdown torque of a synchronous motor varies as 1/V² V² 1/V applied voltage V 1/V² V² 1/V applied voltage V ANSWER DOWNLOAD EXAMIANS APP
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