Electrical Machines Commonly used starters of cage motor is both A and B. star delta. DOL. None of these both A and B. star delta. DOL. None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The speed regulation of a DC motor is given as NnL/NfL. (NfL − NnL)/NnL. (NnL − NfL)/NfL. NnL − NfL. NnL/NfL. (NfL − NnL)/NnL. (NnL − NfL)/NfL. NnL − NfL. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following represents the commutator pitch? The distance between the staring of first coil and its next successive coil Number of conductors spanned by one coil at the back end of the armature. Number of commutator segments between two successive coils. Number of conductors spanned by one coil at the front end of the armature. The distance between the staring of first coil and its next successive coil Number of conductors spanned by one coil at the back end of the armature. Number of commutator segments between two successive coils. Number of conductors spanned by one coil at the front end of the armature. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC series motor the speed is ______________ proportional to the armature current. has no relation. directly. inversely. none of these. has no relation. directly. inversely. none of these. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The 3 - Φ induction motors are, by a very considerable margin, the most widely used AC motors as they are capable of operation under range of leading and lagging pf. these are cheaper in cost, simple and rugged in construction. they have very good speed regulation. they have maximum efficiency and maximum starting torque. they are capable of operation under range of leading and lagging pf. these are cheaper in cost, simple and rugged in construction. they have very good speed regulation. they have maximum efficiency and maximum starting torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When a short circuit test on a transformer is performed at 25 V, 50 Hz, the drawn current is I1. If the test is performed by 25 V and 25 Hz and power drawn current is I2, then I1 < I2 I1 > I2 I1 = I2 None of these I1 < I2 I1 > I2 I1 = I2 None of these ANSWER DOWNLOAD EXAMIANS APP
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