Electrical Machines Which type of motors are preferred in lifts? DC compound motors. None of these DC shunt motors. DC series motors. DC compound motors. None of these DC shunt motors. DC series motors. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The basic function of a transformer is to change the power level the level of the voltage the frequency the power factor the power level the level of the voltage the frequency the power factor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The direction of rotation of conductor of a DC motor can be determined by Fleming's left hand rule. Ampere law. Lenz's law. Fleming's right hand rule. Fleming's left hand rule. Ampere law. Lenz's law. Fleming's right hand rule. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If we increase the rotor reactance value, the maximum torque will decrease not changed None of these increase decrease not changed None of these increase ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In synchronous motor, the damper winding is generally used to reduce noise level only. provide starting torque only. prevent hunting and provide the starting torque. reduce the eddy currents. reduce noise level only. provide starting torque only. prevent hunting and provide the starting torque. reduce the eddy currents. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following represents the commutator pitch? 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. 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. ANSWER DOWNLOAD EXAMIANS APP
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