Electrical Machines The direction of rotation of conductor of a DC motor can be determined by Fleming's right hand rule. Lenz's law. Ampere law. Fleming's left hand rule. Fleming's right hand rule. Lenz's law. Ampere law. Fleming's left hand rule. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Tappings of a transformer are provided at the neutral side end of hv side at the middle of hv side at the phase end of lv side at the phase end of hv side at the neutral side end of hv side at the middle of hv side at the phase end of lv side at the phase end of hv side ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Voltage regulation can be determined by which of the following? ZPF method. Synchronous impedance method. All of these MMf method. ZPF method. Synchronous impedance method. All of these MMf method. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The use of double squirrel cage winding on the rotor provides higher efficiency. a large starting torque. low noise. reduced starting torque. higher efficiency. a large starting torque. low noise. reduced starting torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC shunt generator builds up 230 V when driven in clockwise direction. In case it is driven in anti clockwise direction, other things remaining unchanged, then the voltage build up is some what more than 230 V 230 V not possible some what less than 230 V some what more than 230 V 230 V not possible some what less than 230 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines To have sparkless commutation, the armature reaction effect in a DC machine is neutralized by compensating winding and commutating poles. shifting the brush axis from GNA to MNA. fixing the brush axis inline with the pole axis. increasing field excitation. compensating winding and commutating poles. shifting the brush axis from GNA to MNA. fixing the brush axis inline with the pole axis. increasing field excitation. ANSWER DOWNLOAD EXAMIANS APP
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