Electrical Machines In shunt dc motor the direction of rotation of the motor will reversed. When either field terminals are reversed or armature terminals are reversed. only armature terminals are reversed. none of above. only field terminals are changed. either field terminals are reversed or armature terminals are reversed. only armature terminals are reversed. none of above. only field terminals are changed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a transformer OC test is conducted on HV side and SC test is conducted on LV side OC test is conducted on LV side and SC test is conducted on HV side both OC and SC tests are conducted on LV side both Oc and SC tests are conducted on HV side OC test is conducted on HV side and SC test is conducted on LV side OC test is conducted on LV side and SC test is conducted on HV side both OC and SC tests are conducted on LV side both Oc and SC tests are conducted on HV side ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In case of IM the torque is directly proportional to slip2. inversely proportional to √slip. inversely proportional to slip. directly proportional to slip. directly proportional to slip2. inversely proportional to √slip. inversely proportional to slip. directly proportional to slip. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a stepper motor the detente torque means minimum of the static torque with the phase winding unexcited. minimum of the static torque with the phase winding excited. maximum of the static torque with the phase winding excited. maximum of the static torque with the phase winding unexcited. minimum of the static torque with the phase winding unexcited. minimum of the static torque with the phase winding excited. maximum of the static torque with the phase winding excited. maximum of the static torque with the phase winding unexcited. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A three phase induction motor has a synchronous speed of 1500 rpm the machine runs at 1460 rpm at a particular load. The slip at this load is ___________. 1.5 %. 5 %. 30 %. 2.67 %. 1.5 %. 5 %. 30 %. 2.67 %. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An inverted V-curve of synchronous motor shows the variation of power factor and supply voltage during hunting supply voltage and field current at constant excitation power factor and dc excitation at constant load All of these power factor and supply voltage during hunting supply voltage and field current at constant excitation power factor and dc excitation at constant load All of these ANSWER DOWNLOAD EXAMIANS APP
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