Electrical Machines In the V curve shown in figure below for a synchronous motor, the parameter of Y and X coordinates are, respectively Armature current and torque. Torque and field current. Power factor and field current. Armature current and field current. Armature current and torque. Torque and field current. Power factor and field current. Armature current and field current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following induction motor has maximum speed? 8 pole. 2 pole. 6 pole. 4 pole. 8 pole. 2 pole. 6 pole. 4 pole. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the flux of DC motor approaches zero, its speed will aprroach infinity. approach zero. remain unchanged. between zero and infinity. aprroach infinity. approach zero. remain unchanged. between zero and infinity. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines With the increase in speed of DC motor Back emf increase but line current falls. Back emf falls and line current increase. Both back emf as well as line current increase. Both back emf as well as line current fall. Back emf increase but line current falls. Back emf falls and line current increase. Both back emf as well as line current increase. Both back emf as well as line current fall. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Stability of a synchronous motor ---------- with the increase in excitation. remains unaffected any of the above decreases increases remains unaffected any of the above decreases increases ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC generator in case the brushes are moved so as to bring them in magnetic neutral axis, then, there will be none of above. demagnetisation. cross-magnetisation. cross-magnetization as well as demagnetization. none of above. demagnetisation. cross-magnetisation. cross-magnetization as well as demagnetization. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS