Electrical Machines If an induction machine is run at above the synchronous speed it acts as an induction motor a synchronous motor an induction generator None of these an induction motor a synchronous motor an induction generator None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC cumulatively compounded motor delivers rated load torque at rated speed. If the series field is short-circuited, then the armature current and speed will both decrease increase and decrease respectively decrease and increase respectively both increase both decrease increase and decrease respectively decrease and increase respectively both increase ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A three phase 400 V, 6 pole, 50 Hz, squirrel cage induction motor is running at a slip of 5%. The speed of stator magnetic field with respect to rotor magnetic field and speed of rotor w.r.t stator magnetic field are 1000 rpm, - 50 rpm. zero, 950 rpm. 1000 rpm, 950 rpm. zero , - 50 rpm. 1000 rpm, - 50 rpm. zero, 950 rpm. 1000 rpm, 950 rpm. zero , - 50 rpm. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Hopkinson test is conducted under which of the following condition? full load no load half load any of the above full load no load half load any of the above ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Hopkinss test in DC motor is conducted at ? No load. Full load. Low load. None of these. No load. Full load. Low load. None of these. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The speed of a cumulatively compound DC motor can be controlled by varying Any of above. Armature resistance control. Armature voltage control. Shunt field resistance control. Any of above. Armature resistance control. Armature voltage control. Shunt field resistance control. ANSWER DOWNLOAD EXAMIANS APP
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