Electrical Machines The maximum power developed in cylindrical synchronous machine is occurs at a load angle of Greater than 90o. 0o. less than 90o. 90o. Greater than 90o. 0o. less than 90o. 90o. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3-phase, 50Hz, 4 pole induction motor is running at 1440 rpm and rotor input power is 2KW. Find the rotor output power? 1820W 2000W 1920W 1450W 1820W 2000W 1920W 1450W ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Maximum allowable moisture content of power transformer insulating oil is generally taken as 25 ppm. 35 ppm. 20 ppm. 45 ppm. 25 ppm. 35 ppm. 20 ppm. 45 ppm. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which type of bearing is provided in small induction motors to support the rotor shaft? None of these Ball bearings. Cast iron bearings. Bush bearings. None of these Ball bearings. Cast iron bearings. Bush bearings. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the armature electric current is increased to double its previous value, and the time of commutation is halved, how will the reactance voltage vary? It will remain the same. It will be halved. It will becomes four times. It will be doubled. It will remain the same. It will be halved. It will becomes four times. It will be doubled. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two generators operating in parallel with rating 50MW and 100MW respectively. Both their respective governor settings are identical as 4%, consider same no load frequency. How will the machine share a common load of 100 MW 33.33 MW and 66.67 MW respectively 50 MW and 50 MW respectively any of the above 66.67 MW and 33.33 MW respectively 33.33 MW and 66.67 MW respectively 50 MW and 50 MW respectively any of the above 66.67 MW and 33.33 MW respectively ANSWER DOWNLOAD EXAMIANS APP
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