Electrical Machines Slip test is performed to determine All of these direct axis reactance and quadrature axis reactance slip positive sequence reactance and negative sequence reactance All of these direct axis reactance and quadrature axis reactance slip positive sequence reactance and negative sequence reactance ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The type of DC generator used for arc welding purpose is a series generator differentially compounded generator cumulatively compounded generator shunt generator series generator differentially compounded generator cumulatively compounded generator shunt generator ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3 - Φ, 4 pole IM is supplied from a 50 Hz source. Calculate rotor frequency when rotor runs 600 rpm? 30 Hz. 20 Hz. Can be determined. 35 Hz. 30 Hz. 20 Hz. Can be determined. 35 Hz. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The main disadvantage(s) of the ward-Leonard system is/are high maintenance cost. high initial cost. poor overall efficiency. all of above. high maintenance cost. high initial cost. poor overall efficiency. all of above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The speed of a motor falls from 1100 r.p.m at no-load to 1050 r.p.m at rated load. The speed regulation of motor is 2.57 %. 4.76%. 3.76%. 2.56 %. 2.57 %. 4.76%. 3.76%. 2.56 %. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The counter (or back) emf in a dc machine is 1. the same as generated emf in a dc motor 2. proportional to field flux and armature speed 3. not the same as generated emf in a dc motor 4.inversely proportional to field flux 5. proportional to number of armature conductors 6. constant from no load to full load From these, the correct answer is 1, 2, 5 3, 4, 5 2, 3, 6 2, 4, 5, 6 1, 2, 5 3, 4, 5 2, 3, 6 2, 4, 5, 6 ANSWER DOWNLOAD EXAMIANS APP
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