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 3.76%. 2.57 %. 2.56 %. 4.76%. 3.76%. 2.57 %. 2.56 %. 4.76%. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A single phase transformer has specifications as 250 KVA, 11000 V/415 V, 50 Hz. What are the values of primary and secondary currents? primary = 11.4 A, secondary = 301 A primary = 22.7 A, secondary = 602.4 A primary = 602 A, secondary = 22.7 A primary = 301 A, secondary = 22.7 A primary = 11.4 A, secondary = 301 A primary = 22.7 A, secondary = 602.4 A primary = 602 A, secondary = 22.7 A primary = 301 A, secondary = 22.7 A ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Hysteresis loss is proportional to f. f2. f3. f1.5. f. f2. f3. f1.5. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The squirrel cage induction motors are provided with blades in order to eliminate noise. facilitate cooling of rotor. balance the rotor dynamically. none of these. eliminate noise. facilitate cooling of rotor. balance the rotor dynamically. none of these. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The main purpose of providing tertiary winding in a three phase transformer is to carry extra load. None of these to suppress harmonic and unbalance in voltage. to interconnect three voltage systems. to carry extra load. None of these to suppress harmonic and unbalance in voltage. to interconnect three voltage systems. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In double cage induction motor, the outer cage offers high resistance and low reactance. high resistance and high reactance. low resistance and high reactance. low resistance and low reactance. high resistance and low reactance. high resistance and high reactance. low resistance and high reactance. low resistance and low reactance. ANSWER DOWNLOAD EXAMIANS APP
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