Electrical Machines Which of the following represents the pitch factor? sin (α/2) Cos (α/2) Cos α Cos α² sin (α/2) Cos (α/2) Cos α Cos α² ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If a transformer has turns ratio K, the primary and secondary current are I1 and I2 respectively and magnetizing current and core loss component of no load current Iμ and Iw respectively, then I1 = KI2 + Iw + Iμ.ok I1 = KI2 + Iw. I1 = KI2 + Iμ. I1 = KI2. I1 = KI2 + Iw + Iμ.ok I1 = KI2 + Iw. I1 = KI2 + Iμ. I1 = KI2. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC machine shape of armature MMF wave is? Triangular and directed towards brush axis. Triangular and directed towards main pole. Peaky in nature. Saddle shape. Triangular and directed towards brush axis. Triangular and directed towards main pole. Peaky in nature. Saddle shape. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The maximum power developed in cylindrical synchronous machine is occurs at a load angle of 0o. less than 90o. Greater than 90o. 90o. 0o. less than 90o. Greater than 90o. 90o. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a transformer to be tested at full load conditions but consuming only losses from the main, we do back to back test OC and SC tests None of these load test back to back test OC and SC tests None of these load test ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The no load and full load speed of DC motor are 1400 rpm and 1200 rpm respectively. What is the percentage speed regulation of the motor ? 16.67%. 15.30%. 18.25%. 14.28%. 16.67%. 15.30%. 18.25%. 14.28%. ANSWER DOWNLOAD EXAMIANS APP
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