Electrical Machines The starting resistance of DC motor is generally 1000 ohms. Infinitely large. Low. around 500 ohms. 1000 ohms. Infinitely large. Low. around 500 ohms. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines DC machine windings are either of these full pitched short pitched None of these either of these full pitched short pitched None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Maximum allowable acidity level of power transformer insulating oil is generally taken as 0.3 mg of KOH / gm. 1 mg of KOH / gm. 0.5 mg of KOH / gm. 2 mg of KOH / gm. 0.3 mg of KOH / gm. 1 mg of KOH / gm. 0.5 mg of KOH / gm. 2 mg of KOH / gm. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A differentially compound motor under high-over-load conditions will behave like a / an series motor. shunt motor. cummulative compound motor. AC synchronous motor. series motor. shunt motor. cummulative compound motor. AC synchronous motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Under which of the following conditions is a dc motor provided with compensating winding used ? 1. Wide range of speed control above normal 2. Wide range of steady load variation with no speed control 3.Wide range of rapid variation in load Select the correct answer using the codes given below : Codes : 1 and 2 1 and 3 1, 2 and 3 2 and 3 1 and 2 1 and 3 1, 2 and 3 2 and 3 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? 20 Hz. Can be determined. 35 Hz. 30 Hz. 20 Hz. Can be determined. 35 Hz. 30 Hz. ANSWER DOWNLOAD EXAMIANS APP
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