Electrical Machines Compensating windings is placed in which part of a D.C motor? On yoke in the inter pole gap. On yoke in the pole faces. None of these On armature. On yoke in the inter pole gap. On yoke in the pole faces. None of these On armature. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a 6 pole DC machine, 90 mechanical degrees correspond to which of the following electrical degree? 180. 45. 270. 30. 180. 45. 270. 30. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The rotor speed of an induction motor is given by None of these Nr = 120f / p × (1-s). Ns = 120f /p × ( 1 - r). Ns = 120f / p × ( 1 - s ). None of these Nr = 120f / p × (1-s). Ns = 120f /p × ( 1 - r). Ns = 120f / p × ( 1 - s ). ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the temperature of armature resistance is increased, the speed of a series motor would decrease. None of above. not change. increase. decrease. None of above. not change. increase. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Maximum power developed in a cylindrical synchronous machine depends on load angle synchronous reactance excitation both 1and 2 load angle synchronous reactance excitation both 1and 2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole lap wound dc generator has 4 brushes, if one of the brush is damaged, what will be the change in V, I and P ratings V/2, I/2 and P/4 V, I/2 and P/2 V, I and P V/2, I and P/2 V/2, I/2 and P/4 V, I/2 and P/2 V, I and P V/2, I and P/2 ANSWER DOWNLOAD EXAMIANS APP
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