Electrical Machines The slot edges in a DC machine are made of Mild steel. Fibre. Silicon steel. Cast iron. Mild steel. Fibre. Silicon steel. Cast iron. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Hopkinss test in DC motor is conducted at ? None of these. Low load. No load. Full load. None of these. Low load. No load. Full load. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The rotor speed of an induction motor is given by Ns = 120f / p × ( 1 - s ). None of these Ns = 120f /p × ( 1 - r). Nr = 120f / p × (1-s). Ns = 120f / p × ( 1 - s ). None of these Ns = 120f /p × ( 1 - r). Nr = 120f / p × (1-s). ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The slip of an induction motor during DC rheostatic braking is 2 + s. s. 2 - s. 1 - s. 2 + s. s. 2 - s. 1 - s. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Commutator pitches of duplex and simplex lap windings are respectively 4 and 2 2 and 2 2 and 1 4 ang 1 4 and 2 2 and 2 2 and 1 4 ang 1 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC Shunt Motor having shunt field resistance of 250 Ω and armature resistance of 0.5 Ω is connected to 250 V supply and load current of 21 A. What is the back emf generated ? 240 V. 210 V 230 V. 150 V. 240 V. 210 V 230 V. 150 V. ANSWER DOWNLOAD EXAMIANS APP
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