Electrical Machines Which of the following represents the pitch factor? Cos α Cos α² sin (α/2) Cos (α/2) Cos α Cos α² sin (α/2) Cos (α/2) ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In most condition which frame of motor will be preferred? Drip proof. Open type. Splash proof. Totally enclosed fan coiled. Drip proof. Open type. Splash proof. Totally enclosed fan coiled. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC machine torque depends on which of the following? speed armature current (I) both A and B flux (φ) speed armature current (I) both A and B flux (φ) ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Commonly used starters of cage motor is DOL. star delta. both A and B. None of these DOL. star delta. both A and B. None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines On switching a DC motor to DC supply mains, it is found to rotate in the direction opposite to that for which it is designed. The DC motor is Cummulative compound. have an equal number of electrons and protons. Series shunt. Differentical compound. Cummulative compound. have an equal number of electrons and protons. Series shunt. Differentical compound. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole wave wound dc motor having flux per pole of 9.56 X 10-3 Wb contains 460 armature conductors. Calculate the back emf produced when it is running at a speed of 1500 rpm. 440 volt. 230 volt. 240 volt. 220 volt. 440 volt. 230 volt. 240 volt. 220 volt. ANSWER DOWNLOAD EXAMIANS APP
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