Electrical Machines Wave winding is prefered for which of the following rating? high current and high voltage low current and low voltage low current and high voltage high current and low voltage high current and high voltage low current and low voltage low current and high voltage high current and low voltage ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines At stand still condition the value of slip is infinite value 1 0 finite value infinite value 1 0 finite value ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Commutator pitches of duplex and simplex lap windings are respectively 2 and 2 4 and 2 4 ang 1 2 and 1 2 and 2 4 and 2 4 ang 1 2 and 1 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the reason for stationary armature essential in alternators above 5 KVA? Collecting of large current is simple. All of these Operating cost is less. Insulation requirement is less. Collecting of large current is simple. All of these Operating cost is less. Insulation requirement is less. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A separately excited DC motor has an armature resistance of 0.5 Ohm. The supply voltage is 250V. Armature current is 20A and the speed of rotation is 1500 rpm. Find the torque developed? Zero 15.6 Nm 16.55 Nm 15.28 Nm Zero 15.6 Nm 16.55 Nm 15.28 Nm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The supply voltage to an induction motor is reduced by 10%. By what percentage, approximately, will the maximum torque decrease? 40% 10% 5% 19% 40% 10% 5% 19% ANSWER DOWNLOAD EXAMIANS APP
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