Electrical Machines In a DC generator in case the brushes are moved so as to bring them in magnetic neutral axis, then, there will be none of above. cross-magnetisation. cross-magnetization as well as demagnetization. demagnetisation. none of above. cross-magnetisation. cross-magnetization as well as demagnetization. demagnetisation. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which type of motors are preferred in lifts? DC series motors. None of these DC compound motors. DC shunt motors. DC series motors. None of these DC compound motors. DC shunt motors. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Find the number of poles required, when the frequency is 50Hz and speed of the motor is 500 rpm? 5 10 12 24 5 10 12 24 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The starting resistance of DC motor is generally Infinitely large. 1000 ohms. around 500 ohms. Low. Infinitely large. 1000 ohms. around 500 ohms. Low. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What will be the maximum power factor of an induction motor for dispersion coefficient of 0.05? 20. 0.05. 1.1. 0.905. 20. 0.05. 1.1. 0.905. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A simple method of increasing the voltage of a DC generator is to increase the number of turns in armature coil. increase the number of turns in field coil. increase the speed of shaft rotation. increase the source frequency. increase the number of turns in armature coil. increase the number of turns in field coil. increase the speed of shaft rotation. increase the source frequency. ANSWER DOWNLOAD EXAMIANS APP
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