Electrical Machines In a synchronous motor, damper windings are provided on pole faces. rotor shaft. stator frame. None of these pole faces. rotor shaft. stator frame. None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC motors, under trailing pole tips, flux density will_______ ? either increase or decrease None of these decrease increase either increase or decrease None of these decrease increase ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following DC Motor uses 4-point starter? DC series motor. DC compound motor. DC shunt motor with armature resistance. DC shunt motor with field weaking control. DC series motor. DC compound motor. DC shunt motor with armature resistance. DC shunt motor with field weaking control. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two synchronous generators operating in parallel 200 MW and 400 MW respectively. The drooping characteristics of their governors are identical as 4% from no load to full load. Consider the governors operating at 50Hz on no load. What is the operating frequency, if the load is 600 MW? 48.5 Hz 48 Hz 50 Hz 45 HZ 48.5 Hz 48 Hz 50 Hz 45 HZ ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Thin laminations are used in a machine in order to reduce Both 1 and 2 Eddy current losses Hysteresis losses Copper losses Both 1 and 2 Eddy current losses Hysteresis losses Copper losses ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two dc machines A and B, using the same conductor material, have armature circuit resistances of 0.4 Ω and 1.2 Ω respectively. Of the two machines, B is bigger than A for the same current rating both are of the same size for the same current rating A is bigger than B for the same voltage rating A is bigger than B for the same current rating B is bigger than A for the same current rating both are of the same size for the same current rating A is bigger than B for the same voltage rating A is bigger than B for the same current rating ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS