Electrical Machines For pure resistive load what is the armature reaction? All of these demagnetization cross magnetization magnetization All of these demagnetization cross magnetization magnetization ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a practical synchronous motor the pull out torque will occur when the torque angle is nearly equal to 75°. 45°. 30°. 0°. 75°. 45°. 30°. 0°. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the field current is reduced to zero the maximum power developed by alternator is 0.9103 KW. 2.73 KW. 1.644 KW. 5.46 KW. 0.9103 KW. 2.73 KW. 1.644 KW. 5.46 KW. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 220 V, DC shunt motor is operating at a speed of 1440 rpm. The armature resistance is 1.0 Ω and armature current is 10 A. of the excitation of the machine is reduced by 10%, the extra resistance to be put in the armature circuit to maintain the same speed and torque will be 2 .1 Ω 1.8 9 Ω 3.1 Ω 1.79 Ω 2 .1 Ω 1.8 9 Ω 3.1 Ω 1.79 Ω ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the function of inter pole in DC generator? Both option B and C. To neutralize the distortion of main field flux due to armature reaction. To serve the economical aspects. To get a superior commutation. Both option B and C. To neutralize the distortion of main field flux due to armature reaction. To serve the economical aspects. To get a superior commutation. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Voltage across the open circuited field termninals of a synchorous machine under slip test is DC. A modulated supply frequency AC voltage with slip frequency envelop. DC of slip frequency. AC of supply frequency. DC. A modulated supply frequency AC voltage with slip frequency envelop. DC of slip frequency. AC of supply frequency. ANSWER DOWNLOAD EXAMIANS APP
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