Electrical Machines In a dc machine 72 number of coils are used. Find the number of commutator segments required? 72 37 74 36 72 37 74 36 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In an alternator, voltage drops occurs in armature resistance and leakage reactance. armature resistance only. armature resistance, leakage reactance and armature reaction. armature resistance, leakage reactance, armature reaction and earth connection. armature resistance and leakage reactance. armature resistance only. armature resistance, leakage reactance and armature reaction. armature resistance, leakage reactance, armature reaction and earth connection. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature mmf in a dc machine is 1. stationary with respect to field poles 2. stationary with respect to armature 3. rotating with respect to field poles 4. rotating with respect to armature From these, the correct answer is 2, 4 1, 4 2, 3 1, 3 2, 4 1, 4 2, 3 1, 3 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Eddy current loss will depends on Flux density All of these Frequency Thickness Flux density All of these Frequency Thickness ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 2 KVA transformer has iron loss of 150 W and full load copper loss of 250 W. The maximum efficiency of the transformer would occur when the total loss is 300 W 250 W 500 W 400W 300 W 250 W 500 W 400W ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Tappings of a transformer are provided at the phase end of lv side at the phase end of hv side at the neutral side end of hv side at the middle of hv side at the phase end of lv side at the phase end of hv side at the neutral side end of hv side at the middle of hv side ANSWER DOWNLOAD EXAMIANS APP
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