DC Generators Magnetic field in a D.C. generator is produced by None of these Permanent magnets Electromagnets Both (A) and (B) None of these Permanent magnets Electromagnets Both (A) and (B) ANSWER DOWNLOAD EXAMIANS APP
DC Generators The rapid wear of brushes takes place due to All of these Abrasion from dust Rough commutator bars Excessive spring pressure All of these Abrasion from dust Rough commutator bars Excessive spring pressure ANSWER DOWNLOAD EXAMIANS APP
DC Generators The yoke of a dc machine is made of Aluminum Silicon steel Soft iron Cast steel Aluminum Silicon steel Soft iron Cast steel ANSWER DOWNLOAD EXAMIANS APP
DC Generators The terminal voltage of a D.C. shunt generator drops on load because of all of the following reasons except Commutation Armature resistance drop Field weakening due to armature reaction and armature Armature reaction Commutation Armature resistance drop Field weakening due to armature reaction and armature Armature reaction ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a dc generator, armature reaction _____ pole tip. Strengthns the flux at the leading Weaknes the flux at the leading None of the listed here Weaknes the flux at the trailing Strengthns the flux at the leading Weaknes the flux at the leading None of the listed here Weaknes the flux at the trailing ANSWER DOWNLOAD EXAMIANS APP
DC Generators An 8 pole, 250 V, wave wound generator has 400 conductors. If the generator is to be lap wound, the number of conductors required is ______ 800 3200 1600 100 800 3200 1600 100 ANSWER DOWNLOAD EXAMIANS APP
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