DC Motors The rheostatic speed control method is very Economical Suitable for getting speeds above the normal Efficient Unsuitable for rapidly changing loads Economical Suitable for getting speeds above the normal Efficient Unsuitable for rapidly changing loads ANSWER DOWNLOAD EXAMIANS APP
DC Motors When the armature of a D.C. motor rotates, e.m.f. induced is Mutually induced e.m.f. None of these Self-induced e.m.f. Back e.m.f. Mutually induced e.m.f. None of these Self-induced e.m.f. Back e.m.f. ANSWER DOWNLOAD EXAMIANS APP
DC Motors The value of back emf in dc motor is maximum at None of the listed here No load Half full load Full load None of the listed here No load Half full load Full load ANSWER DOWNLOAD EXAMIANS APP
DC Motors The commutating pole winding is connected in Series with the armature Parallel with the armature None of the listed here Series-parallel with the armature Series with the armature Parallel with the armature None of the listed here Series-parallel with the armature ANSWER DOWNLOAD EXAMIANS APP
DC Motors The friction and windage losses in a dc motor depends upon Armature current Flux Field and armature resistance Speed Armature current Flux Field and armature resistance Speed ANSWER DOWNLOAD EXAMIANS APP
DC Motors D.C. series motors are used Where load is constant None of these Where load changes frequently Where constant operating speed is needed Where load is constant None of these Where load changes frequently Where constant operating speed is needed ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS