DC Motors Usually wide and sensitive speed control is desired in case of Colliery winders Steel rolling mills Elevators Centrifugal pumps Colliery winders Steel rolling mills Elevators Centrifugal pumps ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which one of the following is not the function of pole shoes in a D.C. machine? To reduce eddy current loss To spread out flux for better uniformity To reduce the reluctance of the magnetic path To support the field coils To reduce eddy current loss To spread out flux for better uniformity To reduce the reluctance of the magnetic path To support the field coils ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following tests will be suitable for testing two similar D.C. series motors of large capacity? Swinburne's test Field test Brake test Hopkinson's test Swinburne's test Field test Brake test Hopkinson's test 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 A three point starter is considered suitable for Shunt motors Shunt, compound and series motors Shunt as well as compound motors All D.C. motors Shunt motors Shunt, compound and series motors Shunt as well as compound motors All D.C. motors ANSWER DOWNLOAD EXAMIANS APP