DC Motors Which of the following tests will be suitable for testing two similar D.C. series motors of large capacity? Swinburne's test Hopkinson's test Brake test Field test Swinburne's test Hopkinson's test Brake test Field test ANSWER DOWNLOAD EXAMIANS APP
DC Motors In the dc motor the iron losses occur in Brushes Field Commutator Armature Brushes Field Commutator Armature ANSWER DOWNLOAD EXAMIANS APP
DC Motors The mechanical power developed in a dc motor is maximum when back emf is equal to _____ the applied voltage. Twice None of the listed here One-third Half Twice None of the listed here One-third Half ANSWER DOWNLOAD EXAMIANS APP
DC Motors A dc series motor is best suited for driving Cranes and hoists None of the listed here Machine tools Shear and punches Cranes and hoists None of the listed here Machine tools Shear and punches ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which one of the following is not the function of pole shoes in a D.C. machine? 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 To reduce eddy current loss ANSWER DOWNLOAD EXAMIANS APP
DC Motors The maximum end play of a motor is about 10 mm 2 mm 6 mm 0.4 mm 10 mm 2 mm 6 mm 0.4 mm ANSWER DOWNLOAD EXAMIANS APP