DC Motors Which motor should be used for centrifugal pumps? Series motor Either series or shunt Shunt motor None of the listed here Series motor Either series or shunt Shunt motor None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Motors When the speed of dc motor increases, its armature current Remains same Decreases None of the listed here Increases Remains same Decreases None of the listed here Increases ANSWER DOWNLOAD EXAMIANS APP
DC Motors If a D.C. shunt motor is working at no load and if shunt field circuit suddenly opens This will make armature to take heavy current, possibly burning it This will result in excessive speed, possibly destroying armature due to excessive centrifugal stresses Motor will run at very slow speed Nothing will happen to the motor This will make armature to take heavy current, possibly burning it This will result in excessive speed, possibly destroying armature due to excessive centrifugal stresses Motor will run at very slow speed Nothing will happen to the motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors What will happen if the back emf of a dc motor vanishes suddenly? The motor will continue to run The motor will stop The armature may burn The motor will run noisy The motor will continue to run The motor will stop The armature may burn The motor will run noisy ANSWER DOWNLOAD EXAMIANS APP
DC Motors The starting resistance of a DC motor is generally 1000 Ω Around 500 Ω Low Infinitely large 1000 Ω Around 500 Ω Low Infinitely large ANSWER DOWNLOAD EXAMIANS APP
DC Motors The speed of a motor falls from 1100 r.p.m. at no-load to 1050 r.p.m. at rated load. The speed regulation of the motor is 2.22% 6.77% 4.76% 8.85% 2.22% 6.77% 4.76% 8.85% ANSWER DOWNLOAD EXAMIANS APP
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