DC Motors Which of the following law can be used to determine the direction of rotation of dc motor? Lenz's law Faraday's law Coloumb's law Fleming's left hand rule Lenz's law Faraday's law Coloumb's law Fleming's left hand rule ANSWER DOWNLOAD EXAMIANS APP
DC Motors The starting resistance of a DC motor is generally 1000 Ω Infinitely large Around 500 Ω Low 1000 Ω Infinitely large Around 500 Ω Low ANSWER DOWNLOAD EXAMIANS APP
DC Motors If the terminals of armature of D.C. motor are interchanged, this action will offer following kind of braking Dynamic braking None of these Plugging Regenerative Dynamic braking None of these Plugging Regenerative ANSWER DOWNLOAD EXAMIANS APP
DC Motors No load speed of which of the following motor will be highest? Differentially compounded motor Cummulative compounded motor Shunt motor Series motor Differentially compounded motor Cummulative compounded motor Shunt motor Series motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors Usually wide and sensitive speed control is desired in case of Centrifugal pumps Colliery winders Elevators Steel rolling mills Centrifugal pumps Colliery winders Elevators Steel rolling mills 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% 4.76% 8.85% 6.77% 2.22% 4.76% 8.85% 6.77% ANSWER DOWNLOAD EXAMIANS APP
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