DC Motors The main disadvantage of the Ward-Leonard control method is Low efficiency at high loads High initial cost High maintenance cost All of these Low efficiency at high loads High initial cost High maintenance cost All of these ANSWER DOWNLOAD EXAMIANS APP
DC Motors The compensating winding is connected in None of the listed here Parallel with armature Series-parallel with armature Series with armature None of the listed here Parallel with armature Series-parallel with armature Series with armature ANSWER DOWNLOAD EXAMIANS APP
DC Motors A dc motor is still used in industrial applications because it Provides fine speed control Is cheap Is simple in construction None of the listed here Provides fine speed control Is cheap Is simple in construction None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Motors Usually wide and sensitive speed control is desired in case of Elevators Steel rolling mills Colliery winders Centrifugal pumps Elevators Steel rolling mills Colliery winders Centrifugal pumps ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a dc motor if the back emf is absent Motor will run at very slow speed Motor will burn Motor will run at very high speed Motor will not run at all Motor will run at very slow speed Motor will burn Motor will run at very high speed Motor will not run at all ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following motors is most suitable for signalling devices and many kinds of timers ? Reluctance motor C. series motor C. shunt motor Induction motor Reluctance motor C. series motor C. shunt motor Induction motor ANSWER DOWNLOAD EXAMIANS APP
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