DC Motors Which of the following tests will be suitable for testing two similar D.C. series motors of large capacity? Hopkinson's test Field test Swinburne's test Brake test Hopkinson's test Field test Swinburne's test Brake test ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following motors is most suitable for signalling devices and many kinds of timers ? C. series motor Induction motor Reluctance motor C. shunt motor C. series motor Induction motor Reluctance motor C. shunt motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which motor should be used for centrifugal pumps? Series motor Shunt motor None of the listed here Either series or shunt Series motor Shunt motor None of the listed here Either series or shunt ANSWER DOWNLOAD EXAMIANS APP
DC Motors The main disadvantage of the Ward-Leonard control method is Low efficiency at high loads All of these High maintenance cost High initial cost Low efficiency at high loads All of these High maintenance cost High initial cost ANSWER DOWNLOAD EXAMIANS APP
DC Motors A dc series motor is that which Has its field winding consisting of thick wire and less turns Can be started easily without load Has a poor torque Has almost constant speed Has its field winding consisting of thick wire and less turns Can be started easily without load Has a poor torque Has almost constant speed ANSWER DOWNLOAD EXAMIANS APP
DC Motors D.C. generators are normally designed for maximum efficiency around All of these Rated voltage Rated r.p.m. Full load All of these Rated voltage Rated r.p.m. Full load ANSWER DOWNLOAD EXAMIANS APP
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