DC Generators The coupling field between electrical and mechanical systems of a dc machine is ______ None of the listed here Both electrical and magnetic fields Magnetic field Electric field None of the listed here Both electrical and magnetic fields Magnetic field Electric field ANSWER DOWNLOAD EXAMIANS APP
DC Generators Open circuited armature coil of a D.C. machine is None of these Identified by the scarring of the commutator segment to which open circuited coil is connected Indicated by a spark completely around the commutator Both of the listed here None of these Identified by the scarring of the commutator segment to which open circuited coil is connected Indicated by a spark completely around the commutator Both of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Generators The armature of dc generator is laminated to Provide the bulk Reduce eddy current loss Reduce the bulk Insulate the core Provide the bulk Reduce eddy current loss Reduce the bulk Insulate the core ANSWER DOWNLOAD EXAMIANS APP
DC Generators The armature core of a D.C. generator is usually made of Cast-iron Nonferrous material Copper Silicon steel Cast-iron Nonferrous material Copper Silicon steel ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a practical dc generator, mechanical efficiency is None of the listed here Equal to electrical efficiency Less than electrical efficiency More than electrical efficiency None of the listed here Equal to electrical efficiency Less than electrical efficiency More than electrical efficiency ANSWER DOWNLOAD EXAMIANS APP
DC Generators The no load voltage of a generator is 240 V and rated load voltage is 220 V. The voltage regulation of the generator is 11.3% 9.1% 4.5% 2.8% 11.3% 9.1% 4.5% 2.8% ANSWER DOWNLOAD EXAMIANS APP
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