DC Motors MCQs
Practice free DC Motors multiple-choice questions with instant answer feedback and step-by-step solutions. Click an option to check yourself, reveal the full explanation, and work through all 313 questions — no login required.
Question 289easy
D.C. generator generally preferred for charging automobiles batteries is
Question 290easy
1n a D.C. generator the number of mechanical degrees and electrical degrees will be the same when
Question 291easy
The e.m.E generated in a D.C. generator is directly proportional to
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Question 292easy
In a D.C. generator in order to reduce sparking at brushes, the self-induced e.m.f. in the coil is neutralised by all of the following except
Question 293easy
1n D.C. generator on no-load, the air gap flux distribution in space is
Question 294easy
A shunt generator running at 1000 r.p.m. has generated e.m.f. as 200 V. If the speed increases to 1200 r.p.m., the generated e.m.E will be nearly
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Question 295easy
I1 a D.C. generator fails to build up the probable cause could not be
Question 297easy
1n a D.C. generator the critical resistance refers to the resistance of