DC Machines
Curriculum and historical examination lineage for DC Machines under Unit 3 (Machines and Drives) of Electrical and Electronics Engineering (21EEB101J) at SRMIST.
Historical appearance distribution across SRMIST Formative Tests (CT1, CT2) and University End Semester examinations.
Factual marks weightage of questions asked on this topic in historical examinations.
Question templates that recur across multiple examination cycles with similar conceptual stems.
“With a neat diagram, explain the construction and operation of the DC generator. List its...”
“The function of a commutator in DC generator is to (A) Convert DC to DC (B) Convert AC to DC (C)...”
“The brushes in DC machine are made of (A) Lamination sheets (B) Carbon (C) Copper (D) Aluminium”
“Write the working principle of DC motor”
“Write the working principle of DC generator”
Representative historical questions extracted directly from SRMIST examination papers.
The function of brushes in a DC generator is _______ (A) To increase the voltage (B) To increase the current (C) To bring the power developed to the load (D) To provide flux...
The function of a commutator in DC generator is to (A) Convert DC to DC (B) Convert AC to DC (C) Convert AC to AC (D) Convert DC to AC
A DC generator is rotated at $50$ revolutions/sec. How many times does the dc output voltage reach maximum in each second? (A) $50$ (B) $100$ (C) $150$ (D) $3000$
The material used for the yoke of a DC machine is to provide a (A) Current path (B) Flux path (C) Mechanical support (D) Conversion from AC to DC
_____ of the DC generator is in the form of a laminated slotted drum. A) Brushes B) Armature C) Split rings D) Pole shoe
Examinations where questions for DC Machines have appeared.
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