Question 5
(a) Define a generator.
(b) List the three parts of a dc machine.
(c) State ;
(i) the part of a generator that enables it to produce a d.c. output;
(ii) three methods of connecting field winding in a d.c. machine.
Observation
The expected answers were;
(a) A generator is a machine that converts mechanical energy into electrical energy.
(b) The three parts of d.c. machine;
(i) Field windings
(ii) Armature
(iii) Commutator and its associated brush gear
(c) (i) Commutator;
(ii) (a) Series
(b) Shunt
(c) Compound
(d) Separately excited
The candidates were expected to define a generator, list three parts of a d.c. machine, state the part of a generator which enables d.c. output and state three methods of field-winding connection.
Candidates were reported to have performed very good in this question.