SET 2026 WIRING FUNDAMENTALS
QUESTIONS ANSWERS HIGH YIELD A+
◉ Armature: (Definition)
Answer: The rotating windings of a DC motor.
◉ The ____ is a movable electromagnet located between the poles of
another fixed permanent (field) magnet as shown.
Answer: Armature
◉ A twisting force called ______ must be developed. _____ is produced
by mounting a loop in a fixed magnetic field and as long as the fields
of the magnet and armature interact.
Answer: Torque
◉ Commentator: (Definition)
Answer: A device used on electric motors or generators to maintain
a unidirectional current.
, ◉ In the neutral plane, no ____ is produced and the rotation of the
armature should stop
Answer: Torque
◉ A _____ is produced by the fields poles, and a loop of wire in the
armature turns and cuts this magnetic field.
Answer: Magnetic field
◉ CEMF
Answer: Counter electromotive force (CEMF)
◉ Horsepower: (Definition)
Answer: The rated output capacity of the motor. It is based on
breakdown torque, which is the maximum torque a motor will
develop without an abrupt drop in speed.
◉ Horsepower: (Equation)
Answer: Hp= Watts/746
◉ Types of DC motors
Answer: Shunt
Series
Compound