PAPER FULL QUESTIONS AND ANSWERS
2026
◉ In a generator, a DC voltage applied to the field windings controls
the output level.
A. True
B. False
Answer: A. True
◉ Which one of the below might be used in DC motor electronic
speed controls?
A. Delta coil
B. Magnetic brush
C. Slip rings
D. Comparator op-amp
Answer: D. Comparator op-amp
◉ Which one of below will cause a generator to produce DC voltage
rather AC voltage?
,A. Brushes
B. Armature
C. Commutator
D. Field windings
Answer: C. Commutator
◉ Total capacitance of capacitors in parallel is like:
A. Resistors connected in series
B. Capacitors connected in series
C. Resistors connected in parallel
D. Inductors connected in parallel
Answer: A. Resistors connected in series
◉ Which factor determine the value of a capacitor?
A. Area of the plates
B. Temperature coefficient of the dielectric
C. Inductance of the dielectric
D. Insulation covering
Answer: A. Area of the plates
,◉ A 3/8-inch diameter by 3/16-inch ceramic disk capacitor marked
"47" is most likely what value?
A. 47 nf
B. 47 uf
C. 47 pf
D. 47 nf
Answer: C. 47 pf
◉ What happens to current flow in a capacitor when the DC voltage
across it has increased to the applied voltage?
A. Current flow is maximum in capacitor
B. Little current flows
C. Polarity reverses
D. Voltage drop is maximum
Answer: B. Little current flows
◉ Decreasing the inductance in a series tuned circuit will cause the
resonant frequency to:
, A. Increase
B. Decrease
C. There will be no change
D. Become unstable
Answer: A. Increase
◉ Which of these is within tolerance for a resistor color coded red,
black, red, gold.
A. 1850 ohms
B. 2150 ohms
C. 1950 ohms
D. 2250 ohms
Answer: C. 1950 ohms
◉ A high current NP device would most likely be found:
A. In a surge suppressor
B. As the radiator in a micro-wave oven
C. In the DC power supply of a television
D. As the oscillator in a superheterodyne receive
Answer: A. In a surge suppressor