Power Quality and Management (2180911) MCQs

MCQs of Introduction to Power Quality

Showing 21 to 30 out of 48 Questions
1 2 3 4 5
21.
______________ is a short duration overvoltage event with certain rise and fall characteristics.
(a) Impulse
(b) Notch
(c) Oscillation
(d) Flicker
Answer:

Option (a)

22.
_________________ of a circuit is important for determining the characteristics of impulse voltage transients and waveform notches
(a) Mutual Inductance
(b) Self Capacitance
(c) Stray Capacitance
(d) Self Inductance
Answer:

Option (d)

23.
_______________ relates to how current in one circuit can induce noise and disturbance in an adjacent circuit
(a) Self Inductance
(b) Self Capacitance
(c) Mutual Inductance
(d) Mutual Capacitance
Answer:

Option (c)

24.
Impulse is the large current that a load draws when initially turned on.
(a) True
(b) False
Answer:

Option (b)

25.
Complete loss of voltage or current for a time period is
(a) Isolation
(b) Interruption
(c) Grounding
(d) Disturbance
Answer:

Option (b)

26.
The example of isolation between circuits is
(a) Resistor
(b) Capacitor
(c) Transformer
(d) Inductor
Answer:

Option (c)

27.
In steady-state operation, the linear load presents essentially ___________ impedance to the power source throughout the cycle of applied voltage.
(a) Increment
(b) Decrement
(c) Constant
(d) Exponential Increment
Answer:

Option (c)

28.
__________ unwanted electrical signals that produce undesirable effects in the circuits of control systems in which they occur.
(a) Distortion
(b) Noise
(c) Harmonics
(d) Disturbance
Answer:

Option (b)

29.
Notch is the Disturbance of the normal power voltage waveform lasting less than ____________.
(a) 1 cycle
(b) 10 cycles
(c) 2 cycle
(d) half cycle
Answer:

Option (d)

30.
Ratio between the active power (watts) of the fundamental wave to the apparent power (voltamperes) of the fundamental wave is
(a) Displacement Power Factor
(b) Distortion Factor
(c) Power Factor
(d) Displacement Harmonic Factor
Answer:

Option (a)

Showing 21 to 30 out of 48 Questions
1 2 3 4 5