Power Quality and Management (2180911) MCQs

MCQs of Electrical Transients

Showing 11 to 20 out of 33 Questions
11.
_____________ allows the transient to dampen out and decay to the steady-state condition
(a) R
(b) L
(c) C
(d) All of these
Answer:

Option (a)

12.
Which of the following components contribute to the oscillatory nature in system? (i) R (ii) L (iii) C
(a) (i), (ii)
(b) (ii), (iii)
(c) (i), (iii)
(d) (i), (ii), (iii)
Answer:

Option (b)

13.
Which of the following sequence is correct while solving electrical transient-related problems? (i) derive a solution for the needed parameter (ii) remove elements in the model that are not relevant to the problem at hand (iii) determine the total transient model (iv) develop a mathematical model of the transient circuit
(a) (i)-(ii)-(iii)-(iv)
(b) (iii)-(ii)-(iv)-(i)
(c) (iv)-(ii)-(i)-(iii)
(d) (ii)-(iii)-(i)-(iv)
Answer:

Option (b)

14.
RC is the time constant of resistance–capacitance circuit and unit is ______
(a) ohm.farad
(b) sec
(c) unit less
(d) expressed in percentage
Answer:

Option (b)

15.
In RC circuit, The time constant is the time it would take for an exponentially decaying parameter to reach a value equal to __________% of the initial value.
(a) 37.69
(b) 36.79
(c) 39.76
(d) 37.96
Answer:

Option (b)

16.
L/R is the time constant of R-L circuit and it has __________
(a) Henry/ohm unit
(b) sec
(c) no unit
(d) percentage value
Answer:

Option (b)

17.
Inductor does not allow sudden change in ___________
(a) voltage
(b) frequency
(c) current
(d) phase
Answer:

Option (c)

18.
The capacitor does not allow sudden change in __________
(a) current
(b) voltage
(c) phase
(d) frequency
Answer:

Option (b)

19.
In R-C circuit, The larger the time constant RC , the rate of voltage increase across the capacitor is ___________
(a) fast
(b) slow
(c) steady
(d) unchanged
Answer:

Option (b)

20.
In ____________ circuits, the time constant indicates how quickly current can build up through an element when a switch is closed and also how slowly current will decay when the circuit is opened.
(a) Inductive
(b) Capacitive
(c) Resistive
(d) All of these
Answer:

Option (a)

Showing 11 to 20 out of 33 Questions