# Current Source Inverter MCQ Questions & Answers

Current Source Inverter MCQs : This section focuses on the "Current Source Inverter". These Multiple Choice Questions (MCQs) should be practiced to improve the Current Source Inverter skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.

Question 1

20 V rated 8 SCRs are connected in series. The operation voltage of the string is 50. Calculate the De-rating factor.

A. 0.67
B. 0.68
C. 0.69
D. 0.7

Question 2

Calculate the maximum frequency for ASCI using the data: R=15 k?, C=5 ?F.

A. 3.51 Hz
B. 3.69 Hz
C. 3.33 Hz
D. 3.98 Hz

Question 3

Calculate the minimum time period for ASCI using the data: R=12 k?, C=45 ?F.

A. 2.58 sec
B. 2.16 sec
C. 2.23 sec
D. 2.48 sec

Question 4

Calculate the r.m.s value of the fundamental component of the output current having an amplitude of 3 A for CSI.

A. 2.80 A
B. 2.70 A
C. 2.54 A
D. 3.48 A

Question 5

Calculate the r.m.s value of the output current having an amplitude of 2 A for CSI.

A. 3 A
B. 4 A
C. 2 A
D. 1 A

Question 6

Calculate the string efficiency if the de-rating factor is .76.

A. 24 %
B. 25 %
C. 26 %
D. 27 %

Question 7

Forced commutated CSI require _________

A. Diode
B. Resistor
C. Inductor
D. Capacitor

Question 8

Full form of ASCI is ___________

A. Auto sequential commutated inverter
B. Auto starter commutated inverter
C. Auto sequential current inverter
D. Auto sequential current inserter

Question 9

Number of switches turned on in CSI at a single time are __________

A. 2
B. 4
C. 5
D. 3

Question 10

T.H.D value for CSI is ________________

A. 48.43 %
B. 41.15 %
C. 39.15 %
D. 46.48 %

Question 11

The output current waveform for R load in CSI is ___________

A. Square
B. Triangular
C. Constant
D. Vertical

Question 12

The output voltage of CSI depends upon the load.

A. True
B. False

Question 13

The use of inductor in CSI is to make source current constant.

A. True
B. False

Question 14

What is the distortion factor value in CSI?

A. 0.85
B. 0.9
C. 0.95
D. 0.88

Question 15

Which one of the element is used to make R load commutating?

A. Inductor
B. Capacitor
C. Resistor
D. Coil

Question 16

Calculate the maximum frequency for ASCI using the data: R=15 kΩ, C=5 μF.

A. 3.51 Hz
B. 3.69 Hz
C. 3.33 Hz
D. 3.98 Hz

Question 17

Calculate the minimum time period for ASCI using the data: R=12 kΩ, C=45 μF.

A. 2.58 sec
B. 2.16 sec
C. 2.23 sec
D. 2.48 sec

Question 18

Calculate the r.m.s value of the output current having an amplitude of 2 A for CSI.

A. 3:00 AM
B. 4:00 AM
C. 2:00 AM
D. 1:00 AM

Question 19

Calculate the string efficiency if the de-rating factor is .76.

A. 24%
B. 25%
C. 26%
D. 27%