# Electronics and Communication Engineering - Matching Questions

### Exercise :: Matching Questions - Section 3

26.

Match the following:

List I List II
A.CTFS1.Periodic
B.DTFS2.Non-periodic
C.CTFT
D.DTFT

 A. A-2, B-1, C-2, D-2 B. A-2, B-1, C-2, D-1 C. A-1, B-2, C-2, D-2 D. A-1, B-2, C-2, D-1

Explanation:

No answer description available for this question. Let us discuss.

27.

Match the following:

List I (Diode Rectifier) List II (Expression for output voltage)
A.Bridge1.
B.Half wave2.
C.Full wave using centre tapped transformer3.

 A. A-1, B-2, C-3 B. A-3, B-2, C-1 C. A-1, B-3, C-2 D. A-3, B-1, C-2

Explanation:

No answer description available for this question. Let us discuss.

28.

Match the following:

List I (Controller) List II (Controller output for unit step input)
A.Proportional derivative1.
B.Proportional plus derivative plus integral2.
C.Proportional plus3.

 A. A-1, B-2, C-3 B. A-1, B-3, C-2 C. A-3, B-2, C-1 D. A-2, B-3, C-1

Explanation:

No answer description available for this question. Let us discuss.

29.

Match the following:

List I List II
A.Laser1.Emits monochromatic light of low intensity
B.Solar cell2.Consumes electrical power due to incident light
D.LED4.Emits monochromatic light of high intensity

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

Explanation:

No answer description available for this question. Let us discuss.

30.

Match the following:

List I (Characteristics) List II (Device)
A.Voltage controlled device1.BJT
B.Current controlled device2.UJT
C.Conductivity modulation device3.FET
D.Negative conductance device4.Impatt diode

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