Four Terminal Networks - Electronic Engineering (MCQ) questions & answers

1)   Which unit is used for the measurement of an insertion loss?

a. Neper
b. Weber
c. Ohm
d. Watt
Answer  Explanation 

ANSWER: Neper

Explanation:
No explanation is available for this question!
2)   What would be the characteristic impedance of a T-section for symmetrical network shown below?

a. 300.15 ohm
b. 529.15 ohm
c. 715.15 ohm
d. 900.15 ohm
Answer  Explanation 

ANSWER: 529.15 ohm

Explanation:
No explanation is available for this question!
3)   Suppose that a network consists of purely resistive elements, what will be the value of propagation constant (generated output) in terms of attenuation constant and phase constant from the following?

a. γ = α + j0
b. γ = 0 + jβ
c. γ = 0 – jβ
d. γ = α - j0
Answer  Explanation 

ANSWER: γ = α + j0

Explanation:
No explanation is available for this question!
4)   What would be the value of attenuation constant especially for the network consisting of purely reactive elements?

a. 0
b. 1
c. -1
d. Infinity
Answer  Explanation 

ANSWER: 0

Explanation:
No explanation is available for this question!
5)   If a network comprises purely resistive elements, what will it provide from the following?

a. Attenuation
b. Phase Shift
c. Both a and b
d. None of the above
Answer  Explanation 

ANSWER: Attenuation

Explanation:
No explanation is available for this question!
6)   Consider the below mentioned assumptions of two symmetrical T networks in cascade configuration. What will be the value of current flowing through terminating impedance for the network configuration shown below?

Assumptions:
n = -2,
? = 1.5,
Is = 0.6 A

a. 0.0112 A
b. 0.0298 A
c. 0.04145 A
d. 0.0812 A
Answer  Explanation 

ANSWER: 0.0298 A

Explanation:
No explanation is available for this question!
7)   Consider the symmetrical T-network shown below. What will be the value of propagation constant, if characteristic impedance is estimated to be Z0 = 850.64 ohm?

a. 0.2824 neper
b. 0.1412 neper
c. 0.0706 neper
d. 0.0353 neper
Answer  Explanation 

ANSWER: 0.1412 neper

Explanation:
No explanation is available for this question!
8)   How is an insertion loss represented in terms of power ratio?

a. α = 10 log10 | P1 / P2 | decibel
b. α = 10 log10 | P2 / P1 | decibel
c. α = 20 log10 | P1 / P2 | decibel
d. α = 20 log10 | P2 / P1 | decibel
Answer  Explanation 

ANSWER: α = 10 log10 | P1 / P2 | decibel

Explanation:
No explanation is available for this question!
9)   Where do the 'correctly terminated asymmetrical networks' show termination at both the ports of network?

a. In image impedances
b. In iterative impedances
c. In characteristic impedances
d. All of the above
Answer  Explanation 

ANSWER: In image impedances

Explanation:
No explanation is available for this question!
10)   Which type of impedance in asymmetrical network is estimated at a single pair of network terminals especially in the chain of infinite networks?

a. Image impedance
b. Iterative impedance
c. Characteristic impedance
d. All of the above
Answer  Explanation 

ANSWER: Iterative impedance

Explanation:
No explanation is available for this question!

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