TIG special Test 2 third year

TIG special Test 2 third year

University

20 Qs

quiz-placeholder

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TIG special Test 2 third year

TIG special Test 2 third year

Assessment

Quiz

Architecture, Other

University

Practice Problem

Hard

Created by

Jayamani K

Used 1+ times

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20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

The short circuit impedance is given by 18 ohm and the characteristic impedance is 50 ohm. Find the open circuit impedance.

138.8
188.3
388.1
838.1

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

For a load impedance of ZL=60-j80. Design of 2 single-stub shunt tuning networks to match this load to a 50Ω line is to be done. What is the normalized admittance?

1+j
0.3+j0.4
0.4+j0.3
0.3-j0.4

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

If the normalized admittance at a point on a transmission line to be matched is 1+j1.47. Then the normalized susceptance of the stub used for shunt stub matching is:

1 Ω
1.47 Ω
-1.47 Ω
-1 Ω

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 In series stub matching, if the normalized impedance at a point on the transmission line to be matched is 1+j1.33. Then the reactance of the series stub used for matching is:

1 Ω
 -1.33 Ω
-1 Ω
1.33 Ω

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The characteristic impedance of a line having open and short impedances of 20 and 5 respectively is

20
100
250
10

6.

MULTIPLE CHOICE QUESTION

5 sec • 1 pt

A spectrum of 30 MHz is allocated to a cellular system which uses two 25 KHz simplex channels to provide full duplex voice channels. What is the number of channels available per cell for 4 cell reuse factor?

150 Channels
100 Channels
200 Channels
115 Channels

7.

MULTIPLE CHOICE QUESTION

5 sec • 1 pt

Which among the following processing steps combine multiple OFDM subcarriers into a single signal for transmission?

Serial to Parallel conversion
FFT
IFFT
Channel Mapping

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