Download GTU BE/B.Tech 2018 Winter 6th Sem New 2162410 Industrial Communication System Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2018 Winter 6th Sem New 2162410 Industrial Communication System Previous Question Paper

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Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ?VI (NEW) EXAMINATION ? WINTER 2018
Subject Code:2162410 Date:30/11/2018

Subject Name:Industrial Communication System

Time: 02:30 PM TO 05:00 PM Total Marks: 70

Instructions:

1. Attempt all questions.

2. Make suitable assumptions wherever necessary.

3. Figures to the right indicate full marks.

Q.1 (a) Explain following terms.
(i) Modulation (ii) Channel Capacity (iii) Baud rate.
03
(b) Explain Amplitude modulation in brief. 04
(c) Draw and explain block diagram of communication system. 07

Q.2 (a) Explain Phase modulation in brief. 03
(b) The total AM signal power is 48 Watts. Modulation index of AM
is 45%. Calculate Carrier signal power and Sideband power.
04
(c) Explain Frequency modulation in detail. 07
OR
(c) Explain various communication modes in detail. 07

Q.3 (a) Differentiate balanced and unbalanced transmission lines. 03
(b) Explain ASK and FSK in brief. 04
(c) Explain the UART transmitter and receiver with the help of block
diagram.
07
OR
Q.3 (a) An Amplifier has a BW of 4MHz with 10k? as the input resistor.
Calculate the RMS noise voltage at the input to this amplifier if
the room temperature is 25?C.
03
(b) Explain in brief Suppression Techniques. 04
(c) Explain PAM, PWM and PPM in detail. 07

Q.4 (a) Explain USB in brief. 03
(b) Explain network topologies in brief. 04
(c) Explain RS-232 interface standards. 07
OR
Q.4 (a) Explain GPIB in brief. 03
(b) Explain Wireless LAN using CSMA/CA in brief. 04
(c) Explain RS-422 and RS-485 interface standards in detail. 07

Q.5 (a) What is Protocol? list out various communication protocol. 03
(b) Explain various types of cables in brief. 04
(c) Explain TCP/IP protocol in detail. 07
OR

Q.5 (a) Explain advantages of optical fiber cable. 03
(b) Define followings terms.
(i) Noise Figure (ii) Noise Temperature
04
(c) List the benefits of FIELDBUS and DEVICE NET system.
Describe three Network classes of FIELDBUS and DEVICE NET
system.
07

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