Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2018 Winter 5th Sem New 2154004 Railway And Bridge Engineering Previous Question Paper
1
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?V (NEW) EXAMINATION ? WINTER 2018
Subject Code:2154004 Date:04/12/2018
Subject Name:Railway & Bridge Engineering
Time: 10:30 AM TO 01:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
4. Support your answer with neat sketches wherever possible.
Q.1 (a) Discuss the role of railway transportation in development of a nation. 05
(b) Draw a typical cross section of a permanent way. Write down the basic
functions of various components of the railway track.
06
(c) Briefly explain: Grade compensation, Kink, Capacity of track. 03
Q.2 (a) Discuss: why the uniformity of gauges in railway is necessary? 03
(b) What are the basic requirements of good railway track alignment?
Briefly discuss factors which control the alignment of a railway track.
04
(c) Discuss: (i) Cant deficiency, (ii) Negative super elevation - for the
railway track.
07
OR
(c) Write short note on: (i) Tractive resistance, (ii) Coning of wheel. 07
Q.3 (a) Discuss the factors on which sleeper density depends and how the
sleeper density is expressed.
03
(b) Draw detailed elevation and sectional side view of typical R. C. C.
girder bridge with well foundation and show all the components.
05
(c) Calculate the maximum permissible speed on a curve of high speed
BG track having 2
0
curve, 8 cm super elevation and 160m long
transition curve.
06
OR
Q.3 (a) Draw the neat diagram of simple right hand turnout. Show its various
parts.
04
(b) Briefly describe: (i) Automatic Block System, (ii) Centralized Traffic
Control (CTC) System.
04
(c) From a layout of B.G. yard, 8
0
curve branches off from a 4
0
main curve
in an opposite direction. If speed is restricted to 30 kmph on branch
line, determine the speed restriction on the main line.
06
Q.4 (a) Briefly explain following terms and write their formulae for the
computation: Afflux, Design scour depth.
04
(b) What are the functions of bridge foundations? What are the factors
affecting for selection of types of bridge foundation?
04
(c) Compute the design discharge and linear water way for the river
bridge site from the following data: River cross sectional area = 900
sq.m, Wetted perimeter = 300 m, River bed slope = 1: 2000,
Coefficient of roughness = 0.03, Lacey?s constant = 4.8.
06
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1
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?V (NEW) EXAMINATION ? WINTER 2018
Subject Code:2154004 Date:04/12/2018
Subject Name:Railway & Bridge Engineering
Time: 10:30 AM TO 01:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
4. Support your answer with neat sketches wherever possible.
Q.1 (a) Discuss the role of railway transportation in development of a nation. 05
(b) Draw a typical cross section of a permanent way. Write down the basic
functions of various components of the railway track.
06
(c) Briefly explain: Grade compensation, Kink, Capacity of track. 03
Q.2 (a) Discuss: why the uniformity of gauges in railway is necessary? 03
(b) What are the basic requirements of good railway track alignment?
Briefly discuss factors which control the alignment of a railway track.
04
(c) Discuss: (i) Cant deficiency, (ii) Negative super elevation - for the
railway track.
07
OR
(c) Write short note on: (i) Tractive resistance, (ii) Coning of wheel. 07
Q.3 (a) Discuss the factors on which sleeper density depends and how the
sleeper density is expressed.
03
(b) Draw detailed elevation and sectional side view of typical R. C. C.
girder bridge with well foundation and show all the components.
05
(c) Calculate the maximum permissible speed on a curve of high speed
BG track having 2
0
curve, 8 cm super elevation and 160m long
transition curve.
06
OR
Q.3 (a) Draw the neat diagram of simple right hand turnout. Show its various
parts.
04
(b) Briefly describe: (i) Automatic Block System, (ii) Centralized Traffic
Control (CTC) System.
04
(c) From a layout of B.G. yard, 8
0
curve branches off from a 4
0
main curve
in an opposite direction. If speed is restricted to 30 kmph on branch
line, determine the speed restriction on the main line.
06
Q.4 (a) Briefly explain following terms and write their formulae for the
computation: Afflux, Design scour depth.
04
(b) What are the functions of bridge foundations? What are the factors
affecting for selection of types of bridge foundation?
04
(c) Compute the design discharge and linear water way for the river
bridge site from the following data: River cross sectional area = 900
sq.m, Wetted perimeter = 300 m, River bed slope = 1: 2000,
Coefficient of roughness = 0.03, Lacey?s constant = 4.8.
06
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2
OR
Q.4 (a) What are the functions of bridge bearings? What are the requirements
of ideal bridge bearings?
04
(b) Draw neat sketches: Deep base bearing, Rocker bearing, Sliding plate
bearing, Roller bearing.
04
(c) Determine the number of spans and each span length of a river bridge
from the following data: Design discharge = 1400 m
3
/s, Silt factor =
0.6, Afflux = 1m, Free board = 1.2m, Width of stream at HFL = 200m.
06
Q.5 (a) What are the objects of river training works? Explain with sketches
various types of river training works used for the bridges.
05
(b) Discuss with sketches IRC Class 70R loading for Tracked vehicle and
Wheeled vehicle.
05
(c) Describe the importance of health monitoring of bridges. 04
OR
Q.5 (a) Briefly describe with sketches ?Erection of Suspension Bridge?. 05
(b) Explain with sketches NDT tests for bridges. 05
(c) Discuss various repair and retrofitting measures can be adopted for R.
C. C. highway bridge.
04
*************
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This post was last modified on 20 February 2020