GURU GHASIDAS VISHWAVIDYALAYA, BILASPUR (C.G.) INSTITUTE OF TECHNOLOGY

DEPARTMENT OF CIVIL ENGINEERING B.TECH 3rd YEAR, Vth SEMESTER

SUBJECT: TRANSPORTATION ENGINEERING-II COURSE CODE: 31CE05T

MAXIMUM MARKS: 60 Instruction:

(i) All Questions of Section-A are compulsory and carry 2 marks each. (ii) Attempt any two Questions from each unit of Section-B, carry 4 marks each. (iii) Draw sketches if necessary. (iv) Assume suitable data if missing and mention it clearly.

SECTION-A

1 What is tube railway?

ANS. The railways which are constructed underground at a depth of 18 m is called Tube railway.

2 What is reconnaissance survey?

ANS. It is a rough inspection of various physical characteristics of the area to investigate the suitability of different alignments marked on the available map.

3 What is the weight of rail used in India for B.G.?

ANS. 45 Kg.

4 What do you mean by “adzing of sleepers”?

ANS. Cutting of wooden sleepers in 1:20 slope is called adzing of sleepers.

5 The rate of rise or fall provided to the formation of railway track is known as _________.

ANS. (a) Gradient

6 Minimum formation width in embankment as recommended by Indian Railway Board in single track is _________ m.

ANS. (b) 6.1

7 The bent portion of rail used in front of nose of crossing which guides the train wheel in their

proper route is called ________ rail.

ANS. (b) Wing

8 The signal which controls the movement of the train before entering the station premises is called _________ signal.

ANS. (a) Home

9 The weight of the ship without cargo, fuel and stores is known as ________.

ANS. (b) Dispalcement light

10

ANS

2

ANS

0 ______railway

S. (b) Cen

Explain

alignme

S.

____ drain track or tw

ntral

n what is

ent? Explai

method iswo lane road

meant by

n in details

s commonld.

SEC

U

track align

s.

ly used for

CTION-B

UNIT-1

nment? W

r drainage

hat are th

of the tun

e basic re

nnel carryi

equirements

ng double

s of good

3

ANS

4

ANS

Why is

in India

S. It desira

This prthrough a. Namb. Draw

S. The va

a. Tb. Tc. Dd. Pe. P

Curved

 

it desirable

a?

able to hav

roblem beinhout countr

me the variow a cross s

i. Cii. St

rious instru

Theodolite TacheometDumpy levePlane tablePrismatic c

d track.

e to have a

ve a uniform

ng solved iry.

ous instrumsection of durved tracktraight track

ument used

ter el for levellie with accescompass for

a uniform g

m gauge in a

n India by

ment used inouble line B

k. k. in prelimin

ing ssories. r bearings.

auge in a c

a country b

adopting B

n preliminarBroad Gaug

nary survey

country? H

because of t

Broad gaug

ry survey.ge track in

are:

ow is this p

the followin

ge (1.676m

Embankme

 

problem be

ng reasons:

) as Stand

ent on:

eing solved

:

ard gauge

Straight track. 

 

UNIT-2

5 Compare wooden, steel, CI and concrete sleeper on the basis of different characteristics of

sleepers.

ANS.

S. N. Items of comparision

Wood Steel Cast Iron Concrete

1 Weight per sleeper (kg)

54.5 77.57 113.4 Heavier than others

2 Life (yrs) 12-15 40-50 40-50 50-60 3 Cost per sleeper Least Higher Moderate Depends on

design 4 Fittings Less Less More Less 5 Handling Not liable to

break Not liable to

break liable to break Not liable to

break 6 Gauge

maintenance Difficult Simple Simple Simple

7 Gauge adjustment

Difficult Easy Easy Easy

8 Elasticity Poor Better Better  Better9 Laying and

Relaying Easy Easy Difficult Mechanically

easy 10 Suitability Suitable for all

purpose Suitable only for

stone ballast Suitable only for

stone ballast Suitable only

for all locations 11 Rigidity Poor Better Better Best 12 Renewal Easy Difficult Difficult Difficult13 Creep of rail Heavy Less Less Nil 14 Track circuiting Best Restricted Restricted Moderate 15 Cost of

maintenance Higher Moderate Moderate  Moderate

16 Overall Economy

Initially cheaper but higher in the

long run

Initially cheaper but higher in the

long run

Costlier initially but cheaper

later on

Costlier initially but cheaper

later on 17 Scrap value Very little Less CI higher Nil

6 Describe with neat sketches various types of rails. Compare merits and demerits of Bull headed

ANS

and Fla

S.

Double

Bull hea

Flat foo

at footed rai

Headed R

aded rails:

oted rails:

il.

Rails:

7

ANS

a. Whab. Wha

S.

t are the fut are the re

Require

nctions of bequirements

ements o

ballast? s of good ba

of good b

allast?

allast

8

ANS

9

Define

S.

Derive

gradient. W

a relations

What are the

hip of supe

e purposes

er-elevation

s of providin

with gauge

ng gradient

e, speed an

in railway?

nd radius of

?

f the curve.

ANS

10

S.

0 What aare the objeects of provviding transsition curve

e? Give esssential requ

uirements oof an ideal

ANS

transitio

S.

on curve.

11

ANS

What is

S.

s marshallinng yard? WWhat are the

UNIT-4

e different tyypes of marshalling yaards? Expla

ain briefly.

12

ANS

2 What is

acute a

S. Crossingflange

along oRequiri. Croii. Win

wheiii. The

cros

s meant by

angle and o

g is a deve, moving one to passrements of ssing asse

ng rails andeel, hence se nose of cssing.

crossing? W

obtuse angle

vice provide

s across thean ideal crmbly shoul nose of crshould be mrossing sho

What are th

e crossing

ed at the in

e other. rossing: d be rigid e

rossing shomanufactureould have a

he requirem

with diagra

ntersection

enough to would be ableed of speciadequate th

ments of an

ams.

of two ru

withstand see to resist hal steel (allhickness to

ideal cross

nning rails

evere vibraheavy wearoy steel).

o take all st

sing? Expla

to permit

tions. r due to mo

tresses act

ain square,

the wheel

ovement of

ting on the

13

ANS

3 What is

their fu

S.

s meant by

nctions.

y turnout? Enumeratee and explaain the commponent paarts of a turrn out with

14

ANS

4 a. Wha

b. Wha

S.

at is tunnel?

at are the a

? Give the n

advantages

necessity o

and disadv

UNIT-5

of tunnels?

vantages off tunnels?

15

ANS

5 What dposition

S.

o you unden of a harbo

erstand by or?

harbor plannning? Whaat considerrations are taken in seelecting thee

16 What is drainage of tunnels? What is its necessity? Explain various methods of drainage of tunnels, give neat sketches.

ANS.