Time Allowed: Three
Hours maximum Marks:
200
Candidates should attempt Questions I and 5 which are
compulsory and any THREE of the remaining Questions, selecting at least ONE
questions from each section. If any data is considered insufficient, assume
suitable values. Newton may be converted to kg using the equality 1 kilonemwton
(1kN) = 100 kg, if found necessary.
SECTION – A
1. Answer
any four parts:
(a) Explain briefly the role of C₂S, C₃S, C₃A and
C₄AF compounds on the properties of concrete.
(b) Discuss
the following with respect to chain and compass survey:
(i)
Selection of survey stations
(ii)
Selection of survey lines
(iii)
Taking offsets
(iv)
Recording the field book
(c)
State the necessity and objects of highway planning. Write the
advantages of preparing Master-plan of a road.
(d) Discuss the requirements of an ideal
permanent way
(e) Explain the following terms:
(i)
Activity
(ii)
Event
(iii)
Total Float
(iv)
Free float
2. (a)
Compare:
(i)
Wheel Tractor with Crawler Tractor
(ii)
Power shove with Hoe
(b) What is creep? What
are the effects of creep? Discuss various preventive measures that can be
taken.
Which portion of track is more susceptible to creep?
(c) (i) How is a
phototheodolite different from an aerial camera?
(iii)
Write a short note on photomaps and mosaics
(a)
Calculate
the optimum cost and optimum duration for the jobs of network given in the
table. Indirect cost is Rs. 1000 per day.
|
Activity
|
Normal
|
Crash
|
||
|
Time days
|
Cost Rs.
|
Time
days
|
Cost Rs.
|
|
|
1-2
|
5
|
4000
|
4
|
5000
|
|
1-3
|
7
|
8000
|
3
|
10000
|
|
2-3
|
6
|
6000
|
2
|
8400
|
3. (a)
Explain briefly the importance of time, cost and resources in planning and
management of construction projects.
(b) Explain the terms:
(i) Defects I
timber
(ii) Decay of
timber
(iii)Seasoning of
timber
(iv)
Preservation of timber
(c) (i) Explain the method
of introducing sperelevation on a curve.
(ii) Using practical
method of design, calculate the superelevation required on horizontal curve of
state Highway with the following data:
Design speed = 70 kmph
Radius of curve = 200m
(d) To find out th3e height of a tall building,
two ranging rods of height 1.5m and 1.0 m were used. The ranging rods were
placed on a line ranged out from the corner of the building such that the
distance from the corner of the building to the longer ranging rod was 50 m and
to the shorter rod was 60m and the tops of both the ranging rods were in line
with the top of the building. Find the height of the building.
4. (a)
State the objects of plastering. Write is brief the different types of plasters
that may be adopted for a building.
(b) How are highway
projects financed? Discuss the role of government organizations and private agencies.
(c) Explain Resource
allocation.
(d) A simple circular
curve is to have a radius of 573 m. The tangents intersect at change 35 +50.
The angle of intersection is 120˚ and the length of one chain is 30m. Find
(i) The
tangent distance
(ii) The chain age at the beginning
(iii) The chainage
at the end of the curve
(v)
The length of long chord
(vi)
Number of full and sub chords
SECTION B
5. Answer
any four apart:
(a)
Define specific yield and storage coefficient.
Differentiate between them.
(b)
State the requirements of good canal lining
materials. Discuss how shotcrete and precast concrete lining is carried out.
(c)
How will you estimate the total demand of a city
for the purpose of designing a water supply scheme?
(d)
What causes hardness in water? Write various
types of hardness in water and explain each of them.
(e)
Define Air pollution and discuss air pollution
control methods.
6. (a)
Explain how the yield of an open well can be determined using recuperation
test.
(b) Describe in detail the following:
(i)
Two pipe system of plumbing in buildings
(ii)
A septic Tank
(iii)
A t ricking Filter
(c) (i) State preferable combination for a multipurpose reservoir.
(ii) In a multipurpose river
valley project the following data are collected
Gross command area = 0.88 million ha
Non irrigable area =80,000 ha
Intensity of irrigation = 90%
Base period for each season = 120 days
Crop ratio for Rabi and Kharif crop = 100% each
Net duties for Kharif and Rabi crops are 1275 ha/ cumec and 2250 ha/
cumec respectively.
Conveyance losses during each season= 10%
Power required on an average 3 cumecs for the whole year (365 days) , out
of which 80% can be diverted into irrigation canals during base period of
crops.
Assuming dead storage to be 6 x 10⁷m³ and evaporation and seepage losses
from the reservoir to be 5% calculate the capacity of the storage reservoir
required in cubic meters.
7. (a) explain in detail the step- by – step
procedure to rute a flood thorugh a reservoir by any one method.
(b)
(i) Discuss energy dissipation with its purpose Enumerate the types of
energydissipators.
(ii)
what is the function of drainage gallery in concrete gravity fam?
(c) What are the various methods of
disposal of domestic solid wastes? Describe the method of composting.
(d) A canal is requiring irrigating 20000 ha
of Rabi crop (wheat). The duty is 400 ha
per cubic meter per second. Assume side slope of 2:1 and B/D ratio as 6. Taking
permissible velocity of flow as 1.0 m/sec determine bed slope using Manning’s
formula. Take N= 0.0225.
8. (a)
Explain the various measures to reduce reservoir evaporation and explain them
in detail.
(b) Explain the design principles of
Khosla’s theory.
(c) Describe with the help of a flow chart,
the various processes involved in sludge treatment and disposal.
(d)Find out MPN / 100 ml for the following
observations taken on a water sample:
|
Set no.
|
Number of tubes in each set
|
Number of+ ve
Tubes
|
Number
of- ve tubes
|
Vol of sample in each tube
|
|
I
|
5
|
1
|
4
|
0.1
|
|
II
|
5
|
2
|
3
|
1.0
|
|
III
|
5
|
2
|
3
|
10.0
|
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