Exam Details
| Subject | civil engineering | |
| Paper | paper 2 | |
| Exam / Course | indian forest service | |
| Department | ||
| Organization | union public service commission | |
| Position | ||
| Exam Date | 2016 | |
| City, State | central government, |
Question Paper
What is workability of concrete?
What is the effect of the following on the workability of fresh concrete
Size of aggregate
Cement content
Water to cement ratio
Entrained air
In the context of functional planning of buildings, explain
Aspect
Privacy
Circulation
Prospect
Roominess
Differentiate between 'Reciprocal levelling' and 'Profile levelling'.
Differentiate between 'outer signal' and 'home signal'.
What are the purposes of evaluation of pavements
What are the objectives of economic evaluation of highway projects?
A construction project consists of 8 major activities. Their interdependency is given below. Draw the network and determine the time fr completion of the
project. Also mention duration for each path.
Activities B and E can start concurrently. (Starting of the project)
Activities C and D are concurrent and depend on the completion of A and B.
Activities F and G are concwTent and can start after completion of C.
Activity H depends on the completion of E and F.
Project ends with the completion of G and H
Time needed for each activity is
A 4 weeks
B 3 weeks
C 5 weeks
D 2 weeks
E 4 weeks
F 3 weeks
G 4-weeks
H 2weeks
What is a Composite Masonry List out various types of composite masonry and state their application·
Compute the correct interior angles of a closed compass traverse PQRSTP using the following data
src='./qimages/7946-2c.jpg'>
Assume that the observed bearing of line RS to be correct, determine the correct bearing of all other lines. Also correct the interior angles for observational errors.
Briefly explain how contour maps can be used to determine reservoir capacity.
What are the important points to be considered in the design of marshalling yard
What is a Dragline? Give a typical sketch of it. Mention the factors that influence output of the Dragline.
The details of two schemes related to cost and benefit is presented. Taking rate of interest as l0% suggest the most economical proposal.
src='./qimages/7946-3b.jpg'>
A new B.G. Railway track is to be constructed as per the following details:
Degree of curve 5°
Ruling gradient at curve section 1 in 180
Average speed of trai 1 at curve section 50 kmph
Determine actual ruling gradient for the section
equilibrium cant
Assume data suitably, if found missing.
Determine the radius of relative stiffness of a rigid concrete pavement using the following data
Modulus of elasticity of concrete 3.0xl0^5 kg/cm^2 Thickness of pavement slab 20 cm
Poisson's ratio 0.15
Wheel load 4100 kg
Pressure applied to the plate
load test at 1-25 mm displacement 0.375 kg/cm^2
What are the requirements for good drainage while designing and constructing the roads.
4. For a major construction 1 ·50 million tons of stone aggregate is required. The temporary road costs Rs. 60 lacs. Hauling charge of stone is Rs. 10 per tonne of
truck. Cost of belt conveyor is Rs. 70 lacs. Its salvage value is 20% of the original cost of belt conveyor. Maintenance cost is 30% depreciated value and electric
power cost is original cost. Suggest the best alternative for tucks or belt conveyor.
List out different quality tests to. be clone for
Cement
Fine ag1rregatc
Coarse aggregate
Fresh concrete
Hardened concrete
What are the obligatory points to be considered for selecting the road alignnents.
Briefly explain the functions of base course and surface course in flexible pavements.
The following data is provided for a 2-phase traffic signal to be installed at a right angled intersection of two roads PQ and RS. The turning traffic is not substantial at this intersection.
src='./qimages/7946-4d.jpg'>
Determine optimum cycle length distribute green time on two roads
PQ and RS Assume total time lost during total cycle as 12 seconds. Assume any other data suitably, if found missing.
5. Three wells Band tap the same horizontal aquifer. The distances AB= 1200 m and BC=1000m. The Well B is exactly south of Well A and Well C lies to the west of Well B. Following are the ground surface elevation and depth of water below the ground surface in the three wells
src='./qimages/7946-5a.jpg'>
Determine the direction of ground water flow in the aquifer in the area ABC of the wells.
Describe the basic types of dams, on the basis of the type and materials of construction and principle of function.
Describe any three methods of estimating the future population of a town with their relative advai1tages and disadvantages.
Discuss variation in water demand and their effects on the design of various components of water supply schemes.
What is hardness of water'? How it is measured in the laboratory Discuss Lime soda process for removing hardness.
6.(a)Discuss the principle of recuperation test of an open-well and derive equation for the specific capacity Ks per unit Well area.
Design the bottom diameter of a dug Well in tine sand region, to obtain 10 litres/ second of yield, under depression head of 2·5 m. The value of Ks specific
capacity per unit area may be taken as 0·6/hour.
Compute the average discharge requirement and peak demand fr the following
src='./qimages/7946-6b.jpg'>
Explain the importance of BOD test in waste water treatment. Differentiate BOD and COD. Also explain the use of population equivalent in municipal sewage treatment.
6.
Explain self cleansing velocity and non-scouring velocity and their importance in the design of sewers. Define and explain hydraulically equivalent section connected to sewer designs,
Explain briefly the tracer method of flow measurement. A 25 g/litre of a fluorescent tracer, was discharged into a stream at a constant rate of 10cm^3
second. The background concentration of the dye in the stream water was found to be zero. At a down steam section sufficiently far away, the dye was found to reach
an equilibrium concentration of 5 parts per Billion. Estimate the stream discharge.
What is meant by 'water logging'? What are the principal causes and effects of water logging in a canal irrigated farm
What is activated sludge Explain the working of the activated sludge plant. Discuss its advantages and disadvantages.
What are various methods used for disposal of municipal solid wastes Explain any two widely adopted methods for municipal solid waste disposal in India.
8. Describe 'furrow irrigation' and 'sprinkler irrigation'. Which one is preferred in India and why.
What are the 'canal falls'? Where are they located List different types of falls.
8. Differentiate between the primary and secondary air pollutants. Describe the harmful effects of important air pollutants on materials as well as on aquatic life.
Explain the various sources of radioactivity in the environment. How are radioactive wastes generated in the production of nuclear power? How are these wastes disposed off?
What is the effect of the following on the workability of fresh concrete
Size of aggregate
Cement content
Water to cement ratio
Entrained air
In the context of functional planning of buildings, explain
Aspect
Privacy
Circulation
Prospect
Roominess
Differentiate between 'Reciprocal levelling' and 'Profile levelling'.
Differentiate between 'outer signal' and 'home signal'.
What are the purposes of evaluation of pavements
What are the objectives of economic evaluation of highway projects?
A construction project consists of 8 major activities. Their interdependency is given below. Draw the network and determine the time fr completion of the
project. Also mention duration for each path.
Activities B and E can start concurrently. (Starting of the project)
Activities C and D are concurrent and depend on the completion of A and B.
Activities F and G are concwTent and can start after completion of C.
Activity H depends on the completion of E and F.
Project ends with the completion of G and H
Time needed for each activity is
A 4 weeks
B 3 weeks
C 5 weeks
D 2 weeks
E 4 weeks
F 3 weeks
G 4-weeks
H 2weeks
What is a Composite Masonry List out various types of composite masonry and state their application·
Compute the correct interior angles of a closed compass traverse PQRSTP using the following data
src='./qimages/7946-2c.jpg'>
Assume that the observed bearing of line RS to be correct, determine the correct bearing of all other lines. Also correct the interior angles for observational errors.
Briefly explain how contour maps can be used to determine reservoir capacity.
What are the important points to be considered in the design of marshalling yard
What is a Dragline? Give a typical sketch of it. Mention the factors that influence output of the Dragline.
The details of two schemes related to cost and benefit is presented. Taking rate of interest as l0% suggest the most economical proposal.
src='./qimages/7946-3b.jpg'>
A new B.G. Railway track is to be constructed as per the following details:
Degree of curve 5°
Ruling gradient at curve section 1 in 180
Average speed of trai 1 at curve section 50 kmph
Determine actual ruling gradient for the section
equilibrium cant
Assume data suitably, if found missing.
Determine the radius of relative stiffness of a rigid concrete pavement using the following data
Modulus of elasticity of concrete 3.0xl0^5 kg/cm^2 Thickness of pavement slab 20 cm
Poisson's ratio 0.15
Wheel load 4100 kg
Pressure applied to the plate
load test at 1-25 mm displacement 0.375 kg/cm^2
What are the requirements for good drainage while designing and constructing the roads.
4. For a major construction 1 ·50 million tons of stone aggregate is required. The temporary road costs Rs. 60 lacs. Hauling charge of stone is Rs. 10 per tonne of
truck. Cost of belt conveyor is Rs. 70 lacs. Its salvage value is 20% of the original cost of belt conveyor. Maintenance cost is 30% depreciated value and electric
power cost is original cost. Suggest the best alternative for tucks or belt conveyor.
List out different quality tests to. be clone for
Cement
Fine ag1rregatc
Coarse aggregate
Fresh concrete
Hardened concrete
What are the obligatory points to be considered for selecting the road alignnents.
Briefly explain the functions of base course and surface course in flexible pavements.
The following data is provided for a 2-phase traffic signal to be installed at a right angled intersection of two roads PQ and RS. The turning traffic is not substantial at this intersection.
src='./qimages/7946-4d.jpg'>
Determine optimum cycle length distribute green time on two roads
PQ and RS Assume total time lost during total cycle as 12 seconds. Assume any other data suitably, if found missing.
5. Three wells Band tap the same horizontal aquifer. The distances AB= 1200 m and BC=1000m. The Well B is exactly south of Well A and Well C lies to the west of Well B. Following are the ground surface elevation and depth of water below the ground surface in the three wells
src='./qimages/7946-5a.jpg'>
Determine the direction of ground water flow in the aquifer in the area ABC of the wells.
Describe the basic types of dams, on the basis of the type and materials of construction and principle of function.
Describe any three methods of estimating the future population of a town with their relative advai1tages and disadvantages.
Discuss variation in water demand and their effects on the design of various components of water supply schemes.
What is hardness of water'? How it is measured in the laboratory Discuss Lime soda process for removing hardness.
6.(a)Discuss the principle of recuperation test of an open-well and derive equation for the specific capacity Ks per unit Well area.
Design the bottom diameter of a dug Well in tine sand region, to obtain 10 litres/ second of yield, under depression head of 2·5 m. The value of Ks specific
capacity per unit area may be taken as 0·6/hour.
Compute the average discharge requirement and peak demand fr the following
src='./qimages/7946-6b.jpg'>
Explain the importance of BOD test in waste water treatment. Differentiate BOD and COD. Also explain the use of population equivalent in municipal sewage treatment.
6.
Explain self cleansing velocity and non-scouring velocity and their importance in the design of sewers. Define and explain hydraulically equivalent section connected to sewer designs,
Explain briefly the tracer method of flow measurement. A 25 g/litre of a fluorescent tracer, was discharged into a stream at a constant rate of 10cm^3
second. The background concentration of the dye in the stream water was found to be zero. At a down steam section sufficiently far away, the dye was found to reach
an equilibrium concentration of 5 parts per Billion. Estimate the stream discharge.
What is meant by 'water logging'? What are the principal causes and effects of water logging in a canal irrigated farm
What is activated sludge Explain the working of the activated sludge plant. Discuss its advantages and disadvantages.
What are various methods used for disposal of municipal solid wastes Explain any two widely adopted methods for municipal solid waste disposal in India.
8. Describe 'furrow irrigation' and 'sprinkler irrigation'. Which one is preferred in India and why.
What are the 'canal falls'? Where are they located List different types of falls.
8. Differentiate between the primary and secondary air pollutants. Describe the harmful effects of important air pollutants on materials as well as on aquatic life.
Explain the various sources of radioactivity in the environment. How are radioactive wastes generated in the production of nuclear power? How are these wastes disposed off?