SSC JE CIVIL ENGINEERING MAINS PAPER

SSC JE CIVIL ENGINEERING MAINS 

(STSGE II) PAPER 2017

PART A
General Engineering
(CIVIL AND STRUCTURAL)

1

A)  Determine the dissolved oxygen at the end of 2 days                                                   

  for The Following Deta:---- 
             Assume Deoxygenation constant
               K = 0 -11 per day Reoxygenation
constant  R = 0-33 per day

B)        A clay stratum has 2.5 m thickness and has initial overburden

pressure of 45KN/m². The clay is over consolidated with a preconsolidation pressure of 65 kN/m². Find the final settlement

due to increment of pressure of 55 KN/m² at the middle of clay layer.

 Use the following data
Initial void ratio = 1.2
Compression index = 0.27
Swelling index = 006

C)     Discuss the factors affecting duty of water?

(D)         Calculate the safe overtaking sight distance for a design speed of

100 km/Hr. Assume maximum overtaking acceleration as 1.92 km/Hr/sec.

SSC JE CIVIL ENGINEERING MAINS PAPER

2)

A) What Are The Requirement Of Good Ballast In Railway Engineering, Explain How The Minimum Depth Of Ballast Cushion Is Estimated?

(b)  Determine the correct bearings of the lines of a closed traverse PQRSTP. The readings are as follows :-

Identify the stations affected by local attraction?

(c) What are the factors affecting selection of contour interval ?

D) A trapezoidal dam with a vertical water face is 2.5 m wide at the top and 14 m wide at the base. 
The height of the dam is 27 m. 
Find the maximum depth of water so that the dam section is free from tension.
Assume unit weight of dam material as 21 KN/m3 and that of water as 9-81 kN/m3

SSC JE CIVIL ENGINEERING MAINS PAPER

3).

A) Describe plate load test as per IS 1888 , Discuss the limitations. What are the effects of size Of plate on bearing capacity and settlement ? 





B) A classroom is of the size 8.5m x 3.6m.
 Design a simply supported roof slab for this Classroom.
 The superimposed load is 5 kN/m2. 
Use M 20 grade concrete and HYSD Fe 415 steel. 
Use Limit state method for the design?

C)  Explain the steps the design of column with helical reinforcement in limit state method.

SSC JE CIVIL ENGINEERING MAINS PAPER

4).

A) What are the characteristics of a good quality timber ?


B) Derive the condition for the trapezoidal channel Of Best section. Prove that the hydraulic mean depth for such a Channel is one-half the depth Of Flow. 


C) The discharge Of a Pelton wheel turbine is 5 m3/sec at a head Of 300 m at the nozzle. 

There are two runners and each runner has two jets. 
The length of the pipeline is 1900 m. 
The efficiency of the transmission for the pipe is 90%.
Assume friction factor f as 0.008. 

Determine 

jet diameter. pipe diameter and output of the turbine? 
&
The overall efficiency of turbine is 85%.?




D) What is Workability Of concrete ? 

Explain slump test and compacting factor test? 

Discuss the factors affecting Workability?

SSC JE CIVIL ENGINEERING MAINS PAPER

5).

A) A 6 m High Vertical wall Supports a Saturated cohesive soil with horizontal surface. 

The top 3.5 m of the Backfill has bulk density 18 kN/m3 and apparent cohesion of 16 kN/m2.
The bulk density and apparent cohesion of the bottom 2.5 m is 19.5 kN/mg and 18 kN/m2 respectively. will be total active earth pressure on the wall ?


 Draw the pressure distribution diagram.

 Assume that tension cracks will develop?.

 Locate the point of application of the resultant pressure?.







B) A direct shear test was conducted on a silty sand.
 at failure the normal and shear stresses were found to be 66 kPa and 40 kPa respectively. 

Draw Mohr's circle and determine :-


  (i) Angle of shearing resistance 

 (ii) Principal stresses at failure

 (iii) Locate the pole and find orientation Of failure plane.



C) The pump-out test was performed to determine the field permeability of an unconfined aquifer and the following observations were made :-

 RL oforiginal water table before pumping 250.5 m
 RL ofwater in the well at constant pumping = 245.6 m
 RL of the rock of impervious layer = 220.0 m
 RL of water in observation well = 249.8 m 
The distance ofobservation well from tubewell = 48 m 

Determine:- 

(i) Coefficient of permeability of the aquifer (k)


ii) Error in k if observations arc not taken in the observation well and radius of influence is assumed to be 298 m 


(iii) Actual radius of influence based on the observations Of observation well 


(iv) Radius of influence using Sichart equation
The diameter of the well is 20 cm and discharge is 250 m3/hr.

SSC JE CIVIL ENGINEERING MAINS PAPER

6).

A) Draw SFD& BMD

B) Define The Following Term:-

i)Scrap Value

ii)Salvage Value

iii)Sinking Fund & Depriciations

FOR 2018 PAPER CLICK HERE
https://prarocks77.blogspot.com/2019/12/ssc-je-2018-mains-paper.html

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