IFS-Civil-Engineering-2012-Part-2.pdf -...

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_ JralwoforesfSP.IV~oJ--~ _ U ( D-GT-M-DFB] I · CIVIL ENGINEERING Paper-11 (Time Allowed: Three Ho~rs) {Maximum Marks : 200] INSTRUCTIONS Candidates should attempt Question Nos. I and 5 which are compulsory, and any THREE of the remaining questions, selecting at least ONE question from each Section. All questions carry equal marks. The number of marks carried by each part/ sub-part ofa question is indicated against each. Answers must be written in ENGLISH only. If any data is considered insufficient, assume suitable value and indicate the same in your answer. Unless otherwise indicated, symbols and notations have usual meanings. Neat sketches may be drawn; wherever required.
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Important Note :- All parts/sub-parts o/a question must be attempted contiguously. That is, .candidates must complete attempting all parts/sub-parts of a question being answered in the answer-book before moving O(l to the next question. Pages left blank, if any, in the answer-book(s) must be clearly struck out. Answers that follow pages left blank may not be given credit. SECTION-A 1. (a) Explain five different types of R.C.C. flat floors (which can support live loads). I 0 (b) (i) Differentiate between float and slack in . Networks and discuss on discounted Present ~ (ii) Worth Analysis. 5 The following consecutive readings were taken with a dumpy level and a 4.0 m levelling staff on continuously sloping ground at a common interval of 30 m : 0.585 on A, 0.936, 1.953, 2.846, 3.644, 3.938, 0.962, 1.035, 1.689, 2.534, 3.844, 0.956, 1.579, 3.016 on B. 0 (Contd.)
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•• The elevation of A is 520.450 m. Make level book and apply usual checks. Determine level of B and the gradient of line A~. 5 (c) (i) Explain CBR value for the design of flexible pavement. Determine the CBR value of a given soil sample, if load carried by the sample at penetration level of 2.5 mm and 5.0 mrn are 64.6 kg and 91.20 kg respectively. 5 (ii) Soil subgrade sample collected from site was analysed for the highway pavement design and results obtained are given below. Calculate Group Index Value of the sample. Soil portion passing 0.075 mrn sieve = 55 % Liquid limit Plastic limit = 45% = 20% 5 (d) Calculate curve lead, radius, switch lead and lead required to set out a 1 in 8.5 turnout, taking off from straight B.G. track with its curve starting from the toe of the switch, i.e. tangential to the gauge face of the outer main rail and passes through theoretical nose of crossing i.e. NTC. Given heel-divergence = 11.4 em. 10 0 (Contd.)
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2. (a) (i) What are the problems encountered for concreting in hot weather ? 3 (ii) Mention the main components of Portland cement. 2 (iii) What is unity of command in organisation ?
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  • Summer '16
  • SK CHAND
  • Gradient, Gravity Dam, Activated sludge, Two and a Half Men, embankment dam

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