IFS-Civil-Engineering-2009.pdf

# IFS-Civil-Engineering-2009.pdf - Sl No IB-JGT-J-DFA I 1022...

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" Sl. No. 1022 I B-JGT-J-DFA I CIVIL ENGINEERING Paper 1 - I Time Allowed: Three Hours.! ! Maximum Marks: 200 I INSTRUCTIONS Candidnles \$l10uld attempt questions 1 and 5 which are compulsory, and any THREE of tlae remaining questions selecting oJ least ONE question from ellch Section. Assume any missing data suitably and indicate the same clearly in your answer. Starulard notatiorts are given in the questions and these notations have tlaeir usual meanings, unless otherwise indicated. The number of marks carried by each q11estion is indicaled at the end of the question. Answers must be written in ENGLISH only. 'Section-A l. Answer any four of the following: l0x4=40 (a) (i) Discuss m = 2J- 3 with reference to perfect frame, redundant frame and deficient frame. 6 (Contd.)

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(b) (ii) 25kN 25kN 4m 4m ' For the truss as shown above evaluate the reactions at A and B. 4 20t·m c A .4 m .,v 6 m _ _:_:__:,r El -·Constant Calculate the slope and deflection at C in the Beaffi AB as shown above. Find alsO the point of maximUm .deflection and itS magnitude. 10 ll-JCll"-1-lll'l\ 2 (Contcl.)
(c) (i) A I) Fixed Beam w A _L_ 9 B c D L ' ii) Overhang Beam , iij) Propped Cantilr:ver Beam Stare the conditions of static equilibrium for the given beams as shown above. -State whether they are statically deter. lninate or indeterminate, 5 3 (Contd.)

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(ii) ' I B-JGT-J-DFA T 3m 6m :: :: :: :: :: :: Fb !(~-::::-:::: -::::-:: -::::-_ Water seeps near the boi:tom of a buried GaSQline (sp, gr. = 0·68) storage tank and rises to a depth of I m as shown in the above figure. If the (ree smface of Gasoline is at 6 m above the tank bottom, fihd the gauge pressure at a point A, inside the tank's upper· surface and that at the Gasolinc~water intetface. Wha! will be the pressure at the bouoffi of t.ank in metres of w.ater q 5 (Contd.)
(d) t '-:- !; :;D-· 1 + - - '7=Jcm The front and.side views of a centrifugal pump impeller rotating at 3000 rpin are as shown in the abOve figure, If the pump delivers 200 '!itres of water per second and the blade exit angle is 35u from- the tangential direction, detennine the power requiiement a-.sociated· with the flow. The flow entering the impeller blade row is essentially radial as viewed from a stationary frame. The inner and outer radii are respectively 9 em and 15 em and the width is 'constant at 3 em as shown. 10 B-JGT-1-DFA 5 (Contd.)

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' (e) El:+4{10m- - Noulc Pr. = -22 em Hg 10 em dia (~ction)'\. 1 / "'\ El: + 2-Sm- --- ·-- ---- - " / 7 25 em dia JOcm din ' = El:O-OOm ~ A· pump is 2·5 m above the water level in a sump as shown_ in the above figure and has a press~ of -22 em of Mercury at the suction side. The suction pipe is of 25 em diameter and the delivery pipe 'is a short. 30 em diameter -pipe ending in a nozzle of 10 em diameter. If the nozzle is directed vertically upwards with its tip at an elevation of 4·0 n1.
• Summer '16
• SK CHAND
• Orders of magnitude, Aquifer

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