A farmer uses a long horizontal pipeline transfer water with 1H.P pump and the discharge q litres/m in the samepipe line and assuming the friction factor is unchanged the discharge will be approx
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The head less coefficient in a sudden expansion in figure below is proportional to
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A 3 m high retaining wall is supporting a saturated sand(saturated due to capillary action) of bulk density 18 kN/m3 and angle of shearing resistance 30º.The change in magnitude of active earth pressure at the base due torise in ground water take from the base of the footing to the ground surface shall (rw= 10kN/m3)
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A footing 2.25 m square is located at a depth of 1.5 m in a sand of unit weight 18 kN/m3.
The shear strength parameter are C1= 0, φ= 360º calculate the safe load, (in kN) carried by the footing against complete share failure.Factor of safety against sheer failure is 3. Use Terzag his analysis.
(Nc = 65.4, Nq = 49.4, Nr = 54.0).
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Solution
qs = 1⁄F [rD(Ng-1) + 0.4r]BrNr + rDF
= 1⁄3[18 + 1.5(49.4 - 1) + 0.4 × 18 × 2.25 × 54 + 18 × 1.5]
= 754.2 kN/m2Total safe load, Q = A × qs.
= (2.25)2 × 754.2
= 3818 kN
A square footing is to be established in a clay soil at a depth of 2m, where water fable has risen up to the ground level as shown in fig.Assume that the net load for the given footing is a constant and that the some is dispersed in to a clay as shown with load dispersion as 2V to 1H.(rw= 10 kN/m3, rsat= 19.3 kN/m3) Net load = 50 kN,Cc= 0.36, e0= 0.92)
What is the width of the following required of it is permitted to settle by 120 mm?
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An RC short column with 300 mm × 300 mm square crosssection is made of m-20 grade concrete and has 4 numbers,20 mm diameter longitudinal bases of Fe-415 steel. It is under the action of a concentric axil compressive load.Ignoring the reduction in are of concrete due to bass, the ultimate axial load carrying capacity of column is ______.
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Pu = 0.4 fckAc + 0.67 fy Asc
= 0.4 ×20 × (300 × 300) + 0.67 × 415 ×(4 × π⁄4 × 202)
= 1069 kN
The maximum tensile stress at the section X-X shown in figure is
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For the frame shown in the figure, the maximum 8 m in the column is
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Consider F B D of column A B
MA= 100 × 4
= 400 kNm
The strain energy stored in the beam with flexural rigidity EI and loaded as shown in figure is
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A cantilever beam x4 is made of stepped circular shaft of diameters 100 mm and 50 mm, as shown in the following figure. The cantilever is subjected to two concentrated bending moments, one of 100 Nm at point y and other of 200 Nm at point z. the maximiun bending stress in mPa experienced by the cantilever is ________ .
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