Civil Engineering - GATE Exam Questions
Exercise : GATE Exam Questions - Section 5
11.
A pre-tensioned concrete member of section 200 mm x 250 mm contains tendons of area 500 mm2 at centre of gravity of the section. The prestress in the tendons is 1000 N/mm2. Assuming modular ratio as 10, the stress (N/mm2) in concrete is
12.
A river 5 m deep consists of a sand bed with saturated unit weight of 20 kN/m3 . vw = 9.81 kN/m3. The effective vertical stress at 5 m from the top of sand bed is
13.
Biochemical oxygen demand (BOD) of waste water is a measure of
14.
The effective width of a reinforced concrete T beam flange under compression, according to IS : 456-1978, given I0 is the distance between the adjacent zero moment points, b is the breadth of the rib and D is the thickness of the flange, is
I0 + 6D
15.
In using the data from a plate bearing test for determining the modulus of subgrade reaction, the value of settlement to be used is :
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