The void ratio and specific gravity of a soil are 0.6 and 2.7,respectively. The degree of saturation corresponding to water content of 20% is __________.
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Solution
The loss of pre-stress due to elastic shortening of concrete is least in
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Solution
The loss of prestress due to elastic shortening of concrete is least in one wire post tensioned beam.
An irrigational land of 437 Ha is to be irrigated for a particular crop. The base period of the crop is 90 days and the total depth of water required by the crop is 105 cm. If a rainfall of 15 cm occurs during the base period, the duty of irrigated water (in ha/cumec) is
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Solution
Duty, D = 8.64 B⁄Δ
Base period, B = 90 days.
Total depth required = 105 m
Rainfall = 15 cm
Irrigation depth, Δ= 105 – 15
= 90 cm =0.9 m
∴ D = 8.64 × .90⁄9
= 864 Ha/cumec
The matrix \(\begin{bmatrix} 1 &2 &3 \\ 3 &0 &6 \\ 1 &1 & p \end{bmatrix}\) has one eigen value 3. The sum of other two eigen values is
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Solution
Using property,
Sum of eigen value= sum of diagonal elements
(Let aand b be other two eigen values)
a + b + 3 = P + 1
∴(a+ b) = P + 1 – 3
= P– 2
What is the value of \(\lim_{x \rightarrow \frac{ \pi }{4}}\frac{cos\: x–sin\: x}{x-\frac{\pi }{4}}\)?
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Solution
A 40° slope is excavated to a depth of 10m in a deep layer of saturated clay of unit weight 20 kN/m3. (Cu= 72 kN/m2, φu= 0). The taylor’s stability co-efficient is 0.18. The factor of safety of slope is __________ .
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Solution
Carbon steel contains what percentage of carbon?
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Solution
In a triaxial shear test, conducted on a sand specimen at a confining pressure of 100 kN/m2
under drained conditions,resulted in a deviator stress at failure of 100 kN/m2.The angle of shearing resistance of soil would be
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Solution
If A and B be sets and AC and BC denote the complements of the sets A and B, then set (A – B) ∪ (B – A) ∪(A ∩ B)is equal to
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Solution
A 25 kN point load acts on the surface of an infinite elastic medium. The vertical pressure intensity (in kN/m2) at a point 6 m below and 4 m away from the load will be