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Civil Engineering - UPSC Civil Service Exam Questions

Exercise : UPSC Civil Service Exam Questions - Section 26
46.
A simply supported beam AB of span L is subjected to a concentrated load W at the centre C of the span. According to Mohr's moment area method, which one of the following gives the deflection under the load ?
Moment of the area of M/EI diagram between A and C taken about C.
Moment of the area of M/EI diagram between A and B taken about B.
Moment of the area of M/EI diagram between A and C taken about A.
Moment of the area of M/EI diagram between A and C taken about B.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
47.
A bar of circular cross-section varies uniformly from a cross-section 2D to D. If extension of the bar is calculated treating it as a bar of average diameter, then the percentage error will be
10
25
33.33
50
Answer: Option
Explanation:
No answer description is available. Let's discuss.
48.
While concreting in cold weather where frosting is also likely, one uses
high quality portland cement with minimum volumes of added water
high alumina cement with calcium chloride additives
portland cement together with calcium chloride additives
a mixture of high alumina cement and portland cement.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
49.
A 600 mm long and 50 mm diameter rod of steel (E = 200 GPa, α = 12 x 10-6/°C) is attached at the ends to unyielding supports. When the temperature is 30°C there is no stress in the rod. After the temperature of the rod drops to - 20°C, the axial stress in the rod will be
24 MPa (compressive)
72 MPa (compressive)
120 MPa (tensile)
144 MPa (compressive)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
50.
The correct sequence, in the direction of the flow of water for installations in the hydro-power plant is
reservoir, surge tank turbine, penstock
reservoir, penstock, surge tank, turbine
reservoir, penstock, turbine, surge tank
reservoir, surge tank, penstock, turbine
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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