A short column of external diameter D and internal diameter d, is subjected to a

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A short column of external diameter D and internal diameter d, is subjected to a load W, with an eccentricity 'e', causing zero stress at an extreme fibre. Then the value of 'e' must be
Options
A.
B.
C.
D.

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UPSC Civil Service Exam Questions problems

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1. A plot of land 60�m x 20 m is measure steel tape. If the standard error of length width measurements is taken as � 1 cm, the standard error of the area of the plot be
Options
A. � 0.1414 m²
B. � 0.566 m²
C. � 0.632 m²
D. � 0.8484 m²

2. For designing end bearing piles of square cross-section in clays having average unconfmed compressive strength of 6 t/m², the net ultimate bearing capacity may be taken as
Options
A. 15 t/m²
B. 18 t/m²
C. 20 t/m²
D. 27 t/m²

3. The side AD of the square block ABCD as shown in the given figure is fixed at the base and it is under a state of simple shear causing shear stress ? and shear strain ?, where The distorted shape is AB'C'D. The diagonal strain (linear) will be
Options
A.
B.
C. ?2
D. ?

5. The following steps are involved in making a spigot and socket joint of cast iron pipes used in water supply systems :
1. Tarred gasket or hemp yarn in wrapped around the spigot.
2. The sipgot end is centered into the socket end of the preceding pipe.
3. A joining ring end is placed around the barrel and against the face of the socket.
4. The gasket or hemp yarn in caulked slightly.
5. Molten pig lead is poured and then caulked.
The correct sequence of these steps is
Options
A. 2, 1, 4, 3, 5
B. 2, 1, 3, 4, 5
C. 1, 2, 4, 5, 3
D. 1, 2, 3, 5, 4

8. Purlins are provided, in industrial buildings, over roof trusses to carry dead loads, live loads and wind loads. As per IS code, what are they assumed to be?
Options
A. Simply supported
B. Cantilever
C. Continuous
D. Fixed

9. The ratio of total elongation of a bar of uniform cross-section produced under its own weight to the elongation produced by an external load equal to the weight of the bar is
Options
A. 2
B. 1
C. 1/2
D. 1/4

10. The rectangular block shown in the given figure is subjected to pure shear to intensity 'q'. If BE represents the i principal plane and the principal stresses are ?₁, ?₂ ; then the values of ?, ?₁ and ?₂ will be respectively.
Options
A. ?�, 90�; + q and - q
B. 30�, 120�; + q and - q
C. 45�, 135�; + and
D. 45�, 135�; + q and - q

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