Civil Engineering - Strength of Materials

6. 

The shape of the bending moment diagram over the length of a beam, carrying a uniformly increasing load, is always

A. linear
B. parabolic
C. cubical
D. circular.

Answer: Option C

Explanation:

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7. 

When a rectangular beam is loaded longitudinally, shear develops on

A. bottom fibre
B. top fibre
C. middle fibre
D. every-horizontal plane.

Answer: Option D

Explanation:

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8. 

The tension coefficient of any member is

A. force divided by the length
B. tension divided by the length
C. tension per unit area
D. tension in the member.

Answer: Option B

Explanation:

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9. 

A steel rod of 2 cm diameter and 5 metres long is subjected to an axial pull of 3000 kg. If E = 2.1 x 106, the elongation of the rod will be

A. 2.275 mm
B. 0.2275 mm
C. 0.02275 mm
D. 2.02275 mm.

Answer: Option B

Explanation:

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10. 

For a given material, if E, C, K and m are Young's modulus, shearing modulus, bulk modulus and poisson ratio, the following relation does not hold good

A.
B.
C.
D.
E.

Answer: Option C

Explanation:

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