Civil Engineering - Strength of Materials

Exercise :: Strength of Materials - Section 3
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:

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:

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:

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 10^{6} , 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:

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

Answer: Option C

Explanation: