# Imp questions on Solid mechanics for civil or mechanical engineering aspirants part-07

1) The stress necessary to initiate yielding, is considerably

A. more than that necessary to continue it

B. less than that necessary to continue it

C. more than that necessary to stop it

D. less than that necessary to stop it.

2) Strain energy of any member may be defined as work done on it

A. to deform it

B. to resist elongation

C. to resist shortening

D. all the above.

3) If the length of a cantilever carrying an isolated load at its free end is doubled, the deflection of the free end will increase by

A. 8

B. 1/8

C. 1/3

D. 2

E. 3

4) The slenderness ratio of a vertical column of square cross- section of 10 cm side and 500 cm long, is

A. 117.2

B. 17.3

C. 173.2

D. 137.2

E. 13.72

5) For a beam having fixed ends, the unknown element of the reactions, is

A. horizontal components at either end

B. vertical components at either end

C. horizontal component at one end and vertical component at the other

D. horizontal and vertical components at both the ends.

6) The value of Poisson's ratio always remains

A. greater than one

B. less than one

C. equal to one

D. none of these.

7) If the depth of a simply supported beam carrying an isolated load at its centre, is doubled, the deflection of the beam at the centre will be changed by a factor of

A. 2

B. 1/2

C. 8

D. 1/8

E. 4

8) The equivalent length of a column fixed at one end and free at the other end, is

A. 0.5 l

B. 0.7 l

C. l

D. 2 l

E. 1.5 l.

9) A cast iron T section beam is subjected to pure bending. For maximum compressive stress to be three times the maximum tensile stress, center of gravity of the section from flange side is

A. h/4

B. h/3

C. h/2

D. 2/3 h.

10) The equivalent length of a column fixed at both ends, is

A. 0.5 l

B. 0.7 l

C. l

D. 2 l

E. 1.5 l

11) The rise of a parabolic arch at quarter points, is equal to

A. times the rise of the crown

B. times the rise of the crown

C. times the rise of the crown

D. times the rise of the crown

E. times the rise of the crown.

12) The effect of arching a beam, is

A. to reduce the bending moment throughout

B. to increase the bending moment throughout

C. nothing on the bending throughout

D. ail the above.

13) The phenomenon of slow growth of strain under a steady tensile stress, is called

A. yielding

B. creeping

C. breaking

D. none of these.

14) Hooke's law states that stress and strain are

A. directly proportional

B. inversely proportional

C. curvilinearly related

D. none of these.

15) A column is said to be of medium size if its slenderness ratio is between

A. 20 and 32

B. 32 and 120

C. 120 and 160

D. 160 and 180

E. 180 and 200

16) Ties are load carrying members of a frame, which are subjected to

17) At either end of a plane frame, maximum number of possible transverse shear forces, are

A. one

B. two

C. three

D. four

E. zero.