# Home / Mechanical Engineering / Strength of Materials :: Section 1

### Mechanical Engineering :: Strength of Materials

1. Strain energy is the

2.  A. energy stored in a body when strained within elastic limits B. energy stored in a body when strained upto the breaking of a specimen C. maximum strain energy which can be stored in a body D. proof resilience per unit volume of a material   3. A vertical column has two moments of inertia (i.e. Ixx and Iyy ). The column will tend to buckle in the direction of the

4.  A. axis of load B. perpendicular to the axis of load C. maximum moment of inertia D. minimum moment of inertia   5. The neutral axis of the cross-section a beam is that axis at which the bending stress is

6.  A. zero B. minimum C. maximum D. infinity   7. Euler's formula holds good only for

8.  A. short columns B. long columns C. both short and long columns D. weak columns   9. The object of caulking in a riveted joint is to make the joint

10.  A. free from corrosion B. stronger in tension C. free from stresses D. leak-proof   11. A steel bar of 5 mm is heated from 15° C to 40° C and it is free to expand. The bar Will induce

12.  A. no stress B. shear stress C. tensile stress D. compressive stress   13. A body is subjected to a tensile stress of 1200 MPa on one plane and another tensile stress of 600 MPa on a plane at right angles to the former. It is also subjected to a shear stress of 400 MPa on the same planes. The maximum normal stress will be

14.  A. 400 MPa B. 500 MPa C. 900 MPa D. 1400 MPa   15. Two shafts 'A' and 'B' transmit the same power. The speed of shaft 'A' is 250 r.p.m. and that of shaft 'B' is 300 r.p.m. The shaft 'B' has the greater diameter.

16.  A. True B. False   17. A thick cylindrical shell having ro and ri as outer and inner radii, is subjected to an internal pressure (p). The maximum tangential stress at the inner surface of the shell is

18.  A. B. C. D.    19. The stress induced in a body, when suddenly loaded, is __________ the stress induced when the same load is applied gradually.

20.  A. equal to B. one-half C. twice D. four times   