A steel rod 1 metre long having square cross section is pulled under a tensile load of 8 tonnes. The extension in the rod was 1 mm only. If Esteel = 2 × 106 kg/cm2, the side of the rod, is_________________?

Related Mcqs:

If E, N, K and 1/m are modulus of elasticity, modulus of rigidity. Bulk modulus and Poisson ratio of the material, the following relationship holds good_______________?

A. E = 3K (1 – 2/m) B. E = 2N (1 + 1/m) C. (3/2)K (1 – 2/m) = N (1 + 1/m) D. All the above...

If and are external and internal diameters of a circular shaft respectively, its polar moment of inertia, is________________?

A. D4 – d4) B. D4 – d4) C. D4 – d4) D. D4 – d4)...

Stress may be expressed in Newtons___________________?

A. Per millimetre square (N/mm2) B. Per centimetre square (N/cm2) C. Per metre square (N/m2) D. None of these...

cross sections of bronze and copper bars of equal lengt b c are their Ab and Ac are the respective stresses due to load P. If Pb and Pc are the loads shared by them, (where Eb and Ec are their modulii)____________________?

A. b c = Eb /Ec B. P = Pb + Pc C. P = Ab b + Ac b D. All the above...

P = / L² is the equation for Euler’s crippling load if_________________?

A. Both the ends are fixed B. Both the ends are hinged C. One end is fixed and other end is free D. One end is fixed and other end is hinged...