A steel rod of sectional area 250 sq. mm connects two parallel walls 5 m apart. The nuts at the ends were tightened when the rod was heated to 100°C. If steel = 0.000012/C°, Esteel = 0.2 MN/mm2, the tensile force developed at a temperature of 50°C, is_________________?

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In the truss shown in given figure the force in member DC is________________?

A. 100 t compressive B. 100 t tensile C. Zero D. Indeterminate...

The maximum deflection due to a load W at the free end of a cantilever of length L and having flexural rigidity EI, is_____________?

A. WL²/2EI B. WL²/3EI C. WL3/2EI D. WL3/3EI...

A cantilever of length 2 cm and depth 10 cm tapers in plan from a width 24 cm to zero at its free end. If the modulus of elasticity of the material is 0.2 × 106 N/mm2, the deflection of the free end, is________________?

A. 2 mm B. 3 mm C. 4 mm D. 5 mm...

The equivalent length of a column of length L, having both the ends hinged, is_______________?

A. 2L B. L C. L/2 D. L...

For calculating the permissible stress 0 y /[(1 + a(l/r)²] is the empirical formula, known as__________________?

A. Straight line formula B. Parabolic formula C. Perry’s formula D. Rankine’s formula...