engineering recuitment KPSC JE Civil Mock Test 2020 Strength of Materials Simple Stress and Strain Deflection of Bar
A solid conical bar of circular cross-section is suspended vertically as shown in the figure. The diameter of the bar at the base, D, equals 100 mm and its length, L is 0.5 m. If E = 200 GN/m2 and its weight per unit volume is 80 kN/m3,the elongation of the bar under self-weight is
1
1.50 × 10-6 mm
2
1.67 × 10-5 mm
3
1.71 × 10-6 mm
4
1.87 × 10-5 mm