1. Stress may be expressed in Newtons
2. Pick up the correct statement from the following:
3. The locus of the moment of inertia about inclined axes to the principal axis, is
4. The point of contraflexure is the point where
5. A lift of weight W is lifted by a rope with an acceleration f. If the area of cross-section of the rope is A, the stress in the rope is
6. If a solid shaft (diameter 20 cm, length 400 cm, N = 0.8 × 105 N/mm2) when subjected to a twisting moment, produces maximum shear stress of 50 N/mm2, the angle of twist in radians, is
7. The ratio of shear stress and shear strain of an elastic material, is
8. A steel plate d × b is sandwiched rigidly between two timber joists each D × B/2 in section. The moment of resistance of the beam for the same maximum permissible stress $$\sigma $$ in timber and steel will be (where Young's modulus of steel is m times that of the timber).
9. An isolated load W is acting at a distance a from the left hand support, of a three hinged arch of span 2$$l$$ and rise h hinged at the crown, the horizontal reaction at the support, is
10. A spring of mean radius 40 mm contains 8 action coils of steel (N = 80000 N/mm2), 4 mm in diameter. The clearance between the coils being 1 mm when unloaded, the minimum compressive load to remove the clearance, is
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