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.Management Sciences
Category: Theory of Structures
d constant, the width of a cantilever of length l of uniform strength loaded with Keeping the depth a uniformly distributed load w varies from zero at the free end and________________?
A. (2w/ × l² at the fixed end
B. (3w/ × l² at the fixed end
C. (3w/ × l² at the fixed end
D. (5w/ × l² at the fixed end
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_________________?
A. 80 N/mm2
B. 100 N/mm 2
C. 120 N/mm2
D. 150 N/mm2
Beams composed of more than one material, rigidly connected together so as to behave as one piece, are known as________________?
A. Compound beams
B. Indeterminate beams
C. Determinate beams
D. Composite beams
The ratio of shear stress and shear strain of an elastic material, is________________?
A. Modulus of Rigidity
B. Shear Modulus
C. Modulus of Elasticity
D. Both A. and B
The general expression for the B.M. of a beam of length l is the beam carries M = (wl/2) x – (wx²/2)_______________?
A. A uniformly distributed load w/unit length
B. A load varying linearly from zero at one end to w at the other end
C. An isolated load at mid span
D. None of these
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_______________?
A. [W (1 + f/ G)]/ A
B. (1 – g/f)/A
C. [W (2 + f/G)]/A
D. [W (2 + g/f)]/A
A close coil helical spring when subjected to a moment M having its axis along the axis of the helix_________________?
A. It is subjected to pure bending
B. Its mean diameter will decrease
C. Its number of coils will increase
D. All the above
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