Q. The shear force at a certain point on a beam changes sign from +ve value to -ve value or vice versa. The bending moment at that point will be zero.

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Q. In a riveted joint, when the number of rivets decreases from the inner most row to outer most row, the joint is said to be

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Q. A body is subjected to a direct tensile stress of 300 MPa in one plane accompanied by a simple shear stress of 200 MPa. The minimum normal stress will be

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Q. The polar modulus for a hollow shaft of outer diameter (D) and inner diameter (d) is

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Q. The ratio of linear stress to the linear strain is called

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Q. A riveted joint may fail by

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Q. Which of the following is a proper sequence?

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Q. The neutral axis of a beam is subjected to __________ stress.

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Q. When a load on the free end of a cantilever beam is increased, failure will occur

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Q. The length of a conical bar is l, diameter of base is d and weight per unit volume is w. It is fixed at its upper end and hanging freely. The elongation of the bar under the action of its own weight will be

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Q. A pressure vessel is said to be a thin shell when the ratio of wall thickness of the vessel to its diameter is __________ 1/10.

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Q. According to Euler's column theory, the crippling load of a column is given by p = π2 EI/Cl2. In the Euler's formula, the value of C for a column with one end fixed and the other end hinged, is 1/2.

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Q. A tensile test is performed on a mild steel round bar. Its diameter after fracture will

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Q. Two closely coiled helical springs 'A' and 'B' are equal in all respects but the diameter of wire of spring 'A' is double that of spring 'B' The stiffness of spring 'B' will be __________ that of spring 'A'

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Q. When a closely-coiled helical spring of mean diameter (D) is subjected to an axial load (W), the stiffness of the spring is given by

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Q. A leaf spring is supported at the

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Q. In leaf springs, the maximum bending stress developed in the plates is (where W = Load acting on the spring, l = Span of the spring, n = Number of plates, b = Width of plates, and t = Thickness of plates)

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Q. The unit of stress in S.I. units is

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Q. The modulus of elasticity for mild steel is approximately equal to

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Q. The Rankine's formula holds good for

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