Q. A rod is enclosed centrally in a tube and the assembly is tightened by rigid washers. If the assembly is subjected to a compressive load, then

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Q. A bar of length L metres extends by l mm under a tensile force of P. The strain produced in the bar is

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Q. A shaft revolving at ω rad / s transmits torque (T) in N-m. The power developed is

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Q. The unit of modulus of elasticity is same as those of

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Q. The shear force diagram fora cantilever beam of length l and carrying a gradually varying load from zero at free end and w per unit length at the fixed end is a

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Q. When one plate overlaps the other and the two plates are riveted together with two rows of rivets, the joint is known as

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Q. When a beam is subjected to a bending moment, the strain in a layer is __________ the distance from the neutral axis.

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Q. The thermal or temperature stress is a function of

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Q. The breaking stress is __________ the ultimate stress.

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Q. A bolt is made to pass through a tube and both of them are tightly fitted with the help of washers and nuts. If the nut is tightened, then

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Q. A body is subjected to a tensile stress of 1200 MPa on one plane and another tensile stress of 600 MPa on a plane at right angles to the former. It is also subjected to a shear stress of 400 MPa on the same planes. The minimum normal stress will be

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Q. Which of the following statement is correct?

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Q. In watches, the spring is used to absorb shocks and vibrations.

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Q. The polar moment of inertia of a solid circular shaft of diameter (D) is

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Q. The volumetric strain is the ratio of the

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Q. A thin cylindrical shell of diameter (d), length (l) and thickness (t) is subjected to an internal pressure (p). The ratio of longitudinal strain to hoop strain is

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Q. A simply supported beam of length l is loaded with a uniformly distributed load of w per unit length. The maximum deflection is and lies at the centre of the beam.

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Q. In a thick cylindrical shell subjected to an internal pressure (p), the tangential stress across the thickness of a cylinder is

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Q. A bar of copper and steel form a composite system, which is heated to a temperature of 40°C. The stress induced in the copper bar will be

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Q. Two closely-coiled helical springs 'A' and 'B' of the same matenal, same number of turns and made from same wire are subjected to an axial load W. The mean diameter of spring 'A' is double the mean diameter of spring 'B'. The ratio of deflections in spring 'B' to spring 'A' will be

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