Q. The planes, which carry no shear stress, are known as principal planes.

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Q. The stiffness of a closely-coiled helical spring is __________ proportional to number of turns.

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Q. The maximum bending moment of a simply supported beam of span l and carrying a point load W at the centre of beam, is

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Q. A column of length (l) with both ends fixed may be considered as equivalent to a column of length __________ with one end fixed and the other end free.

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Q. For biaxial stress, the planes of maximum shear are at right angles to each other and are inclined at 45° to the principal planes.

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Q. For the two shafts connected in parallel and subjected to twisting moment, the angle of twist of each shaft will be same.

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Q. For a shaft, the shear stress at a point is __________ the distance from the axis of the shaft.

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Q. A spring used to absorb shocks and vibrations is

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Q. The shear stress at the centre of a circular shaft under torsion is

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Q. At the neutral axis of a beam, the shear stress is

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Q. A beam of triangular section is placed with its base horizontal. The maximum shear stress occurs at

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Q. When a body is subjected to a direct tensile stress (σ) in one plane, then normal stress on an oblique section of the body inclined at an angle θ to the normal of the section is

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Q. The columns whose slenderness ratio is less than 80, are known as

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Q. The equivalent length, of a given column with given end conditions, is the length of an equivalent column of the same material and cross-section with hinged ends, and having the value of crippling load equal to that of the given column.

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Q. Within elastic limit, shear stress is __________ shear strain.

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Q. For a given stress, the ratio of moment of resistance of a beam of square cross-section when placed with its two sides horizontal to the moment of resistance with its diagonal horizontal, is

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Q. The Young's modulus of a material is 125 GPa and Poissons ratio is 0.25. The modulus of rigidity of me material is

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Q. If the modulus of elasticity for a given material is twice its modulus of rigidity, then bulk modulus is equal to

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Q. A simply supported beam 'A' of length l, breadth b and depth d carries a central point load W. Another bream 'B' has the same length and breadth but its depth is doubled. The deflection of beam 'B' will be double as compared to beam 'A'.

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Q. In a beam of uniform strength, the bending stress developed is constant and is equal to the allowable stress at every section of the beam.

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