A lap joint is always in _________ shear.
A. Single
B. Double
C. Both A and B
D. None of these
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A pressure vessel is said to be a thin shell when the ratio of wall thickness of the vessel to its diameter is __________ 10 1 .
A. Equal to
B. Less than
C. Greater than
D. None of these
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A simply supported beam with a gradually varying load from zero at ‘B’ and ‘w’ per unit length at ‘A’ is shown in the below figure. The shear force at ‘B’ is equal to
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The columns whose slenderness ratio is less than 80, are known as
A. Short columns
B. Long columns
C. Weak columns
D. Medium columns
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When a bar of length l, width b and thickness t is subjected to a pull of P, its
A. Length, width and thickness increases
B. Length, width and thickness decreases
C. Length increases, width and thickness decreases
D. Length decreases, width and thickness increases
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When a bar of length l, width b and thickness t is subjected to a push of P, its
A. Length, width and thickness increases
B. Length, width and thickness decreases
C. Length increases, width and thickness decreases
D. Length decreases, width and thickness increases
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The center to center distance, between two consecutive rivets in a row, is called
A. Margin
B. Pitch
C. Back pitch
D. Diagonal pitch
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According to Unwin's formula, the relation between diameter of rivet hole (d) and thickness of plate (t) is given by (where d and t are in mm)
A. d = t
B. d = 1.6 t
C. d = 2t
D. d = 6t
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When it is indicated that a member is elastic, it means that when force is applied, it will
A. Not deform
B. Be safest
C. Stretch
D. Not stretch
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In riveted boiler joints, all stresses, shearing, bearing and tensile are based on the
A. Size of rivet
B. Size of the drilled or reamed hole
C. Average of size of rivet and hole
D. Smaller of the two
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Transverse fillet welds are designed for
A. Tensile strength
B. Compressive strength
C. Shear strength
D. Bending strength
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According to Euler's column theory, the crippling load for a column length l hinged at both ends, is
A. l 2 π 2 E I
B. 4 l 2 π 2 E I
C. l 2 4 π 2 E I
D. l 2 2 π 2 E I
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The shear force of a cantilever beam of length l carrying a uniformly distributed load of w per unit length is _________ at the free end.
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The bending moment of a cantilever beam of length l and carrying a uniformly distributed load of w per unit length is __________ at the free end.
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If percentage reduction in area of a certain specimen made of material 'A' under tensile test is 60% and the percentage reduction in area of a specimen with same dimensions made of material 'B' is 40%, then
A. The material A is more ductile than material B
B. The material B is more ductile than material A
C. The ductility of material A and B is equal
D. The material A is brittle and material B is ductile
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The section modulus (Z) of a beam is given by
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The maximum strain energy that can be stored in a body is known as
A. Impact energy
B. Resilience
C. Proof resilience
D. Modulus of resilience
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The extremities of any diameter on Mohr's circle represent
A. Principal stresses
B. Normal stresses on planes at 45°
C. Shear stresses on planes at 45°
D. Normal and shear stresses on a plane
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A coil is cut into two halves, the stiffness of cut coil will be
A. Double
B. Half
C. Same
D. None of these
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When a rectangular beam is loaded transversely, the maximum tensile stress is developed on the
A. Top layer
B. Bottom layer
C. Neutral axis
D. Every cross-section
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