When two plates are butt together and riveted with cover plates with two rows of rivets, the joint is known as
A. Lap joint
B. Butt joint
C. Single riveted single cover butt joint
D. Double riveted double cover butt joint
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A cylindrical section having no joint is known as
A. Joint less section
B. Homogeneous section
C. Perfect section
D. Seamless section
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When one plate overlaps the other and the two plates are riveted together with two rows of rivets, the joint is known as
A. Single riveted lap joint
B. Double riveted lap joint
C. Double riveted single cover butt joint
D. Double riveted double cover butt joint
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The distance between the centers of the rivets in adjacent rows of zigzag riveted joint is known as
A. Pitch
B. Back pitch
C. Diagonal pitch
D. Diametric pitch
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A riveted joint may fail by
A. Tearing of the plate at an edge
B. Tearing of the plate across a row of rivets
C. Shearing of rivets
D. Any one of these
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The load at which the column just buckles, is known as
A. Buckling load
B. Critical load
C. Crippling load
D. Any one of these
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A thin mild steel wire is loaded by adding loads in equal increments till it breaks. The extensions noted with increasing loads will behave as under
A. Uniform throughout
B. Increase uniformly
C. First increase and then decrease
D. Increase uniformly first and then increase rapidly
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A body is subjected to a direct tensile stress (σ) in one plane. The shear stress is maximum at a section inclined at __________ to the normal of the section.
A. 45° and 90°
B. 45° and 135°
C. 60° and 150°
D. 30° and 135°
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When a body is subjected to a direct tensile stress (σ) in one plane, then maximum normal stress occurs at a section inclined at _________ to the normal of the section.
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The maximum deflection of a fixed beam of length l carrying a central point load W is
A. 48 E I W l 3
B. 96 E I W l 3
C. 192 E I W l 3
D. 384 E I W l 3
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The longitudinal stress in a riveted cylindrical shell of diameter (d), thickness (t) and subjected to an internal pressure (p) is
A. t η pd
B. 2 t η pd
C. 4 t η pd
D. 8 t η pd
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The maximum shear stress in a thin cylindrical shell subjected to internal pressure 'p' is
A. t pd
B. 2 t pd
C. 4 t pd
D. 8 t pd
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The Rankine's formula holds good for
A. Short columns
B. Long columns
C. Both short and long columns
D. Weak columns
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Euler's formula holds good only for
A. Short columns
B. Long columns
C. Both short and long columns
D. Weak columns
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The stress induced in a body due to suddenly applied load compared to when it is applied gradually is
A. Same
B. Half
C. Two times
D. Four times
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The strain energy stored in a body due to suddenly applied load compared to when it is applied gradually is
A. Same
B. Twice
C. Four times
D. Eight times
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The energy stored in a body when strained within elastic limit is known as
A. Resilience
B. Proof resilience
C. Strain energy
D. Impact energy
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The ratio of lateral strain to the linear strain within elastic limit is known as
A. Young's modulus
B. Bulk modulus
C. Modulus of rigidity
D. Poisson's ratio
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A concentrated load is one which
A. Acts at a point on a beam
B. Spreads non-uniformly over the whole length of a beam
C. Spreads uniformly over the whole length of a beam
D. Varies uniformly over the whole length of a beam
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The strain energy stored in a body due to shear stress, is (where τ = Shear stress, C = Shear modulus and V = Volume of the body)
A. 2 C τ V
B. τ V 2 C
C. 2 C τ 2 V
D. τ 2 V 2 C
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