The shear stress at the center of a circular shaft under torsion is
A. Zero
B. Minimum
C. Maximum
D. Infinity
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The ratio of change in volume to the original volume is called
A. Linear strain
B. Lateral strain
C. Volumetric strain
D. Poisson's ratio
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In order to know whether a column is long or short, we must know its
A. Ultimate shear stress of the column
B. Factor of safety
C. Torque resisting capacity
D. Slenderness ratio
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The shear force and bending moment are zero at the free end of a cantilever beam, if it carries a
A. Point load at the free end
B. Point load at the middle of its length
C. Uniformly distributed load over the whole length
D. None of the above
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When a bar is cooled to -5°C, it will develop
A. No stress
B. Shear stress
C. Tensile stress
D. Compressive stress
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If a part is constrained to move and heated, it will develop
A. Principal stress
B. Tensile stress
C. Compressive stress
D. Shear stress
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The bending stress in abeam is __________ bending moment.
A. Equal to
B. Less than
C. More than
D. Directly proportional to
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When shear force at a point is zero, then bending moment is _________ at that point.
A. Zero
B. Minimum
C. Maximum
D. Infinity
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For long columns, the value of buckling load is __________ crushing load.
A. Equal to
B. Less than
C. More than
D. None of these
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In case of eccentrically loaded struts __________ is preferred.
A. Solid section
B. Hollow section
C. Composite section
D. Reinforced section
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The steel bars in a reinforced cement concrete beam are embedded __________ of the beam.
A. In the center
B. Near the bottom
C. Near the top
D. At any position
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The rivets are used for _________ fastenings.
A. Permanent
B. Temporary
C. Semi-permanent
D. None of these
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The tensile test is carried on __________ materials.
A. Ductile
B. Brittle
C. Malleable
D. Plastic
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The compression test is carried on __________ materials.
A. Ductile
B. Brittle
C. Malleable
D. Plastic
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A welded joint as compared to a riveted joint has __________ strength.
A. Same
B. Less
C. More
D. None of these
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If the slenderness ratio for a column is 100, then it is said to be a _________ column.
A. Long
B. Medium
C. Short
D. None of these
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Whenever a material is loaded within elastic limit, stress is __________ strain.
A. Equal to
B. Directly proportional to
C. Inversely proportional to
D. None of these
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The neutral axis of a beam is subjected to __________ stress.
A. Zero
B. Maximum tensile
C. Minimum tensile
D. Maximum compressive
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The product of Young's modulus (E) and moment of inertia (I) is known as
A. Modulus of rigidity
B. Bulk modulus
C. Flexural rigidity
D. Torsional rigidity
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When a body is subjected to direct tensile stresses (σ x and σ y ) in two mutually perpendicular directions, accompanied by a simple shear stress τ xy , then in Mohr's circle method, the circle radius is taken as
A. 2 σ x − σ y + τ
B. 2 σ x + σ y + τ
C. D. Select an option to see the answer and solution.