A beam which is fixed at one end and free at the other is called
A. Simply supported beam
B. Fixed beam
C. Overhanging beam
D. Cantilever beam
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The strain energy stored in a solid circular shaft subjected to shear stress (τ ), is:
(Where, G = Modulus of rigidity for the shaft material)
A. 2 G τ 2 × Volume of shaft
B. 2 G τ × Volume of shaft
C. 4 G τ 2 × Volume of shaft
D. 4 G τ × Volume of shaft
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The strain energy stored in a solid circular shaft in torsion, subjected to shear stress (τ ), is:
(Where, G = Modulus of rigidity for the shaft material)
A. 2 G τ 2 × Volume of shaft
B. 2 G τ × Volume of shaft
C. 4 G τ 2 × Volume of shaft
D. 4G τ × Volume of shaft
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At the neutral axis of a beam, the shear stress is
A. Zero
B. Minimum
C. Maximum
D. Infinity
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Principle plane is a plane on which the shear stress is
A. Zero
B. Minimum
C. Maximum
D. None of these
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The maximum deflection of a fixed beam of length 'l ' carrying a total load 'W' uniformly distributed over the whole length 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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Two beams, one of circular cross-section and the other of square cross-section, have equal areas of cross-sections. When these beams are subjected to bending,
A. Both beams are equally economical
B. Square beam is more economical
C. Circular beam is more economical
D. None of these
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In a belt drive, the pulley diameter is doubled, the belt tension and pulley width remaining same. The changes required in key will be
A. Increase key length
B. Increase key depth
C. Increase key width
D. Double all the dimensions
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In a tensile test, when the material is stressed beyond elastic limit, the tensile strain __________ as compared to the stress.
A. Decreases slowly
B. Increases slowly
C. Decreases more quickly
D. Increases more quickly
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For a beam, as shown in the below figure, the maximum deflection lies at
A. 3 l from B
B. 3 l from A
C. D. Select an option to see the answer and solution.
The ratio of elongation in a prismatic bar due to its own weight (W) as compared to another similar bar carrying an additional weight (W) will be
A. 1 : 2
B. 1 : 3
C. 1 : 4
D. 1 : 2.5
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Which of the following statement is correct?
A. The energy stored in a body, when strained within elastic limit is known as strain energy.
B. The maximum strain energy which can be stored in a body is termed as proof resilience.
C. The proof resilience per unit volume of a material is known as modulus of resilience.
D. All of the above
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Which of the following statement is correct?
A. A continuous beam has only two supports at the ends
B. A uniformly distributed load spreads uniformly over the whole length of a beam
C. The bending moment is maximum where shear force is maximum
D. The maximum bending moment of a simply supported beam of length l with a central point load W is 8 W l
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Which of the following statement is correct?
A. The size of hole drilled in riveting plates is less than the actual size of rivet.
B. The center to center distance between two consecutive rivets in a row is called margin.
C. Rivets are generally specified by its shank diameter.
D. Tearing of plates can be avoided by taking the pitch of rivets equal to 1.5 times the diameter of rivet hole.
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Which of the following statement is correct?
A. The stress is the pressure per unit area
B. The strain is expressed in mm
C. Hook's law holds good up to the breaking point
D. Stress is directly proportional to strain within elastic limit
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The bending moment at a section tends to bend or deflect the beam and the internal stresses resist its bending. The resistance offered by the internal stresses, to the bending, is called
A. Compressive stress
B. Shear stress
C. Bending stress
D. Elastic modulus
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The stress developed in the material without any permanent set is called
A. Elastic limit
B. Yield stress
C. Ultimate stress
D. Breaking stress
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The maximum bending moment of a simply supported beam of span l and carrying a point load W at the center of beam, is
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In the below figure, __________ represents glass.
A. Curve A
B. Curve B
C. Curve C
D. Curve D
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According to Euler's column theory, the crippling load for a column of length (l ) with one end fixed and the other end hinged, is
A. l 2 π 2 E I
B. 4 l 2 π 2 E I
C. l 2 2 π 2 E I
D. l 2 4 π 2 E I
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