Q.1
The change in the unit volume of a material under tension with increase in its Poisson's ratio will
Q.2
A rod is enclosed centrally in a tube and the assembly is tightened by rigid washers. If the assembly is subjected to a compressive load, then
Q.3
A composite bar made up of steel and copper bars of equal lengths are heated through 100°C. The stresses developed shall be
Q.4
The extension of a circular bar tapering uniformly from diameter d₁ at one end to diameter d₂ at the other end and subjected to an axial pull of ‘P’ is given by
Q.5
The polar moment of inertia of a solid circular shaft of diameter (D) is
Q.6
The strain energy stored in a body due to suddenly applied load compared to when it is applied gradually is
Q.7
The energy stored in a body when strained within elastic limit is known as
Q.8
The polar modulus for a solid shaft of diameter (D) is
Q.9
The ratio of lateral strain to the linear strain within elastic limit is known as
Q.10
A concentrated load is one which
Q.11
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)
Q.12
Two solid shafts 'A' and 'B' are made of the same material. The shaft 'A' is of 50 mm diameter and shaft 'B' is of 100 mm diameter. The strength of shaft 'B' is _________ as that of shaft A.
Q.13
For no tension condition in the base of a short column of circular section, the line of action of the load should be within a circle of diameter equal to __________ of the main circle.
Q.14
The volumetric strain is the ratio of the
Q.15
The neutral axis of the cross-section a beam is that axis at which the bending stress is
Q.16
The neutral axis of the cross-section of a beam is that axis at which the bending stress is
Q.17
After reaching the yielding stage while testing a mild steel specimen, strain
Q.18
The load required to produce a unit deflection in a spring is called
Q.19
The ratio of the lateral strain to the linear strain is called
Q.20
The ratio of linear stress to the linear strain is called
Q.21
The elongation of a conical bar under its own weight is __________ that of prismatic bar of the same length.
Q.22
The extension of a circular bar tapering uniformly from diameter d₁ at one end to diameter d₂ at the other end, and subjected to an axial pull of P is _________ the extension of a circular bar of diameter d₁ d₂ subjected to the same load P.
Q.23
The torque transmitted by a solid shaft of diameter (D) is (where τ = Maximum allowable shear stress)
Q.24
The torque transmitted by a hollow shaft of outer diameter (d₁) and inner diameter (d2) is (where, τ = Maximum allowable shear stress)
Q.25
When a closely-coiled helical spring of mean diameter (D) is subjected to an axial load (W), the deflection of the spring (δ) is given by (where d = Diameter of spring wire, n = No. of turns of the spring, and C = Modulus of rigidity for the spring material)
Q.26
The value of Poisson's ratio for steel is between
Q.27
The force acting along the circumference will cause stress in the walls in a direction normal to the longitudinal axis of cylinder? This stress is called
Q.28
A beam of triangular section is placed with its base horizontal. The maximum shear stress occurs at
Q.29
The intensity of stress which causes unit strain is called
Q.30
The maximum bending moment for the beam shown in the below figure, is
Strength of Materials mcq question image
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