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This set of Strength of Materials Multiple Choice Questions & Answers (MCQs) focuses on Strength Of Materials Set 15
Q1 | The bending moment of a cantilever beam of length l and carrying a uniformly distributed load of w per unit length is
- zero
- wl / 4
- wl / 2
- wl
Q2 | When a beam is subjected to bending moment, the stress at any point is
- equal to
- directly proportional to
- inversely proportional to
- independent of
Q3 | A beam of T-section is subjected to a shear force of F. The maximum shear force will occur at the
- top of the section
- bottom of the section
- neutral axis of the section
- junction of web and flange
Q4 | The planes, which carry no shear stress, are known as principal planes.
- True
- False
Q5 | A masonry dam may fail due to
- tension in the masonry of the dam and its base
- overturning of the dam
- crushing of masonry at the base of the dam
- any one of the above
Q6 | A thin cylindrical shell of diameter (d) length (l) and thickness (t) is subjected to an internal pressure (p). The longitudinal stress in the shell is
- pd / t
- pd / 2t
- pd / 4t
- pd / 6t
Q7 | The proof resilience is the maximum strain energy which can be stored in a body
- Yes
- No
Q8 | A pressure vessel is said to be a thin shell when it is made of thin sheets.
- Agree
- Disagree
Q9 | The distance between the centres of rivets in adjacent rows of zig-zag riveted joint, is called back pitch.
- True
- False
Q10 | A cantilever beam is one which is
- fixed at both ends
- fixed at one end and free at the other end
- supported at its ends
- supported on more than two supports
Q11 | The buckling load for a given column depends upon
- area of cross-section of the column
- length and least radius of gyration of the column
- modulus of elasticity for the material of the column
- all of the above
Q12 | 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
- the material A is more ductile than material B
- the material B is more ductile than material A
- the ductility of material A and B is equal
- the material A is brittle and material B is ductile
Q13 | The springs in brakes and clutches are used to
- to apply forces
- to measure forces
- to store strain energy
- to absorb shocks
Q14 | The maximum shear stress is
- equal to
- one-fourth
- one-half
- twice
Q15 | When a column is subjected to an eccentric load, the stress induced in the column will be
- direct stress only
- bending stress only
- shear stress only
- direct and bending stress both
Q16 | In a thick cylindrical shell subjected to an internal pressure (p), the tangential stress is always a tensile stress where as the radial stress is a compressive stress
- Correct
- Incorrect
Q17 | The bending moment of a cantilever beam of length l and carrying a uniformly distributed load of w per unit length is
- wl / 4
- wl / 2
- wl
- wl2 / 2
Q18 | When a rectangular beam is loaded longitudinally, the shear force develops on the top layer.
- Agree
- Disagree
Q19 | A thin cylindrical shell of diameter (d), length (l) and thickness (t) is subjected to an internal pressure (p). The hoop stress in the shell is
- pd / t
- pd / 2t
- pd / 4t
- pd / 6t
Q20 | A bar of copper and steel form a composite system, which is heated to a temperature of 40?C. The stress induced in the copper bar will be
- tensile
- compressive
- shear
- zero
Q21 | When one plate overlaps the other and the two plates are riveted together with two rows of rivets, the joint is known as
- single riveted lap joint
- double riveted lap joint
- double riveted single cover butt joint
- double riveted double cover butt joint
Q22 | A body is subjected to a tensile stress of 1200 MPa on one plane and another tensile stress of 600 MPa on a plane at right angles to the former. It is also subjected to a shear stress of 400 MPa on the same planes. The maximum normal stress will be
- 400 MPa
- 500 MPa
- 900 MPa
- 1400 MPa
Q23 | A leaf spring is supported at the
- ends and loaded at the centre
- centre and loaded at the ends
- ends and loaded anywhere
- centre and loaded anywhere
Q24 | In a simple bending of beams, the stress in the beam varies
- linearly
- parabolically
- hyperbolically
- elliptically
Q25 | The unit of stress in S.I. units is
- N / mm2
- kN / mm2
- N / m2
- any one of these