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This set of Strength of Materials Multiple Choice Questions & Answers (MCQs) focuses on Strength Of Materials Set 19
Q1 | A beam extending beyond the supports is called
- simply supported beam
- fixed beam
- overhanging beam
- cantilever beam
Q2 | Two shafts 'A' and 'B' are made of same material. The shaft 'A' is solid and has diameter D. The shaft 'B' is hollow with outer diameter D and inner diameter D / 2. The strength of hollow shaft in torsion is
- 1 ? 16
- 1 ? 8
- 1 ? 4
- 15 ? 16
Q3 | The proof resilience per unit volume of a material is known as modulus of resilience.
- True
- False
Q4 | The section modulus of a rectangular section about an axis through its C.G., is
- b / 2
- d / 2
- bd2 / 2
- bd2 / 6
Q5 | The energy stored in a body when strained within elastic limit is known as
- resilience
- proof resilience
- strain energy
- impact energy
Q6 | According to Euler's column theory, the crippling load for a column of length (l) fixed at both ends is
- equal to
- two times
- four times
- eight times
Q7 | A continuous beam is one which is
- fixed at both ends
- fixed at one end and free at the other end
- supported on more than two supports
- extending beyond the supports
Q8 | When two main plates are kept in alignment butting each other and riveted with cover plate on both sides of the main plates with two rows of rivets in each main plate, the joint is known as
- single riveted
- double riveted
Q9 | In order to prevent crushing of masonry at the base of the dam, the maximum stress should be
- equal to
- less than
- more than
Q10 | 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
- compressive stress
- shear stress
- bending stress
- elastic modulus
Q11 | The resultant stress on an inclined plane which is inclined at an angle ? to the normal cross-section of a body which is subjected to a direct tensile stress (?) in one plane, is
- ? sin ?
- ? cos ?
- ? sin2 ?
- ? cos2 ?
Q12 | In compression test, the fracture in cast iron specimen would occur along
- the axis of load
- an oblique plane
- at right angles to the axis of specimen
- would not occur
Q13 | When there is no increase or decrease in shear force between two points, it indicates that there is no change in the bending moment between these points.
- True
- False
Q14 | In a riveted joint, when the number of rivets decreases from the inner most row to outer most row, the joint is said to be
- chain riveted
- zig-zag riveted
- diamond riveted
- none of these
Q15 | In spring balances, the spring is used
- to apply forces
- to measure forces
- to absorb shocks
- to store strain energy
Q16 | When the shear force diagram is a parabolic curve between two points, it indicates that there is a
- point load at the two points
- no loading between the two points
- uniformly distributed load between the two points
- uniformly varying load between the two points
Q17 | Whenever some external system of forces acts on a body, it undergoes some deformation. As the body undergoes some deformation, it sets up some resistance to the deformation. This resistance per unit area to deformation, is called
- strain
- stress
- pressure
- modulus of elasticity
Q18 | The point of contraflexure is a point where
- shear force changes sign
- bending moment changes sign
- shear force is maximum
- bending moment is maximum
Q19 | In the Euler's formula, the value of C for a column with both ends fixed is 4.
- Agree
- Disagree
Q20 | The maximum shear stress is equal to the radius of Mohr's circle.
- Correct
- Incorrect
Q21 | The stress induced in a body, when suddenly loaded, is
- equal to
- one-half
- twice
- four times
Q22 | A beam encastered at both the ends is called
- simply supported beam
- fixed beam
- cantilever beam
- continuous beam
Q23 | When a cantilever beam is loaded at its free end, the maximum compressive stress shall develop at
- bottom fibre
- top fibre
- neutral axis
- centre of gravity
Q24 | A thick pressure vessel is always used for the generation of steam, as it can withstand high pressures.
- True
- False
Q25 | Compression members always tend to buckle in the direction of the
- axis of load
- perpendicular to the axis of load
- minimum cross section
- least radius of gyration