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MCQs 1: In the relation ( T/J = Gθ/L = τ/ R), the letter G denotes modulus of ______

elasticity plasticity rigidity resilience
Answer Explanation

MCQs 2: Which of the following relation represents torsional flexibility?

GJ GL GJ / L L / GJ
Answer Explanation

MCQs 3: Stress in the cross section of a shaft at the centre ________

is zero decreases linearly to the maximum value of at outer surface both a. and b. none of the above
Answer Explanation

MCQs 4: The ratio of effective length and least lateral dimension for short column is _______

> 12 < 12 ≥ 12 none of the above
Answer Explanation

MCQs 5: Slenderness ratio is the ratio of effective length of column and ________

lateral dimension of a column least radius of gyration of a column maximum radius of gyration of a column none of the above
Answer Explanation

MCQs 6: Principal stress is the magnitude of ________ stress acting on the principal plane.

Normal stress Shear stress Both a. and b. None of the above
Answer Explanation

MCQs 7: Which of the following stresses can be determined using Mohr's circle method?

Torsional stress Bending stress Principal stress All of the above
Answer Explanation

MCQs 8: The graphical method of Mohr's circle represents shear stress (τ) on ______

X-axis Y-axis Z-axis None of the above
Answer Explanation

MCQs 9: In Mohr's circle method, compressive direct stress is represented on ____

positive x-axis positive y-axis negative x-axis negative y-axis
Answer Explanation

MCQs 10: St. Venant's theory is also known as maximum _________

principle stress theory shear stress theory principle strain theory strain energy theory
Answer Explanation

MCQs 11: According to Coulomb's theory, material subjected to complex stresses fails, if ________ shear stress induced in the material exceeds _______ shear stress at the yield point.

minimum, maximum maximum, minimum maximum, maximum minimum, minimum
Answer Explanation

MCQs 12: In simple tensile test, when maximum principle stress reaches the value of yield point, the material subjected to complex stresses fail. This theory is called as ________.

Coulumb's theory Rankine's theory Venant's theory Von Mises theory
Answer Explanation

MCQs 13: Which theory gives satisfactory results for brittle materials?

Maximum shear stress theory Maximum principle stress theory Shear strain energy theory None of the above
Answer Explanation

MCQs 14: Modulus of rigidity is the ratio of ______

Lateral strain and linear strain Linear stress and lateral strain Shear stress and shear strain Shear strain and shear stress
Answer Explanation

MCQs 15: The relation between modulus of elasticity (E), modulus of rigidity (G) and bulk modulus (K) is given as ________

K+G / (3K+ G) 3 KG / (3K+ G) 3 KG / (9K+ G) 9 KG / (3K+ G)
Answer Explanation

MCQs 16: The value of elasticity increases, when temperature _____

increases decreases remains constant none of the above
Answer Explanation

MCQs 17: If a composite bar of copper and steel is heated at 120° C, the stress induced in copper bar is _______

compressive stress shear stress tensile stress thermal stress
Answer Explanation

MCQs 18: Thermal stress is not a function of _____

change in temperature coefficient of linear expansion modulus of elasticity none of the above
Answer Explanation

MCQs 19: The graphical representation of variation of axial load on y axis and position of cross section along x axis is called as _____

Bending moment diagram Shear force diagram Stress-strain diagram Trust diagram
Answer Explanation

MCQs 20: What is the product of sectional modulus and allowable bending stress called as?

Moment of inertia Moment of rigidity Moment of resistance Radius of gyration
Answer Explanation

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