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(C) central raw. The relationship between Young’s modulus (E), Modulus of rigidity (C) and Bulk modulus (K) is given bya) E=9CK/(C+3K)b) E=9CK/(2C+3K)c) E=9CK/(3C+K)d) E=9CK/(C-3K), Q17. A beam is said to be of uniform strength, if (A) shear stress is the same throughout the beam. Active pressure stretches soil horizontally and exerts tensile force in soil layer. (C) linear strain. By continuing, I agree that I am at least 13 years old and have read and agree to the. A tensile test was conducted on a mild steel bar. (d), 22. A rigid body has Poisson’s ratio equal to…….a) 0b) 1c) Less than 1d) Greater than one. (b), Previous Years GATE Questions on Engineering Materials 2002-2011, Previous Years GATE Questions on Joining Process 2005-2011, Previous Years GATE Questions on Joining Process 2001-2004, Previous Years GATE Questions on Forming Process 2007-2013, Previous Years GATE Questions on Forming Process 2004-2006. (b)   13. Strain is defined as the ratio of (a) change in volume to original volume (b) change in length to original length (c) change in cross-sectional area to original cross-sectional area (d) any one of the above (e) none of the above. Percentage reduction of area in performing tensile test on cast iron may be of the order of__________________? 3. 1. What would happen if batteries are connected in parallel. A rod, 120cm long and of diameter 3.0 cm is subjected to an axial pull of 18 kn. a) Fatigue (A) Momentum and impulse. When a change in length takes place, the strain is known as (A) lateral strain. The ratio of limiting friction and normal reaction is known as (A) coefficient of friction. (a), 8. 2. asked by varuWhat is the difference between Earthing and Grounding? View Answer. The stress in N/mm^2 is a) 22.57 b) 23.47 c) 24.57 d) 25.47. (D) Moment of a force and angular momentum. The value of Poisson’s ratio always remains (A) greater than one. The deformation per unit length is called (A) compressive stress. Ans: d 2. Calculate the amount of strain? d) ii is true but i is false The riveted joint may fail due to (A) Tearing of plates between rivets. D1D2b) 3PL/ΠE. View Answer, 6. i) Strain is a fundamental behaviour of a material. Which of the following do not have identical dimensions? © 2011-2020 Sanfoundry. The stress in N/mm^2 isa) 22.57b) 23.47c) 24.57d) 25.47, Q14. (c)    11. What is the function of a choke in tube light? In mechanics, Poisson’s ratio is the negative of the ratio of transverse strain to lateral or axial strain. Q20. (D) strain. 169. a 51-year-old man suffers an injury to the right shoulder during an automobile accident.