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MCQs

Total Questions : 90 | Page 2 of 9 pages
Question 11. A tensile test was conducted on a steel bar. The gauge length of the bar was 10cm and the extension was 2mm. What will be the percentage elongation?
  1.    0.002
  2.    0.02
  3.    0.2
  4.    2
 Discuss Question
Answer: Option D. -> 2
Answer: (d).2
Question 12. A solid cube is subjected to equal normal forces on all its faces. The volumetric strain will be x-times the linear strain in any of the three axes when?
  1.    X=1
  2.    X=2
  3.    X=3
  4.    X=4
 Discuss Question
Answer: Option C. -> X=3
Answer: (c).X=3
Question 13. Which of the following is not the unit of distance?
  1.    Angstrom
  2.    Light year
  3.    Micron
  4.    Milestone
 Discuss Question
Answer: Option D. -> Milestone
Answer: (d).Milestone
Question 14. The unit of force in S.I. units is ?
  1.    Kilogram
  2.    Newton
  3.    Watt
  4.    Dyne
 Discuss Question
Answer: Option B. -> Newton
Answer: (b).Newton
Question 15. The lateral strain is ___________
  1.    The ratio of axial deformation to the original length
  2.    The ratio of deformation in area to the original area
  3.    The strain at right angles to the direction of applied load
  4.    The ratio of length of body to the tensile force applied on it
 Discuss Question
Answer: Option C. -> The strain at right angles to the direction of applied load
Answer: (c).The strain at right angles to the direction of applied load
Question 16. Which law is also called as the elasticity law?
  1.    Bernoulli’s law
  2.    Stress law
  3.    Hooke’s law
  4.    Poisson’s law
 Discuss Question
Answer: Option C. -> Hooke’s law
Answer: (c).Hooke’s law
Question 17. As the elastic limit reaches, tensile strain __________
  1.    Increases more rapidly
  2.    Decreases more rapidly
  3.    Increases in proportion to the stress
  4.    Decreases in proportion to the stress
 Discuss Question
Answer: Option A. -> Increases more rapidly
Answer: (a).Increases more rapidly
Question 18. A member which does not regain its original shape after removal of the load producing deformation is said __________
  1.    Plastic
  2.    Elastic
  3.    Rigid
  4.    None of the mentioned
 Discuss Question
Answer: Option A. -> Plastic
Answer: (a).Plastic
Question 19. The materials which have the same elastic properties in all directions are called __________
  1.    Isotropic
  2.    Brittle
  3.    Homogeneous
  4.    Hard
 Discuss Question
Answer: Option A. -> Isotropic
Answer: (a).Isotropic
Question 20. The body will regain it is previous shape and size only when the deformation caused by the external forces, is within a certain limit. What is that limit?
  1.    Plastic limit
  2.    Elastic limit
  3.    Deformation limit
  4.    None of the mentioned
 Discuss Question
Answer: Option B. -> Elastic limit
Answer: (b).Elastic limit

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