Questions and answers for exam Preparation

MCQs

Total Questions : 98 | Page 2 of 10 pages

Question 11. Which test is conducted to measure the endurance limit of the material?

Creep test
Fatigue test
Compression test
Hardness test

Discuss Question

Answer: Option B. -> Fatigue test
Answer: (b).Fatigue test

Question 12. What is the factor of safety?

The ratio of total stress to the permissible stress
The ratio of ultimate stress to the permissible stress
The ratio of ultimate stress to the applied stress
The ratio of ultimate stress to the modulus of elasticity

Discuss Question

Answer: Option B. -> The ratio of ultimate stress to the permissible stress
Answer: (b).The ratio of ultimate stress to the permissible stress

Question 13. What is the process of heating the metal in the furnance to a temperature slightly above the upper critical temperature and cooling slowly In the furnance.

Quenching
Tampering
Annealing
Normalizing

Discuss Question

Answer: Option C. -> Annealing
Answer: (c).Annealing

Question 14. What is the process in which the metal is cooled rapidly in water after heating the metal above the lower critical temperature to increase the hardness of the material?

Quenching
Tampering
Hardening
Annealing

Discuss Question

Answer: Option A. -> Quenching
Answer: (a).Quenching

Question 15. Photo stress method is ___________

Stress analysis method
Creep test
Ultra violet test
None of the mentioned

Discuss Question

Answer: Option A. -> Stress analysis method
Answer: (a).Stress analysis method

Question 16. A composite bar of two sections of equal length and equal diameter is under an axial pull of 10kN. What will be the stresses in the two sections?

3.18 N/mm²
2.21 N/mm²
3.45 N/mm²
2.14 N/mm²

Discuss Question

Answer: Option A. -> 3.18 N/mm²
Answer: (a).3.18 N/mm²

Question 17. A composite bar of two sections of equal length and given diameter is under an axial pull of 15kN. What will be the stresses in the two sections in N/mm²?

190.9 and 84.88
190.9 and 44.35
153.45 and 84088
153045 and 44.35

Discuss Question

Answer: Option A. -> 190.9 and 84.88
Answer: (a).190.9 and 84.88

Question 18. A composite bar of two sections of unequal length and equal diameter is under an axial pull of 10kN. What will be the stresses in the two sections?

2.145 N/mm²
3.18 N/mm²
1.245 N/mm²
2.145 N/mm²

Discuss Question

Answer: Option B. -> 3.18 N/mm²
Answer: (b).3.18 N/mm²

Question 19. Which law states the when a number of loads are acting on a body, the resulting strain, according to principle of superposition, will be the algebraic sum of strains caused by individual loads?

Hooke’s law
Principle of superposition
Lami’s theorem
Strain law

Discuss Question

Answer: Option B. -> Principle of superposition
Answer: (b).Principle of superposition

Question 20. How the total strain in any body subjected to different loads at different sections can be calculated?

The resultant strain is the algebraic sum of the individual strain
The resultant strain calculated by the trigonometry
The resultant will be through Lame’s theorem
None of the mentioned

Discuss Question

Answer: Option A. -> The resultant strain is the algebraic sum of the individual strain
Answer: (a).The resultant strain is the algebraic sum of the individual strain