Strength of Materials Questions and Answers – Stress due to Materials Used and Their Applications

This set of Strength of Materials Multiple Choice Questions & Answers (MCQs) focuses on “Stress due to Materials Used and Their Applications”.

1. Which test is conducted to measure the ability of a material to resist scratching, abrasion, deformation and indentation?
a) Creep test
b) Fatigue test
c) Hardness test
d) Compression test
View Answer

Answer: c
Explanation: The ability of a material to resist scratching, abrasion, deformation and indentation is called hardness. So to measure this hardness test is used. it is generally expressed by Brinell, Rockwell or Vickers hardness numbers.

2. Which test is conducted to measure the endurance limit of the material?
a) Creep test
b) Fatigue test
c) Compression test
d) Hardness test
View Answer

Answer: b
Explanation: The fatigue test is used to design components subjected to varying load. It experimentally determines the endurance limit of the material.

3. 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?
a) Quenching
b) Tampering
c) Hardening
d) Annealing
View Answer

Answer: a
Explanation: Quenching 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. Hardness is achieved during the quenching process depends on the amount of carbon content and cooling rate.
advertisement

4. 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.
a) Quenching
b) Tampering
c) Annealing
d) Normalizing
View Answer

Answer: c
Explanation: Annealing 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. It produces an even grain structure, reduces hardness and increases ductility usually at a reduction of strength.

5. Photo stress method is ___________
a) Stress analysis method
b) Creep test
c) Ultra violet test
d) None of the mentioned
View Answer

Answer: a
Explanation: Photo stress is a widely used full field technique for accurately measuring surface strains to determine the stresses in a part or structure during static of dynamic testing.
Free 30-Day Python Certification Bootcamp is Live. Join Now!

6. What is the factor of safety?
a) The ratio of total stress to the permissible stress
b) The ratio of ultimate stress to the permissible stress
c) The ratio of ultimate stress to the applied stress
d) The ratio of ultimate stress to the modulus of elasticity
View Answer

Answer: b
Explanation: The ratio of ultimate stress to the permissible or working stress is called the factor of safety. This factor of safety is kept in mind in designing any structure.

7. Which one of the following has the largest value of thermal coefficient?
a) Brass
b) Copper
c) Steel
d) Aluminium
View Answer

Answer: d
Explanation: Aluminium has the large value of thermal coefficient among them of value 24 x 10-6. whereas brass and copper has 19×10-6 and 17×10.

8. Identify which factor may cause a lowered body temperature:
a) Infection
b) Stress
c) Shock
d) Exercise
View Answer

Answer: c
Explanation: Shock can cause the body temperature to drop, and so the cause of shock must be found. Other factors that can cause a lowered body temperature include: very young/old, serious haemorrhage, recovery from anesthesis and poisons.

Sanfoundry Global Education & Learning Series – Strength of Materials.

advertisement

To practice all areas of Strength of Materials, here is complete set of 1000+ Multiple Choice Questions and Answers.

advertisement
advertisement
Subscribe to our Newsletters (Subject-wise). Participate in the Sanfoundry Certification contest to get free Certificate of Merit. Join our social networks below and stay updated with latest contests, videos, internships and jobs!

Youtube | Telegram | LinkedIn | Instagram | Facebook | Twitter | Pinterest
Manish Bhojasia - Founder & CTO at Sanfoundry
I’m Manish - Founder and CTO at Sanfoundry. I’ve been working in tech for over 25 years, with deep focus on Linux kernel, SAN technologies, Advanced C, Full Stack and Scalable website designs.

You can connect with me on LinkedIn, watch my Youtube Masterclasses, or join my Telegram tech discussions.

If you’re in your 40s–60s and exploring new directions in your career, I also offer mentoring. Learn more here.