Gear Institute

Login

ยท

ยท

Strength of Material MCQ Set 9

เคนเคฐ Government Jobs เค•เฅ€ update เค•เฅ‡ เคฒเคฟเค เคœเฅเคกเคผเฅ‡เค‚

JOIN WHATS APP GROUPCLICK HERE
JOIN TELEGRAM GROUPCLICK HERE
SUBSCRIBE YOUTUBE CHANNELCLICK HERE
image_printDownload this pdf

STRENGTH OF MATERIAL MCQ SET 9

Q1. Rankineโ€™s formula combines the effect of:

A) Bending and torsion
B) Direct stress and bending
C) Crushing and buckling
D) Shear and torsion

Show Answer

Answer: C) Crushing and buckling
Explanation: Rankineโ€™s formula is a semi-empirical relation covering both short and long column failures.

Q2. The unit of strain energy is:

A) N/m
B) N/mยฒ
C) Joule
D) N

Show Answer

Answer: C) Joule
Explanation: Strain energy is a form of energy stored, hence measured in Joules.

Q3. Strain energy per unit volume is called:

A) Resilience
B) Elasticity
C) Modulus
D) Stiffness

Show Answer

Answer: A) Resilience
Explanation: Resilience = energy stored per unit volume within elastic limit.

Q4. Modulus of resilience is numerically equal to:

A) ฯƒยฒ/2E
B) ฯƒ/E
C) ฯƒยฒ/E
D) 2E/ฯƒยฒ

Show Answer

Answer: A) ฯƒยฒ/2E
Explanation: The area under the linear portion of stress-strain curve gives modulus of resilience.

Q5. The energy stored due to bending in a beam is called:

A) Strain energy
B) Bending energy
C) Torsional energy
D) Deflection energy

Show Answer

Answer: A) Strain energy
Explanation: Bending induces strain energy due to bending stress distribution.

Q6. Thermal stress occurs when:

A) Body is free to expand
B) Body is restrained from expansion
C) Temperature is constant
D) None

Show Answer

Answer: B) Body is restrained from expansion
Explanation: When expansion is restricted, temperature change induces internal stresses.

Q7. The formula for thermal stress is:

A) ฯƒ = Eฮฑฮ”T
B) ฯƒ = ฮฑฮ”T/E
C) ฯƒ = E/ฮฑฮ”T
D) ฯƒ = ฮฑE/ฮ”T

Show Answer

Answer: A) ฯƒ = Eฮฑฮ”T
Explanation: Thermal stress = modulus ร— coefficient of expansion ร— temperature change.

Q8. A composite bar means:

A) Same material
B) Different materials joined together
C) Same cross-section
D) Equal stresses

Show Answer

Answer: B) Different materials joined together
Explanation: Composite bars consist of dissimilar materials rigidly connected to act together.

Q9. In a composite bar under temperature change, the stress depends on:

A) ฮฑ and E of both materials
B) Only ฮฑ
C) Only E
D) None

Show Answer

Answer: A) ฮฑ and E of both materials
Explanation: Both modulus and thermal expansion coefficient affect the induced stresses.

Q10. The shear stress on a plane parallel to principal plane is:

A) Maximum
B) Minimum
C) Zero
D) Infinite

Show Answer

Answer: C) Zero
Explanation: Shear stress on principal planes is always zero.

Recent Posts

Go back

Your message has been sent

Share this post and help your Friends

Leave a Reply

Your email address will not be published. Required fields are marked *

Disclaimer: Any information regarding examination forms, results/scores, answer keys published on this website is provided for the immediate information of the examinees only and should not be considered as a legal document. While the Gear Institute team has made every effort to ensure the accuracy of the information provided including the official links, we are not responsible for any inadvertent error that may appear in the examination results/grades, answer keys or admission schedule/dates. Also, we accept no liability for any loss or damage caused by any deficiency, defect or inaccuracy in the information available on this website. Please contact us through the Contact Us page if you require any correction.

Note: Gear Institute is not a Consultant and will never charge any candidates for Jobs. Please be aware of fraudulent calls or emails.

Top