All Courses
Get the App Signup / Login
Sign in Open App
Mechanical Engineering Exam  >  Mechanical Engineering Tests  >  Test: Principal Stresses & Theories Of Elastic Failure - Mechanical Engineering MCQ

Test: Principal Stresses & Theories Of Elastic Failure - Mechanical Engineering MCQ


Test Description

10 Questions MCQ Test - Test: Principal Stresses & Theories Of Elastic Failure

Test: Principal Stresses & Theories Of Elastic Failure for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Test: Principal Stresses & Theories Of Elastic Failure questions and answers have been prepared according to the Mechanical Engineering exam syllabus.The Test: Principal Stresses & Theories Of Elastic Failure MCQs are made for Mechanical Engineering 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Principal Stresses & Theories Of Elastic Failure below.
Solutions of Test: Principal Stresses & Theories Of Elastic Failure questions in English are available as part of our course for Mechanical Engineering & Test: Principal Stresses & Theories Of Elastic Failure solutions in Hindi for Mechanical Engineering course. Download more important topics, notes, lectures and mock test series for Mechanical Engineering Exam by signing up for free. Attempt Test: Principal Stresses & Theories Of Elastic Failure | 10 questions in 20 minutes | Mock test for Mechanical Engineering preparation | Free important questions MCQ to study for Mechanical Engineering Exam | Download free PDF with solutions
Test: Principal Stresses & Theories Of Elastic Failure - Question 1
Save

The normal stress is perpendicular to the area under considerations, while the shear stress acts over the area.

Detailed Solution for Test: Principal Stresses & Theories Of Elastic Failure - Question 1

Explanation: This is the convention used.

Test: Principal Stresses & Theories Of Elastic Failure - Question 2
Save

If a body is subjected to stresses in xy plane with stresses of 60N/mm² and 80N/mm² acting along x and y axes respectively. Also the shear stress acting is 20N/mm²Find the maximum amount of shear stress to which the body is subjected.

Detailed Solution for Test: Principal Stresses & Theories Of Elastic Failure - Question 2

Explanation: τ(max)=√( [σ(x)-σ(y) ]²/2² + τ²).

1 Crore+ students have signed up on EduRev. Have you? Download the App
Test: Principal Stresses & Theories Of Elastic Failure - Question 3
Save

 If a body is subjected to stresses in xy plane with stresses of 60N/mm² and 80N/mm² acting along x and y axes respectively. Also the shear stress acting is 10N/mm². Find the inclination of the plane in which shear stress is maximal.

Detailed Solution for Test: Principal Stresses & Theories Of Elastic Failure - Question 3

Explanation: tan (2Ǿ)=2τ/[σ(x) – σ(y)].

Test: Principal Stresses & Theories Of Elastic Failure - Question 4
Save

 If a body is subjected to stresses in xy plane with stresses of 60N/mm² and 80N/mm² acting along x and y axes respectively. Also the shear stress acting is 20N/mm². Find the maximum normal stress.
Detailed Solution for Test: Principal Stresses & Theories Of Elastic Failure - Question 4

Explanation: σ=[σ(x) +σ(y)]/2 + √( [σ(x)-σ(y) ]²/2² + τ²).

Test: Principal Stresses & Theories Of Elastic Failure - Question 5
Save

If a body is subjected to stresses in xy plane with stresses of 60N/mm² and 80N/mm² acting along x and y axes respectively. Also the shear stress acting is 20N/mm². Find the minimum normal stress.
Detailed Solution for Test: Principal Stresses & Theories Of Elastic Failure - Question 5

Explanation: σ=[σ(x) +σ(y)]/2 – √( [σ(x)-σ(y) ]²/2² + τ²).

Test: Principal Stresses & Theories Of Elastic Failure - Question 6
Save

If compressive yield stress and tensile yield stress are equivalent, then region of safety from maximum principal stress theory is of which shape?
Detailed Solution for Test: Principal Stresses & Theories Of Elastic Failure - Question 6

Explanation: The equation of four lines is given by σ1=± S(yt), σ2=±S(yc) Now given S(yt)=S(yc), hence the region of safety is of square shape.

Test: Principal Stresses & Theories Of Elastic Failure - Question 7
Save

Maximum Principal Stress Theory is not good for brittle materials.
Detailed Solution for Test: Principal Stresses & Theories Of Elastic Failure - Question 7

Explanation: Experimental investigations have shown that maximum principle stress theory gives good results for brittle materials.

Test: Principal Stresses & Theories Of Elastic Failure - Question 8
Save

The region of safety in maximum shear stress theory contains which of the given shape
Detailed Solution for Test: Principal Stresses & Theories Of Elastic Failure - Question 8

Explanation: In maximum shear stress theory we have the following equations: σ1= ±S(yt)
σ2= ±S (yt), σ1 – σ2 =±S (yt) assuming S(yt)=S(yc).

Test: Principal Stresses & Theories Of Elastic Failure - Question 9
Save

The total strain energy for a unit cube subjected to three principal stresses is given by? 
Detailed Solution for Test: Principal Stresses & Theories Of Elastic Failure - Question 9

Explanation: U= [(σέ) ₁ + (σέ) ₂+ (σέ) ₃]/2 is the basic formula. After substituting values of έ₁, έ₂ and έ₃, we get the expression b.

Test: Principal Stresses & Theories Of Elastic Failure - Question 10
Save

Distortion energy theory is slightly liberal as compared to maximum shear stress theory.
Detailed Solution for Test: Principal Stresses & Theories Of Elastic Failure - Question 10

Explanation: The hexagon of maximum shear theory falls completely inside the ellipse of distortion energy theorem.

Information about Test: Principal Stresses & Theories Of Elastic Failure Page
In this test you can find the Exam questions for Test: Principal Stresses & Theories Of Elastic Failure solved & explained in the simplest way possible. Besides giving Questions and answers for Test: Principal Stresses & Theories Of Elastic Failure, EduRev gives you an ample number of Online tests for practice

Top Courses for Mechanical Engineering

Download as PDF

Top Courses for Mechanical Engineering

Important Questions for Principal Stresses & Theories Of Elastic Failure

Find all the important questions for Principal Stresses & Theories Of Elastic Failure at EduRev.Get fully prepared for Principal Stresses & Theories Of Elastic Failure with EduRev's comprehensive question bank and test resources. Our platform offers a diverse range of question papers covering various topics within the Principal Stresses & Theories Of Elastic Failure syllabus. Whether you need to review specific subjects or assess your overall readiness, EduRev has you covered. The questions are designed to challenge you and help you gain confidence in tackling the actual exam. Maximize your chances of success by utilizing EduRev's extensive collection of Principal Stresses & Theories Of Elastic Failure resources.

Principal Stresses & Theories Of Elastic Failure MCQs with Answers

Prepare for the Principal Stresses & Theories Of Elastic Failure within the Mechanical Engineering exam with comprehensive MCQs and answers at EduRev. Our platform offers a wide range of practice papers, question papers, and mock tests to familiarize you with the exam pattern and syllabus. Access the best books, study materials, and notes curated by toppers to enhance your preparation. Stay updated with the exam date and receive expert preparation tips and paper analysis. Visit EduRev's official website today and access a wealth of videos and coaching resources to excel in your exam.

Online Tests for Principal Stresses & Theories Of Elastic Failure

Practice with a wide array of question papers that follow the exam pattern and syllabus. Our platform offers a user-friendly interface, allowing you to track your progress and identify areas for improvement. Access detailed solutions and explanations for each test to enhance your understanding of concepts. With EduRev's Online Tests, you can build confidence, boost your performance, and ace Principal Stresses & Theories Of Elastic Failure with ease. Join thousands of successful students who have benefited from our trusted online resources.
© EduRev
Education Revolution
Follow Us
Signup to see your scores go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup