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A cube having each side of length a, is constrained in all directions and is heated uniformly so that the temperature is raised to T°C. If α is the thermal coefficient of expansion of the cube material and E the modulus of elasticity, the stress developed in the cube is:
  • a)
  • b)
  • c)
  • d)
Correct answer is option 'B'. Can you explain this answer?

Ref: https://edurev.in/question/516547/A-cube-having-each-side-of-length-a-is-constrained-in-all-directions-and-is-heated-uniformly-so-tha


Imagein given question total deformation is equal to zero And force acting all face is equal and compression in nature's, stain is equal to sum of the axial and transverse. 
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1. What is GATE?
Ans. GATE (Graduate Aptitude Test in Engineering) is a national level entrance exam conducted in India for admission to postgraduate programs in engineering and technology. It is also used for recruitment purposes by various government and private organizations.
2. How often is the GATE exam conducted?
Ans. The GATE exam is conducted once a year. The exam is usually held in February and the results are declared in March. However, the exact dates may vary from year to year.
3. What is the eligibility criteria for appearing in the GATE exam?
Ans. To be eligible for the GATE exam, a candidate must have completed or be in the final year of their Bachelor's degree in Engineering/Technology/Architecture or Master's degree in any branch of Science/Mathematics/Statistics/Computer Applications. There is no age limit for the GATE exam.
4. What is the exam pattern of GATE?
Ans. The GATE exam consists of multiple-choice questions (MCQs) and numerical answer type questions. The duration of the exam is 3 hours. The paper is divided into two sections - General Aptitude and Subject-specific. The General Aptitude section is common for all candidates, while the Subject-specific section varies depending on the chosen paper.
5. How is the GATE score used for admissions and job opportunities?
Ans. The GATE score is used by various institutes in India for admission to postgraduate programs in engineering and technology. It is also used by several public sector undertakings (PSUs) for recruitment purposes. The score is considered as a benchmark for evaluating a candidate's knowledge and expertise in their respective field.
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