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The figure shows a steel piece of diameter 20 mm at A and C, and 10 mm at B. the lengths of three sections A, B and C are each equal to 20 mm. The piece is held between two rigid surface x and Y. The coefficient of linear expansion α = 1.2 x 10−5 /℃ and Young’s Modulus E = 2 x 105 MPa for steel,
When the temperature of this piece increase by 50℃, the stresses in sections A and B are
  • a)
    120 MPa and 480 MPa
  • b)
    60 MPa and 240 MPa
  • c)
    120 MPa and 120 MPa
  • d)
    60 MPa and 120 MPa
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
The figure shows a steel piece of diameter 20 mm at A and C, and 10 m...
Α = 1.2 x 10−5/℃
E = 2 x 105 MPa
∆T = 50℃
Since supports are rigid
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Most Upvoted Answer
The figure shows a steel piece of diameter 20 mm at A and C, and 10 m...
Α = 1.2 x 10−5/℃
E = 2 x 105 MPa
∆T = 50℃
Since supports are rigid
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The figure shows a steel piece of diameter 20 mm at A and C, and 10 mm at B. the lengths of three sections A, B and C are each equal to 20 mm. The piece is held between two rigid surface x and Y. The coefficient of linear expansion α = 1.2 x 10−5 /℃ and Young’s Modulus E = 2 x 105 MPa for steel,When the temperature of this piece increase by 50℃, the stresses in sections A and B area) 120 MPa and 480 MPab) 60 MPa and 240 MPac) 120 MPa and 120 MPad) 60 MPa and 120 MPaCorrect answer is option 'B'. Can you explain this answer?
Question Description
The figure shows a steel piece of diameter 20 mm at A and C, and 10 mm at B. the lengths of three sections A, B and C are each equal to 20 mm. The piece is held between two rigid surface x and Y. The coefficient of linear expansion α = 1.2 x 10−5 /℃ and Young’s Modulus E = 2 x 105 MPa for steel,When the temperature of this piece increase by 50℃, the stresses in sections A and B area) 120 MPa and 480 MPab) 60 MPa and 240 MPac) 120 MPa and 120 MPad) 60 MPa and 120 MPaCorrect answer is option 'B'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about The figure shows a steel piece of diameter 20 mm at A and C, and 10 mm at B. the lengths of three sections A, B and C are each equal to 20 mm. The piece is held between two rigid surface x and Y. The coefficient of linear expansion α = 1.2 x 10−5 /℃ and Young’s Modulus E = 2 x 105 MPa for steel,When the temperature of this piece increase by 50℃, the stresses in sections A and B area) 120 MPa and 480 MPab) 60 MPa and 240 MPac) 120 MPa and 120 MPad) 60 MPa and 120 MPaCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The figure shows a steel piece of diameter 20 mm at A and C, and 10 mm at B. the lengths of three sections A, B and C are each equal to 20 mm. The piece is held between two rigid surface x and Y. The coefficient of linear expansion α = 1.2 x 10−5 /℃ and Young’s Modulus E = 2 x 105 MPa for steel,When the temperature of this piece increase by 50℃, the stresses in sections A and B area) 120 MPa and 480 MPab) 60 MPa and 240 MPac) 120 MPa and 120 MPad) 60 MPa and 120 MPaCorrect answer is option 'B'. Can you explain this answer?.
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