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A ball of 10 mm diameter is reduced to 8 mm by extrusion. Take σ y− 250 MPa, vbullet = 50 mm / s ; length of bullet = 75 mm . Find power required for this process
  • a)
     0.844 kW
  • b)
     0.944 kW
  • c)
     0.326 kW
  • d)
     0.89 kW
Correct answer is option 'B'. Can you explain this answer?
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A ball of 10 mm diameter is reduced to 8 mm by extrusion. Take σ ...
Power required = force*velocity
= stress*initial area*velocity of ram
= 250*(100π/4)*(.05) = 0.982 kW
the closest value is option b.
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A ball of 10 mm diameter is reduced to 8 mm by extrusion. Take σ y− 250 MPa, vbullet = 50 mm / s ; length of bullet = 75 mm . Find power required for this processa)0.844 kWb)0.944 kWc)0.326 kWd)0.89 kWCorrect answer is option 'B'. Can you explain this answer? for Mechanical Engineering 2025 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about A ball of 10 mm diameter is reduced to 8 mm by extrusion. Take σ y− 250 MPa, vbullet = 50 mm / s ; length of bullet = 75 mm . Find power required for this processa)0.844 kWb)0.944 kWc)0.326 kWd)0.89 kWCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A ball of 10 mm diameter is reduced to 8 mm by extrusion. Take σ y− 250 MPa, vbullet = 50 mm / s ; length of bullet = 75 mm . Find power required for this processa)0.844 kWb)0.944 kWc)0.326 kWd)0.89 kWCorrect answer is option 'B'. Can you explain this answer?.
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