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Questions and Answers
Which material experiences greater stress under the given load?
Which material experiences greater stress under the given load?
- The aluminum bar with a stress of 380 MPa
- The aluminum bar with a stress of 480 MPa (correct)
- The steel bar with a stress of 480 MPa
- The steel bar with a stress of 380 MPa
What is the strain in the copper rod after it is strained to have a gage length of 5.77 cm?
What is the strain in the copper rod after it is strained to have a gage length of 5.77 cm?
- 16.5%
- 13.5%
- 14.5% (correct)
- 15.5%
How much will a steel wire 2.5 mm in diameter and 3 meters long be deformed when it supports a load of 4900 N?
How much will a steel wire 2.5 mm in diameter and 3 meters long be deformed when it supports a load of 4900 N?
- 1.5 cm
- 3.5 cm
- 2.5 cm (correct)
- 4.5 cm
Calculate the true tensile strength of a copper wire with a nominal breaking strength of 300 MPa and a reduction of area of 77%.
Calculate the true tensile strength of a copper wire with a nominal breaking strength of 300 MPa and a reduction of area of 77%.
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A copper wire has a nominal breaking strength of 300 MPa. What is the true tensile strength if the reduction of area is 77%?
A copper wire has a nominal breaking strength of 300 MPa. What is the true tensile strength if the reduction of area is 77%?
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