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I am a teacher and need help creating exam problems. Please recommend more incorrect answers to the following problem but do not explain your logic. A Mohr’s circle is shown for a point in a physical object that is subjected to plane stress. If 1 grid square = 8 MPa, determine the stress σx.

Create 5 variations of the following problem but do not show the answers. At a point in a body subjected to plane strain, the strains are εx = –530 με, εy = –710 με, and γxy = 130 μrad. Determine the magnitude of the absolute maximum shear strain at the point.

I am a teacher and need help creating exam problems. Please recommend more incorrect answers to the following problem but do not explain your logic. At a point subjected to plane stress on the surface of a compressed air cylinder, the stresses are σx = –30 ksi, σy = –15 ksi, and τxy = 29 ksi. Determine normal stress σn at the point for a clockwise coordinate rotation of 69°.

Create 5 variations of the following problem but do not show the answers. At a point subjected to plane stress on the surface of a structural member, the stresses are σx = 24 ksi, σy = 23 ksi, and τxy = 6 ksi. Determine the magnitude of the absolute maximum shear stress at the point.

Create 5 variations of the following problem but do not show the answers. At a point in a body subjected to plane strain, the strains are εx = –530 με, εy = –380 με, and γxy = 70 μrad. Determine principal strain εp2 at the point.

Create 5 variations of the following problem but do not show the answers. At a point in a body subjected to plane strain, the strains are εx = –500 με, εy = –520 με, and γxy = –130 μrad. Determine principal strain εp2 at the point.

I am a teacher and need help creating exam problems. Please recommend more incorrect answers to the following problem but do not explain your logic. At a point subjected to plane stress on the surface of a compressed air cylinder, the stresses are σx = 5 ksi, σy = 9 ksi, and τxy = –1 ksi. Determine shear stress τnt at the point for a clockwise coordinate rotation of 78°.

I am a teacher and need help creating exam problems. Please recommend more incorrect answers to the following problem but do not explain your logic. At a point subjected to plane stress on the surface of a compressed air cylinder, the stresses are σx = 30 MPa, σy = 90 MPa, and τxy = 10 MPa. Determine normal stress σt at the point for a counterclockwise coordinate rotation of 74°.

I am a teacher and need help creating exam problems. Please recommend more incorrect answers to the following problem but do not explain your logic. A Mohr’s circle is shown for a point in a physical object that is subjected to plane stress. If 1 grid square = 3 MPa, determine the stress σy.

Create 5 variations of the following problem but do not show the answers. At a point in a body subjected to plane strain, the strains are εx = 680 με, εy = 470 με, and γxy = 80 μrad. Determine the angle θp corresponding to the orientation of the principal planes at the point.