Blog

ALERT….THIS QUESTION COULD NOT BE FORMATTED FOR ON-LINE DISPLAY. THIS TEXT WAS INSERTED TO MAINTAIN NUMBER SEQUENCING WITH THE PRINTED TEST ITEM FILE. DO NOT USE THIS QUESTION WHEN CREATING AN ASSESSMENT. 1.

I should watch all the class lecture videos and complete the related homework assignments prior to taking exams.

Compare the structure of the Kuiper Belt and Oort Cloud. Choose all correct answer.

What is true about Pluto? Choose all correct answers.

Choose all volatile materials.

The strain rosette shown in the figure was used to obtain the following normal strain data at a point on the free surface of a machine part: εa = 662 με, εb = 1,820 με, and εc = 456 με. Poisson’s ratio for the material is ν = 0.33. Determine the strain component εy at the point.

Use the graphical method to construct the shear-force diagram and identify the magnitude of the largest shear force (consider both positive and negative peaks). Use P = 2.71 lb, w = 1.20 lb/in., a = 3.94 in., b = 2.76 in., and c = 5.31 in. The reaction forces for this beam are By = 6.129 lb and Dy = 2.953 lb (both upward).

At a point in a structural-steel member, the stresses are σxx = 90 MPa, σyy = 0 MPa, σzz = 60 MPa, σxy = 0 MPa, σxz = 90 MPa, and σyz = 0 MPa. Determine the largest principal stress σ1.

At a point subjected to plane stress on the surface of a gusset plate, the stresses are σx = 30 ksi, σy = –25 ksi, and τxy = –20 ksi. Determine principal stress σ1 at the point.

The strain rosette shown in the figure was used to obtain the following normal strain data at a point on the free surface of a machine component: εa = 768 με, εb = 1210 με, and εc = 1320 με. The elastic modulus is E = 28,000 ksi, and Poisson’s ratio for the material is ν = 0.12. Determine the strain component εy at the point.