What is the change in length of the cylinder

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Reference no: EM131215461

1. Prior to application of a load, a cylinder measure's 20 inches in height. The cylinder is then subjected to a compression test. When a load of 5,000 psi is applied, the strain is .005 inch/inch. What is the change in length of the cylinder when the 5,000 psi load is applied?

A. 0.1 in.
B. 0.15 in.
C. 0.05 in.
D. 0.25 in.

2. A 0.25-inch-radius steel rod is 15 feet long. If the rod supports a 10 kip tensile force, determine its elongation in inches. (Assume E = 29 × 103ksi)

A. 0.6324 in.
B. 0.9200 in.
C. 0.3162 in.
D. 0.8644 in.

3. Refer to the image shown here in answering this question.

What tensile force F must act on the bolt shown in the figure to create an average shear stress in the bolt of 25 ksi? Assume the bolt's diameter is 1.0".

A. 19.635 kips
B. 13.28 kips
C. 9.82 kips
D. 17.32 kips

4. The modulus of elasticity for a material sample exposed to a load is found by taking the ratio of the sample's

A. stress to strain.
B. change in length to original length.
C. change in strain to original strain.
D. change in stress to original stress.

5. A material's modulus of elasticity is a measure of its

A. diameter.
B. cross-sectional area.
C. strength.
D. stiffness.

6. The strain on a material sample that's exposed to a load is the ratio of the sample's

A. original stress to final stress.
B. change in length to original length.
C. original length to final length.
D. change in stress to original stress.

7. Refer to the image shown here in answering this question.

Find the average shear stress in the bolt shown in the figure. Assume that the bolt's diameter is 0.5" and it's subjected to a tensile force, F = 15 kips.

A. 152.82 ksi
B. 76.41 ksi
C. 89.34 ksi
D. 38.205 ksi

8. A cylinder 20 inches high is subjected to a compression test. When a load of 5,000 psi is applied, the strain is 0.005 inch/inch. What is the modulus of elasticity for the cylinder?

A. 1,000,000 psi
B. 50,000 psi
C. 100,000 psi
D. 5,000 psi

9. Refer to the image shown here in answering this question.

Determine the link force in Member AD shown in the figure. Then determine whether the member is in tension or compression.

A. 275 lbs, compression
B. 275 lbs, tension
C. 525 lbs, compression
D. 525 lbs, tension

10. Bending stresses are considered to be a

A. form of shear stress.
B. form of tension stress.
C. combination of tension and compression stresses.
D. form of compression stress.

11. A relatively easy way of analyzing the effect of loads on trusses is known as the method of

A. components.
B. joints.
C. panels.
D. chords.

12. Refer to the image shown here in answering this question.

Find the average shear stress in the bolt shown in the figure. Assume that the bolt's radius is 0.75" and it's subjected to a tensile force, F = 10 kips.

A. 6.42 ksi
B. 5.66 ksi
C. 2.83 ksi
D. 4.61 ksi

13. Refer to the image shown here in answering this question.

Determine the link force in Member BC shown in the figure. Then determine whether the member is in tension or compression.

A. 213.03 lbs, compression
B. 213.03 lbs, tension
C. 586.97 lbs, tension
D. 586.97 lbs, compression

14. Refer to the image shown here in answering this question.

Find the cross-sectional area of the bolt shown in the figure given that there's an average shear stress of 27ksi and the bolt is subjected to a force, F = 12.5 kips.

A. 0.663 in. 2
B. 0.463 in.2
C. 0.718 in.2
D. 0.840 in. 2

15. The method of sections is a procedure for analyzing the effect of loads on trusses based on the principle that when the entire structure is in static equilibrium, all of the parts of the structure

A. move in relation to the whole.
B. can't be in static equilibrium.
C. must also be in static equilibrium.
D. are statically indeterminate.

16. The stress in a member that's exposed to a load is calculated by dividing

A. external force on the member by the member's cross-sectional area.
B. internal force (or link force) on the member by the member's cross-sectional area.
C. external force on the member by the member's diameter.
D. internal force (or link force) on the member by the member's diameter.

17. A material sample is exposed to shear stress. The shear stress acts

A. parallel to the sample's cross-sectional area.
B. perpendicular to the sample's cross-sectional area.
C. into the sample's cross-sectional area.
D. away from the sample's cross-sectional area.

18. A 2-inch-diameter steel rod is 12 feet long. If the rod supports a 20 kip tensile force, determine its elongation in inches. (Assume E = 29 × 103 ksi)

A. 0.0316 in.
B. 0.0332 in.
C. 0.0664 in.
D. 0.0158 in.

19. Refer to the image shown here in answering this question.

Determine the link force in Member BD shown in the figure. Then determine whether the member is in tension or compression.

A. 600 lbs, compression
B. 400 lbs, compression
C. 600 lbs, tension
D. 400 lbs, tension

20. A truss is a structural system that's made up of members called

A. beams.
B. panels.
C. links.
D. rods.

Reference no: EM131215461

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