q3sum032 - 6 Fatigue strength is property defined for a...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Home Introduction Policies Resources Requirements & Grading Syllabus Assignments Handouts Discussion Web Links Distance Learners Contact MSE 200 Quiz 3 1. Engineer's use engineering stress because
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
a strains are very large b. design is made in the elastic region c. design is made close to UTS ( b) 2. The area under the stress-strain curve gives the a. energy absorbed by the sample b. energy absorbed per unit volume by the sample c. energy absorbed by the sample and the grips ( b) 3. When a sample is unloaded in a tensile test, the strain remaining in the sample is a. total strain b. elastic strain c. plastic strain (c ) 4. Hardness of metal alloy samples is a measure of the a. yield strength b. ductility c. work hardening (c ) 5. Wear resistance of a cutting tool a. increases with increasing hardness b. increases with decreasing hardness c. does not depend on the hardness (a )
Background image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 6. Fatigue strength is property defined for a. ferrous materials b. bcc materials c. nonferrous materials ( c) 7. With increasing average stress applied on a sample under fatigue, the range of stress a. increases b. decreases c. does not change (b ) 8. Turbine blades are designed to operate in the a. stage I creep b. stage II creep c. stage III creep (b ) 9. Turbine blades are made of single crystals because a. Hall-Petch equations shows high strength b. Hall-Petch equation gives low strength c. voids should not be nucleated (c ) 10. Elastic -plastic stress strain curve is observed in a. steels b. aluminum c. lead (metal) ( c) 11. Fracture strength is obtained from a. engineering stress-strain curve b. true stress-true strain curve c. engineering stress-true strain curve (b )...
View Full Document

This note was uploaded on 10/11/2009 for the course MSE 200 taught by Professor Wholedepartment during the Spring '08 term at N.C. State.

Page1 / 2

q3sum032 - 6 Fatigue strength is property defined for a...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online