of aire At tl gaue wgth of 3 in of carbon steel at 729 Wh t racture surface the
ID: 2074765 • Letter: O
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of aire At tl gaue wgth of 3 in of carbon steel at 729 Wh t racture surface the diameter was measured ug eth inceased to 3.45 in. What is the percent resdurta At the nd to 3.45 in. What is the percent reduction in area Question 7 T: SPisty Boegatios in the diresctiona of hoarling resuits in an oppsite change in to the londinc. The s most closely associated with that phenomena 2. Poiesson ratio 3 balk ratio 4 shear ratio Question s. (3 Poists) In a water-salt binary mixture cocstrstion of dissolved salt can be by increasing containing dissolved salt and undissolved salt, the the temperature of the solution. 2 beld coustant 3. incressed 4 sublimated Question 9. (3 Points) Which of the following is NOT an example of a mechanical 1. Fatigue strength 2. Ductility 3. Density 4. Stiffnes Question 10. (3 Poiuts) A is a simple non-destructive method to obtain a rough estimate of the ma- terials tensile strength. 1. tensile test 2 hardness test 3 high temperature creep elongation test 4. none of the above Question 11. (3 Points) The general-reaction is S,-. S2 + S3 (L liquid, S for solid). I eutectic 2. eutectoid 3. hypereutectic 4. hypoeutectold 2/2018 Version BExplanation / Answer
Q7) Poisson ratio = lateral sress/longitundal stress
Q8) density - It is a physical property and not a mechancial one while the others are mechancial properties
Q9) hardness tess - H= 3UTS
Q10)Eutectoid reaction
Q6) reduction in area = (original area - necking area)/original area
(d2 - d'2)/d2 * 100
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