Mechanical Engineering : Machine Design QUESTIONS AND ANSWERS :: part1 : 6 to 10
Following Mechanical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
6.If a load W is applied instantaneously on a bar; then the stress induced in bar will |
| be independent of ratio of mass of load W to mass of bar (y) |
| increase with increase in y |
| decrease with decrease in y |
| depend on other considerations |
| none of the above. |
7.Guest's theory of failure is applicable for following type of materials |
| brittle |
| ductile |
| elastic |
| plastic |
| tough. |
8..Other method of reducing shock load in the above case can be |
| to decrease length |
| to increase length |
| unaffected by length |
| other factors would decide same |
| none of the above. |
9.The pci Tnissible stress for carbon steel under static loading is generally taken as |
| 2000-3000 kg/pm2 |
| 3000-4000 kg/cm2 |
| 4000-J500 kg/cm2 |
| 7500-10,000 kg/cm2 |
| 10,000-15,000 kg/cm2. |
10.Stress concentration in static loading is more serious in |
| ductile materials |
| brittle materials |
| equally serious in both cases |
| depends on other factors |
| unpredictable. |
More Machine Design QUESTIONS AND ANSWERS available in next pages
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