Mechanical Engineering : Machine Design QUESTIONS AND ANSWERS :: part6 : 1 to 5
Following Mechanical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
1.Allen bolts are |
| self locking bolts |
| designed for shock load |
| used in aircraft application |
| provided with hexagonal depression in head |
| uniform strength bolts. |
2.The resultant axial load on a bolt depends on |
| initial tension |
| external load applied |
| relative elastic yielding (springiness) of the bolt and the connected member |
| (a) and (b) above |
| (a), (b) and (c) above. |
3.The connecting rod bolts are tightened up so that tightening stress |
| is just sufficient to hold parts together |
| approaches yield point |
| is 50% of yield point |
| is about yield point divided by safety factor |
| none of the above. |
4.When a bolt is subjected to shock loading, the resilience of the bolt should be considered in order to prevent breakage at |
| shank |
| head |
| in the middle |
| at the thread |
| anywhere in the bolt. |
5.The connecting rod bolts are tightened up with initial tension greater than the external load so that |
| joint may not open up |
| bolts are weakest elements |
| the resultant load on the bolt would not be affected by the external cyclic load |
| bolts will not loosen during service |
| none of the above. |
More Machine Design QUESTIONS AND ANSWERS available in next pages
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