Mechanical Engineering : Machine Design QUESTIONS AND ANSWERS :: part2 : 21 to 25
Following Mechanical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
21.If d is the diameter of bolt hole then for a flanged pipe joint to be leak proof, the circumferential pitch of the bolts should be |
| lOVZ |
| 10VZtol5Vd |
| 15Vdto20VZ |
| 20Vdto30Vd |
| 30V5"to40Vd. |
22.Maximum principal stress theory is applicable for |
| ductile materials |
| brittle materials |
| elastic materials |
| all of the above |
| none of the above. |
23.Which process will increase the fatigue duration of parts ? |
| finishing and polishing |
| shot-peening |
| decarburisation |
| electroplating |
| all of the above". |
24.The following type of nut is used with alien bolt |
| alien nut |
| hexagonal nut |
| slotted nut |
| castle nut |
| any one of the above. |
25.Yield point in fatigue loading as compared to static loading is |
| same |
| higher |
| lower |
| depends on other factors |
| none of the above. |
More Machine Design QUESTIONS AND ANSWERS available in next pages
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