Q. The crest diameter of a screw thread is same as
✅ Correct Answer: (A)
Major diameter
Machine Design MCQs | Page - 110
Dear candidates you will find MCQ questions of Machine Design here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.
Q. In order to have a connecting rod equally strong in buckling about X-axis and Y-axis, the moment of inertia about X-axis should be __________ the moment of inertia about Y-axis.
✅ Correct Answer: (D)
Four times
Q. The connecting rod bolts are tightened up so that tightening stress
✅ Correct Answer: (B)
Approaches yield point
Q. A leaf spring in automobiles is used
✅ Correct Answer: (C)
To absorb shocks
Q. The fatigue stress concentration factor is defined as
✅ Correct Answer: (B)
The ratio of endurance limit without stress concentration to the endurance limit with stress concentration
Q. The ratio of the ultimate stress to the design stress is known as
✅ Correct Answer: (C)
Factor of safety
Q. Turn buckle has
✅ Correct Answer: (C)
Left hand threads on one end and right hand threads on other end
Q. The angle of twist of shaft is
✅ Correct Answer: (D)
Inversely proportional to (shaft diameter)4
Q. The minimum number of teeth on the pinion which will mesh with any gear without interference for 20° full depth involute teeth will be
✅ Correct Answer: (C)
18
Q. The included angle for the V-belt is usually
✅ Correct Answer: (B)
30° - 40°
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