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In order to obtain the bolts of uniform strength, an axial hole is drilled through the head as far as the threaded portion such that the area of shank becomes equal to the root area of the thread. A. True B. False
The value of stress concentration factor depends upon A. material of the part B. geometry of the part C. material and geometry of the part D. none of these
The ball bearings are provided with a cage A. to reduce friction B. to facilitate slipping of balls C. to prevent the lubricant from flowing out D. to maintain the balls at a fixed distance apart
The velocity of sliding __________ the distance of the point of contact from the pitch point. A. is directly proportional to B. is inversely proportional to C. is equal to cos φ multiplied by D. does not depend upon
A locking device in which the bottom cylindrical portion is recessed to receive the tip of the locking set screw, is called A. castle nut B. jam nut C. ring nut D. sawn nut
The application of third type levers is found in A. handle of a hand pump B. hand wheel of a punching press C. lever of a loaded safety valve D. a pair of tongs
A crankshaft is a __________ shaft. A. transmission B. machine
According to Indian standard specifications, 100 H6/g5 means that the A. actual size is 100 mm B. basic size is 100 mm C. difference between the actual size and basic size is 100 mm D. none of the above
When a bolt is subjected to shock loading, the resilience of the bolt should be considered in order to prevent breakage at the A. head B. shank C. thread D. middle
Stress concentration is caused due to A. variations in load acting on a member B. variations in properties of materials in a member C. abrupt change of cross-section D. all of these
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