Q. When the screw in a mechanical screw jack rotates, the load kept on the top of it moves

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Q. Which of the following bearing is preferred for oscillating conditions?

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Q. A thin spherical shell of internal diameter d is subjected to an internal pressure p. If σt, is the tensile stress for the shell material, then thickness of shell is equal to

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Q. A quarter turn belt drive is used when the shafts are arranged at right angles and rotate in one definite direction.

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Q. According to Indian standard specifications, a plain carbon steel designated by 40C8 contains carbon

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Q. The machine screws are

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Q. A bolt is designed on the basis of __________ with a large factor of safety.

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Q. When a circular beam of diameter d is subjected to a shear force F, the maximum shear stress induced will be

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Q. In a belt drive, if the pulley diameter is doubled keeping the tension and belt width constant, then it will be necessary to

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Q. Which of the following statement is wrong ?

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Q. The draw of cotter should not be more than

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Q. The bolts of smaller diameter than M16 are not permitted in making fluid tight joints.

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Q. In a marine flange coupling, the pitch circle diameter of bolts is taken as

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Q. The steel widely used for motor car crankshafts is

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Q. When compared to the rod of the same diameter and material, a wire rope

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Q. According to Indian standards, total number of fundamental deviations are

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Q. In the calculation of induced shear stress in helical springs, the Wahl's stress factor is used to take care of

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Q. Creep in belt is due to

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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

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Q. A bolt of M 24 x 2 means that

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