Q. The velocity factor for precision metallic gears cut with high accuracy and operating at velocities upto 20 m/s is equal to

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Q. In a bolt, the plane of shear should be across the threaded portion of the shank.

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Q. When a metal or alloy is cold worked,

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Q. A leaf spring in automobiles is used

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Q. According to I.B.R., the factor of safety of riveted joint should not be less than

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Q. Which of the following welded joint is designed for shear strength ?

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Q. In designing a connecting rod, it is considered like __________ for buckling about X-axis.

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Q. The material commonly used for crane hooks is

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Q. The eye bolts are used for

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Q. The endurance or fatigue limit is defined as the maximum value of the stress which a polished standard specimen can withstand without failure, for infinite number of cycles, when subjected to

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Q. A special case of ductility which permits materials to be rolled or hammered into thin sheets, is called

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Q. Crowning on pulley helps

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Q. The temperature required for full annealing in hyper-eutectoid steel is

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Q. The effect of key ways on a shaft is to reduce its load carrying capacity and to increase its torsional rigidity.

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Q. The efficiency of a riveted joint is equal to

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Q. Which of the following formula is used in designing a connecting rod ?

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Q. When a material is subjected to fatigue loading, the ratio of the endurance limit to the ultimate tensile strength is

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Q. The lead angle of a worm is 22.5°. Its helix angle will be

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Q. The root angle of a bevel gear is equal to

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Q. Antifriction bearings are

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