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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Q. In designing a sleeve coupling, outer diameter of the sleeve is taken as (where d = Diameter of the shaft)

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Q. In order to ensure self locking in a screw jack, it is essential that helix angle is __________ friction angle.

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Q. In case of thick cylinders, the tangential stress across the thickness of cylinder is

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Q. The cam follower generally used in automobile engines is

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Q. A closely coiled helical spring is acted upon by an axial force. The maximum shear stress developed in the spring is τ . The half of the length of the spring if cut off and the remaining spring is acted upon by the same axial force. The maximum shear stress in the spring in new condition will be

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Q. The malleable material should be plastic but is not essential to be so strong.

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Q. The temperature at which the new grains are formed in the metal is known as

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Q. Deep groove ball bearings are used for

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