Q401
Open questionIn unilateral system of tolerance, the tolerance is allowed on
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Q402
Open questionA hollow shaft will transmit a __________ torque than a solid shaft of the same mass and same material.
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Q403
Open questionIn worm gears, the angle between the tangent to the pitch helix and an element of the cylinder, is known as
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Q404
Open questionA column is known as a long column if the slenderness ratio is
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Q405
Open questionEuler’s formula for a mild steel column is not valid if the slenderness ratio is
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Q406
Open questionThe material commonly used for machine tool bodies is
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Q407
Open questionWhen the belt is transmitting maximum power,
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Q408
Open questionWhen a belt drive is transmitting maximum power,
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Q409
Open questionWhen a helical compression spring is cut into halves, the stiffness of the resulting spring will be
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Q410
Open questionThe design of pin of a rocker arm of an I.C. engine is based on
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Q411
Open questionThe efficiency of a square threaded screw is maximum if the helix angle is equal to
(Where = Angle of friction)
(Where = Angle of friction)
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Q412
Open questionBrittle coating technique is used for
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Q413
Open questionIf a shaft made from ductile material is subjected to combined bending and twisting moment, calculations based on which one of the following failure theories will give the most conservative value?
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Q414
Open questionThe process which improves the machinability of steels, but lowers the hardness and tensile strength is
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Q415
Open questionWhen a material is subjected to fatigue loading, the ratio of the endurance limit to the ultimate tensile strength is
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Q416
Open questionThe centrifugal tension in the belt
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Q417
Open questionA long helical spring having a spring stiffness of 12 kN/m and number of turns 20, breaks into two parts with number of turns 10 each in both the parts. If the two parts are connected in series, then the softness of the resultant spring will be
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Q418
Open questionIn a band and block brake, the ratio of tensions on the tight and slack sides of band is given by (where = Coefficient of friction between the blocks and the drum, = Semi-angle of each block subtending at the centre of drum and n = Number of blocks)
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Q419
Open questionSlenderness ratio is the ratio of
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Q420
Open questionThe contact ratio is the ratio of
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