Iin a flexural test of a standard 2 by 2 by 30-in. douglas-fir specimen (28-in. span), the deflection at midspan was 0.125 in. when the center load was 800 lbs., the load still being within the elastic range. the beam failed at a center load of 2,800 lbs. when the deflection was 0.600 in. compute the modulus of elasticity.

unlike the threaded fasteners which are used to clamp the machine members, power screws are used to transmit power. common applications of power screws are: screw jacks: to lift weight. lead screw of lathe: for axial movement of tool and its precise positioning.

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elements: an element is a single part of a larger group.

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not me

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