The ratio of an object’s weight to its volume is

a. density
b. specific volume
c. specific gravity
d. specific weight


d. specific weight

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Draw the envelopes for maximum shear and moment in a 24-ft-long simply supported beam produced by a live load that consists of both a uniformly distributed load of 0.4 kip/ft of variable length and a concentrated load of 10 kips (Figure P12.42). The 10-kip load can act at any point. Compute values of the envelope at the supports, quarter points, and midspan.

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Two technicians are discussing the metering valve in a front-disc, rear-drum braking system. Technician A says that the metering valve delays application of the front brakes. Technician B says that the metering valve delays the application of the rear brakes. Which technician is correct?

A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B

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A ____ is a mechanical device that changes mechanical power into fluid power.

A. compressor B. motor C. piston D. pump

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When laying out rafters, the distance between the last two may be less than 24?, but not more than _____

a. 16? b. 18? c. 22? d. 24?

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