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.
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?
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
A ____ is a mechanical device that changes mechanical power into fluid power.
A. compressor B. motor C. piston D. pump