assignment 2 solns

# assignment 2 solns - F 1 , can be applied to the plunger...

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2.3 An unknown immiscible liquid seeps into the bottom of an open oil tank. Some measurements indicate that the depth of the unknown liquid is 1.5 m and the depth of the oil (specific weight = 8.5 kN/m 3 ) floating on top is 8 m. A pressure gage connected to the bottom of the tank reads 88 kPa. What is the specific gravity of the unknown liquid? 2.8 The drain plug in a bathtub is designed to seal properly when there is a 0.07 psi pressure applied to it. How deep must the water be in the tub for the plug to seal?

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2.12 The basic elements of a hydraulic press are shown in Figure. The plunger has an area of 1 in. 2 , and a force,

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Unformatted text preview: F 1 , can be applied to the plunger through a lever mechanism having a mechanical advantage of 9 to 1. If the large piston has an area of 170 in. 2 , what load, F 2 , can be raised by a force of 70 lb applied to the lever? Neglect the hydrostatic pressure variation. 2.19 Aneroid barometers can be used to measure changes in altitude. If a barometer reads 31.1 in. Hg at one elevation, what has been the change in altitude in meters when the barometer reading is 28.9 in. Hg? Assume a standard atmosphere and that Eq. 2.12 is applicable over the range of altitudes of interest. 2.24 2.26 2.31 2.45 2.92 2.96...
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## This document was uploaded on 09/26/2010.

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assignment 2 solns - F 1 , can be applied to the plunger...

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