3–31.3–32.3–33.The speed of a ship can bedetermined from a pitometer log by1.multiplying the reading on thepitometer log by a constantfactor which is dependent uponthe characteristics of the ship2.combining the reading of thepitometer log with the readingof the engine revolutioncounter3.dividing the reading by thedensity of the water4.reading it directly from thecalibrated scaleA hydraulic machine is one whichoperates as a result of forcestransmitted by1.mechanical energy2.electrical energy3.steam in a closed space4.liquid in a closed spaceA closed hydraulic system will notoperate properly if air is presentin the lines or cylinders because1.air is highly compressible andcannot be used to transmitforces2.air, being compressible, wouldnot transmit the appliedpressure3.air interferes with the properoperation of the valves4.air increases the pressure inboth cylinders3-34.Which of the following is NOT atrue statement concerningtransmission of pressure in aliquid in a closed space?1.Pressure applied to any part ofthe liquid is transmittedequally to all points in theliquid2.Pressure applied to any part ofthe liquid is transmitted toall points in the liquidwithout loss3.Pressure in the liquid causesit to expand and increase indensity4.Pressure in the liquid acts atright angles to the walls ofthe container regardless of theshape of the container3–35.Which of the following has NOrelationship to the mechanicaladvantage of a hydraulic machinewith one small and one largepiston?1.The area of the small piston2.The area of the large piston3.The length of the connectingtube4.The distances the two pistonsmove26
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