1-20.What change, if any, will occurin the volume and weight of asubstance if its temperaturechanges?1.Both its volume and weightwill change2.Both its volume and weightwill be unaffected3.Its volume will change, butits weight will remainconstant4.Its weight will change, butits volume will remainconstant1-21.Which statement about specificgravity is false?1.The density of a solid can bedetermined by multiplying itsspecific gravity times thedensity of water2.Specific gravity can also bedescribed as specific weightor specific density3.Specific gravity of asubstance should be measuredat a standardized temperatureand pressure4.Specific gravity will varywith the size of the samplebeing tested1-22.How can the specific gravity of aliquid or solid be expressed?1.As a ratio between the weightof the substance and thedensity of a volume of water2.As a ratio between the weightof the substance and theweight of an equal volume ofwater3.As the number that shows thedensity of the substance inthe metric system4.As in 2 and 3 above1-23.What is the specific gravity of aliquid which weighs 44 pounds percubic foot at 4°C?1.0.4402.0.6243.0.7054.0.7891-24.1-25.1-26.1-27.1-28.What is the density of a solidthat has a specific gravity of2.5?1.156 pounds per cubic foot2.250 pounds per cubic foot3.312 pounds per cubic foot4.482 pounds per cubic footWhat is the specific gravity of asolid object which weighs 49.92pounds per cubic foot?1.0.7892. 0.83. 2.74. 0.9A device used for measuring thespecific gravity of a liquid isknown as a1.hydrography2.hydrometer3.hydrostat4.hydroscopeLearning Objective:Recognizethe principles and equationsinvolved with the transmission offorces, and solve relatedproblems.The pressure of force exerted onthe end of a rigid metal bar isapplied equally and undiminishedto all surfaces of the bar.1.True2.FalseThe head, or pressure due to theweight of a fluid, depends on thedensity of the fluid and the1.area of the bottom surface ofthe container2.total volume of the fluid3.vertical height of the fluid4.geometric shape of thecontainer3