2–36.The direction of rotation of gear Gis counterclockwise.1.True2.FalseUse the following information toocompute the mechanical advantage oftextbook figure 6–1:Gear A radius = 2inches; Gear A teeth = 36; Gear B and Cteeth = 8; handle turn radius = 1 1/2inches.2–37.The mechanical advantage of theeggbeater is1.1/82.1/63.1/44.1/22–38.Refer to textbook figure 6-3B.What is the function of this geararrangement if the pinion isdriving the internal gear?1.To increase speed2.To magnify force3.To change direction of motion4.To change rotary motion intolinear motion2–39.Refer to the left–hand half offigure 6-12 in your textbook.Which of the following statementsbest describes the action of thevalve as the camshaft rotates 180°from its position as shown in thefigure?1.The valve remains closed2.The valve opens and stays open3.The valve opens and then closes4.The valve opens and closestwice2–40.A foot–pound is defined as theamount of1.force developed by a one–poundweight falling a distance ofone foot2.energy required to lift a one–pound weight3.power required to overcome aresistance of one pound4.work required to overcome aresistance of one pound througha distance of one foot2-41.Which of the following is anexample of work?1.Holding two pieces of gluedwood in a vise2.Rolling a barrel up a gangplank3.Changing water to steam4.Burning a log in a fireplace2–42.When you calculate the amount ofwork you have done on an object,the factors which you must alwaysmeasure are the1.resistance encountered and thedistance it is moved2.weight of the object and thedistance it is moved3.angle at which force is appliedand weight of the object4.time required to move theobject and resistanceencountered2–43.Assume that you must apply a forceof 150 pounds to overcome theresistance of a crate weighing 350pounds.In moving the crate up aninclined plane which is 12 feetlong, how much work do you do?1.4,200 ft–lb2.1,800 ft–lb3.350 ft-lb4.150 ft–lb17
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