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Engine Bottom EndMultiple ChoiceIdentify the choice that best completes the statement or answers the question.____1.Which of the following is not a metal that is plated over a steel backing for use as an engine bearing?a.Aluminum.c.Copper.b.Babbitt.d.Magnesium.____2.Which of the following methods is used to secure a full-floating piston pin in the piston?a.Cotter pins.c.Staking.b.Snap rings.d.Threaded inserts.____3.The face of a compression ring may be ____ to speed the process of ring seating.a.groovedc.taperedb.chamferedd.counterbored____4.The largest possible diameter increase to which a cylinder can be bored is called the ____.a.overbore limitc.diametric extentb.maximum toleranced.optimum bore____5.Cylinder ____, or deglazing, is normally a part of cylinder block service.a.grindingc.boringb.honingd.filing____6.If warpage of a block deck exceeds ____, the block must be surface-milled or replaced.a.0.03 to 0.05 in.c.0.0003 to 0.0005 in.b.0.003 to 0.005 in.d.0.00003 to 0.00005 in.____pression rings are made of ____.a.aluminumc.cast ironb.steeld.molybdenum____8.Crankshaft straightness can be measured with a(n) ____.a.dial indicatorc.straightedgeb.feeler gauged.taper gaugeTrue/FalseIndicate whether the statement is true or false.____9.All engine cylinder blocks today are made from aluminum.____10.A wet sleeve must be thicker than a dry sleeve.____11.Aluminum is seldom used for engine pistons.____12.A cam-ground piston is slightly out-of-round.____13.Crankshaft end play is the amount of side-to-side movement possible in the block.____14.Connecting rods and caps must have the same number to prevent possible engine damage.____15.Engine balancing is necessary to prevent potentially damaging vibration if the pistons, connecting rods, or crankshaft have been altered.____16.A flex hone uses abrasive stones mounted on rubber pads to smooth cylinder walls.____17.Cylinder taper is the difference in the diameters measured at the top and bottom of a cylinder.MatchingMatch the following terms and identifying phrases.a.ring groove widthd.pin hole diameterb.piston diametere.skirt pression distancef.ring groove depth____18.Distance from centerline of pinhole to top of piston.____19.Distance measured from top to bottom of ring groove.____20.Distance from bottom of skirt to centerline of pinhole.____21.Distance measured across sides of piston.____22.Distance measured from ring land to back of ring groove.____23.Distance measured across inside of hole for piston pin.Identify each of the marked items on the diagram below.____24.Rod bearing inserts.____25.Snap ring.____26.Rod nut.____27.Piston pin.____28.Rod bolt.____pression rings.____30.Rod cap.____31.Connecting rod.____32.Oil ring.____33.Rod bushing.____34.Piston.Identify each of the marked items on the diagram below.____35.Oil rail expander.____ compression ring.____ oil control rail.____38.Bottom compression ring.____39.Bottom oil control rail.Short Answer40.What are the three basic types of rear main oil seals?41.If rod bolts are not torqued to specification, what could happen?Engine Bottom EndAnswer SectionMULTIPLE CHOICE1.ANS:DPTS:12.ANS:BPTS:13.ANS:APTS:14.ANS:APTS:15.ANS:BPTS:16.ANS:BPTS:17.ANS:CPTS:18.ANS:APTS:1TRUE/FALSE9.ANS:FPTS:110.ANS:TPTS:111.ANS:FPTS:112.ANS:TPTS:113.ANS:FPTS:114.ANS:TPTS:115.ANS:TPTS:116.ANS:FPTS:117.ANS:TPTS:1MATCHING18.ANS:CPTS:119.ANS:APTS:120.ANS:EPTS:121.ANS:BPTS:122.ANS:FPTS:123.ANS:DPTS:124.ANS:IPTS:125.ANS:CPTS:126.ANS:KPTS:127.ANS:EPTS:128.ANS:HPTS:129.ANS:APTS:130.ANS:JPTS:131.ANS:FPTS:132.ANS:BPTS:133.ANS:GPTS:134.ANS:DPTS:135.ANS:DPTS:136.ANS:APTS:137.ANS:CPTS:138.ANS:BPTS:139.ANS:EPTS:1SHORT ANSWER40.ANS:Two-piece synthetic rubber, two-piece rope, one-piece synthetic rubber.PTS:141.ANS:If overtightened, a bolt could break during operation and cause severe block, crank, piston, and cylinder damage. If undertightened, the bolt could stretch, allowing the bearing to spin or hammer against the crank. Serious damage could result.PTS:1 ................
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