Theexpansiontankinadieselengineclosedfreshwatercoolingsystemislocatedat（）
A. thehighestpointinthesystem
B. thelowestpointinthesystem
C. nearthefloor
D. platelevelornearthetanktoplevel
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Lubricatingsystemsfordieselenginesareusuallydesignedtoinitiallyprovidelubeoiltotheengine（）
A. camshaftbeatings
B. mainbearings
C. pistoncrowns
D. cylinderwalls
Ifthevalvetappetsinadieselenginearesetatgreaterclearancesthanthosespecifiedbytheenginemanufacturer,thosevalveswill（）
A. openlateandcloseearly
B. openlateandcloselate
C. failtoopenwhentheengineiscold
D. failtoopenatnormaloperatingtemperature
RegardingaDieselenginecrankcase,thegeneralarrangementandinstallationshouldprecludethepossibilityof（）
A. freeentryofairtothecrankcase
B. waterenteringthecrankcasewhileenginewash-downsarebeingperformed
C. excessiveoilleakageduringperiodsofincreasedblow-by
D. sub-coolinginternalcomponents
FLOATING，NOTCONTROLLED，WITHOUTACLEARLYDETERMINABLEDIRECTIONmeans（）.
A. Grounding
B. Sailing
C. Adrift
D. Runningintodanger
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