Camshaftsareusuallydrivenbytiminggearsor().
A. pushrods
B. chaindrives
C. rockerarms
D. flywheels
Watersidescaleinafire-tubeboilermaycause().
A. increasedheattransfer
B. firesideerosion
C. highsteamdemand
D. overheatedtubes
Aseamanleavesavesselbeforeitsailsfromaforeignport.HeinformstheChiefOfficerthathewon’treturn.Afterthevesselsails,theChiefOfficerfindstheseaman’sworkclothesinhislocker.HowshouldtheMasterhandlethismatter?()
A. Logtheseamanasadeserter
B. Logtheseamanasafailtojoin
C. Logtheseamanformisconduct
D. Takenoaction
Ifthechemicalanalysisofalubeoilsampletakenfromadieselengineindicatesanincreasedneutralizationnumber,the().
A. acidityhasincreased
B. viscosityhasdecreased
C. demulsibilityhasimproved
D. foamingisguaranteedtooccur