A． second-hand jacket will probably cost you.

A． $60 B. $40 C. $20 D.10

[单选题]The jacket water temperature in a diesel engine closed freshwater cooling system is normally controlled by （）A . regulating the level of corrosion inhibitor in the primary cooling systemB . the level of the freshwater expansion tankC . varying the en

[单选题]Pat: Who is the boy in the black jacket?Jane: ______

[单选题]A． water jacket is placed around the exhaust manifolds of propulsion diesel enginesto( ).A．reduce heat radiation to the engine roomB．aid in preventing turbocharger overheatingC．condense and drain moisture from exhaust gasesD．dampen exhaust gas pulsat

[单选题]The cooling water jacket is common to all the cylinders but there are often （） to ensure that each cylinder receives the right amount and flow of water.A . dividing wallsB . divided wallsC . dividing linersD . divided jacket

[单选题]The main propulsion diesel engine jacket water temperature rises above normal, with the raw sea suction and the expansion tank water level being normal. Which of the following problems is most likely the cause?A．Faulty thermostatic bypass valveB．Erod

[单选题]If the jacket water temperature rises rapidly above normal in a diesel engine, you should firstA．place standby cooler in operationB．reduce engine loadC．check thermostatic valveD．clean sea water strainer

[单选题]The speaker is probably .A．a host B.a singer C.a dancer D.a teacher

[单选题]Diesel engine jacket water is used in the distillation process as the （）.A . coolant for the distillateB . coolant for the brine coolerC . means of heating the feedwaterD . primary means of producing a vacuum within the distiller

[单选题]The second paragraph focuses on ______.A． World Health OrganizationB． flus in Hong Kong and SpainC． the economy of Southeast AsiaD． possible effects of a bird flu outbreak

[单选题]The author most probably is a ______.A．) teacherB．) psychologistC．) philosopherD．) doctor Text 2