A . for starting diesel engines
B . in pneumatic control system
C . in pneumatic tools
D . All the above are true
[单选题]Compressed air is supplied by air compression to ().A . the air receiversB . the starting valvesC . the cylinder coversD . the distributor
[单选题]The compressed air is supplied by () to the air reservoirs.A . compressorsB . forced fansC . ventilatorsD . generator
[单选题]The compressed air is admitted to each cylinder through a cam operated by starting air valve when the piston has just passed its ().A . BDCB . TDCC . BBDCD . ATDC
[单选题]E.ach ship shall carry on board a ship security plan approved byA.the chief engineer officerB.the master of the shipC.the manager of the companyD.the Administration
[单选题]E.ach ship shall carry on board a ship security plan approved by______.A.the chief engineer officerB.the master of the shipC.the manager of the companyD.the Administration
[单选题]The pumps employed on board ship can be divided into two main categories ie() pumps and centrifugal pumps.A . gearB . nonpositive displacementC . positive displacementD . rotary
[单选题](), so they are widely used on board ship nowadays.A . Diesel engines have more advantages in comparison with gasoline enginesB . Diesel engines have more advantages in comparison to gasoline enginesC . Gasoline engines have more advantages in compar
[多选题]The air waybill can be used for ( ).A.customs declarationB.the proof of the
[多选题]The air waybill can be used for ( ).A.customs declarationB.the proof of the
[单选题]He is used to flying by air and on no occasion_____frightened.A.he ever fel