While steaming slowly in the harbor，no

1、In setting the valves on a steam-smoth

In setting the valves on a steam-smothering system on a tank vessel，the master control valve to cargo tanks should be（）.Aopen and individual...

2、While engine is in operation the pisto

While engine is in operation the piston moves up and down, thus causing the rotation of the （）.AcrankcaseBslipperCcam housingDcrankshaft

3、While Monitoring the space usage in y

While Monitoring the space usage in your database that is in ARCHIVELOG mode you observed that the flash recovery area does not have enough f...

4、In setting the valves on a steam-smoth

In setting the valves on a steam-smothering system on a tanker，the master control valve to cargo tanks should be（）.Aopen and individual tank...

5、While Monitoring the space usage in y

While Monitoring the space usage in your database that is in ARCHIVELOG mode you observed that the flash recovery area does not have enough f...

6、The water level in a steaming auxiliar

The water level in a steaming auxiliary boiler will always （）Arise when the steam pressure is increasedBremain constant as long as the feed pump operatesCfall when the steam pressure is decreasedDvary as the steam demand change