（）are used to digest the sewage to produce innocuous sludge in a biological sewage treatment plant.

Under MARPOL Code the ship to which it applies has to carry （）

The flash point of a residual fuel oil should be used to determine the highest temperature to which oil may be heated（）

As soon as a diesel engine has started, which of the listed engine operating parameters should be checked FIRST?（）

Which of the listed governor characteristics will greatly affect the load sharing relationship between paralleled diesel generators?（）

The additional mark （）in the Classification Certificate for Machinery means propulsion apparatus is remotely controlled on the navigating bridge control station, and engine assembly control station is unmanned periodically.

Flame failure in an automatically fired auxiliary boiler can from a/an （）

Which one is NOT the ‘clear grounds’ for a more detailed inspection?（）

If two A.C.generators are to be operated in parallel, the load is distributed evenly by（）

If separating effect is not good, which measure should be taken （）