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.

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

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

Which of the following items don’t belong to dock repair works?（）

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

Diesel engine air start system check valves are opened by （）

“Insufficiency of manning or insufficiency of certification of seafarers” is an identification of a（）

The main purpose of port State control is not to（）

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

A purge recovery system is used in a centrifugal air conditioning or refrigeration system to （）