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

The treatment of the fuel oils involves storage, heating, filtering and（）

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

Using a file without a handle may result in （）

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

Thermostatic steam pressure reducing valves are used in the fuel oil service system to control the（）

One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is（）

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

The shipboard oil pollution emergency plan will be invalid after （）

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