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

Cold weather starting of a diesel engine may be made easier by（）

The ISPS Code consists of a mandatory section-Part A, which shows（）

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

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

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

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.

Using a file without a handle may result in （）

For a given exhaust gas boiler, what is the quantity of its evaporation mainly determined?（）

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