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

Using a file without a handle may result in （）

To shut down a diesel engine after it exceeds the set maximum speed，which type of device listed should be used?（）

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

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

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

The condensers located in various stages of a flash evaporator are cooled by（）

Refrigerant entering the compressor of a refrigeration system should be in which of the following conditions?（）

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

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