Reserve hot oil pump preheat speed is ( ).

With regard to the reserve heat pump pre-heat, the following statement is correct ( ).

With regard to the pre-heat of the spare hot pump, the following statement is wrong ( ).

Do not use ( ) while the spare hot oil pump is warming up.

Before starting the reheating furnace shock soot blower, should be ( ).

In case of emergency furnace shutdown, the flue baffle adjustment operation is correct ( ).

The action of the heating furnace flue baffle is ( ).

In normal production, the correct adjustment operation of the flue baffle is ( ).

The heating furnace uses an air preheater ( ).

The wrong thing about what the air preheater does is ( ).

The action of the air preheater is ( ).

The action of the flue gas - air preheater is ( ).

After the machine pump runs for a period of time, the lubricating oil will deteriorate and lose its due role, so you need ( ).

When adding lubricating oil to the centrifugal pump, the liquid level should generally be in the bearing box level gauge ( ) position.

For a running pump, you can tell if the lubricating oil has deteriorated by ( ).