Which of the listed types steam traps operates on the principle that hot water flashes to steam when its vapor pressure is rapidly reduced?（）
When yon（）an agent, it is usual to（）the appointment in writing.
When the fuel oil is burning in the combustion chamber, it （）.
When a boiler is operating, the water level in the gauge glass reads （） when the boiler is shut down.
In rough weather，when a ship is able to maneuver，it is best to launch a lifeboat（）.
When starting an engine, the compressed air enters the cylinder when the corresponding piston is in position of its（）
When ship navigating in rough sea, the correct operation is （）
When towing in an open seaway，it is important to use a towing line（）.
When the steering gear is in operation, you should （）.
When a diesel engine is operate at partial load, as compared to full load ,a decrease will occur in the average （）
When normal operating pressure is applied to the hydraulic oil used in a high-pressure system, the oil （）.
Which action should be taken when an auxiliary boiler in is operation?（）
For many years marine centrifuges were designed for （） operation, that is the machines were run for a period during which solids accumulated in the bowlThe machine was stopped when the accumulated solids began to impair its performance.
Which of the following actions should normally be taken during each watch when the auxiliary boilers is in operation?（）
The plunger in the fuel injector pump, usually operated by a （）, is driven up and down when working.
An interlock in the remote operating valve line stops the valve （） when the engine turning gear is engaged.
When there is a single word, it should be read in its weak form.
When a pencil is partly in a glass of water, it looks as if it ( ).
Girls should have their hair tied and hide it in the hat when operating the CNC machine.
The control record directs the operators in exactly how to make the product and the operators must follow the batch record instructions just as it is written.
When anchoring in calm water, it is best to _____.
Online shopping is superior to shopping in a supermarket when it comes to（ ）.
It is common practice__________a battery when it still has some life in it .
\Fruit is best when it is ___season.\ The blank should be \in\.( )
