If a liquid sight flow indicator in a refrigeration system shows gas bubbles in motion passing inside of the glass, there is ().
Which of the following influences the position of the interface between the liquid seal and the oil in a purifier?()
Compared to the amount of concentrated foam liquid used,the amount of low expansion mechanical foam produced is().
Which of the following pumps are self-priming, and can deal with liquid from a level below the pump: () (1)reciprocating (2)vane (3)gear
()is a technique used for illumination behind the liquid crystal display that makes LCDs easier to read.
In the process of (), liquid changes into gas.
Which of the following influences the position of the interface between the liquid seal and the oil in a purifier?()
() is the temperature at which a liquid fuel gives off sufficient vapor to form an ignitable mixture near its surface.
When liquid reaches the compressor of a refrigeration system through the suction line, the condition is called ().
Which of the following pumps are self-priming, and can deal with liquid from a level below the pump? () (1) reciprocating (2) vane (3) gear