Describe the function of evaporative cooling pads in a greenhouse
What will be an ideal response?
Water is pumped to the top of the evaporative cooling pads through an overhead pipe. Water drips
through the pad while the exhaust fans pull outside air through the wet pads, which cools the air
moving through the greenhouse.
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When engine rpm rises and falls at random with no rhythmic pattern, the term used to describe this conditions is:
A. hunting B. insensitivity C. speed drift D. stability
An air conditioning system is called a __________system if it has a fixed restriction as part of it:
a. TXV b. H-block c. Accumulator d. Orifice tube
When the SCR is used for voltage control, a ____ is connected in series with the load resistor.
a. gate inverter b. bridge inverter c. gate rectifier d. bridge rectifier
The use of living organisms to remedy environmental problems is known as _____________
Fill in the blank(s) with correct word