How much makeup water should be provided to overcome evaporation losses and bleed off for a swimming pool?
A) Depends on the depth of the pool.
B) About 0.5 to 1.5 gpm per 1000.
C) About 1 or 2% of the pumped circulation rate.
C) About 1 or 2% of the pumped circulation rate
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After the water pump was replaced and the cooling system refilled with coolant, the heater stopped providing warm air. Which of these is the MOST LIKELY cause?
A) The wrong concentration of antifreeze was installed B) A slipping water pump drive belt C) A defective heater control valve D) An air pocket is trapped in the heater core
Making an additional connection between a piece of equipment and the earth is called
____________________.
Fill in the blank(s) with the appropriate word(s).In humid regions repeat applications of limestone are needed after a few years primarily because of ________
A) increased rates of formation of carbonic acid (H2CO3) B) increases in phosphate fertilization C) increases in soil acidity from acid rain D) the release of aluminum ions from the structure of silicate clays E) the annual loss of calcium and magnesium in drainage waters
What is the hydrostatic pressure of water if the level is 20 feet in a tank that is 10 feet in diameter?
What will be an ideal response?