Controlling algae or slime in open recirculating systems involves using chemical treatments and _____.
a. cleaning the equipment thoroughly at regular intervals
b. injecting scavenger microorganisms into the makeup water
c. keeping the temperature of the water in the sump below 60°F
d. restricting the air current path to the cooling tower periodically
a. cleaning the equipment thoroughly at regular intervals
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If a hydraulic pressure of 100 psi is applied to a 10-square inch output piston, the resulting output force is ________.
A) 10,000 lb B) 100 lb C) 1,000 lb D) 10 lb
Los siguientes son diferentes tipos de escaleras geométricas excepto _____.
a. circular
b. elíptica
c. en forma de doble L
d. espiral
____ is formed when ultraviolet radiation decomposes chlorinated hydrocarbon.
A. Argon B. Phosgene C. Ozone D. Carbon dioxide
The electrician uses the following amounts of 1-inch EMT conduit: 22.5 feet, 8 feet, 30.25 feet, and 816.75 feet. Find the total amount of EMT used.
Fill in the blank(s) with the appropriate word(s).