A blowdown system for a cooling tower ____.
A. reduces the concentration of sediment in the sump
B. provides extra draft for higher evaporation rate
C. promotes vortexing
D. provides a means for balancing the water flow
Answer: A
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A soil has a bulk density of 139 lb/ft3 and a dry density of 122 lb/ft3, and the specific gravity of the soil particles is 2.70. Determine: (a) moisture content, (b) degree of saturation, (c) void ratio, and (d) porosity.
What will be an ideal response?
Carry the answer to three decimal places. A power company charges a city $1.2167 per street lamp per month. There are 1,125 street lamps supplied with current. What is the city's power bill per year for the street lamps?
Fill in the blank(s) with the appropriate word(s).
Because there is no counter emf when the armature is at a standstill, and its resistance is very low, the current taken by the armature on startup will be ____.
a. abnormally low b. low c. high d. abnormally high
Tertiary colors are created by mixing two primary colors in the same arrangement
Indicate whether the statement is true or false