What would the presence of algae suggest about the amount of water the soil
is holding?
What will be an ideal response?
The presence of algae, especially in large numbers, would tend to suggest that the
soil was holding a large amount of water that was not draining well from the site.
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If the accumulator is sweating should it be insulated? Why or why not?
a. No because it would make rusting a greater problem. b. Yes because rusting will cause pin-hole leaks in the steel body. c. Yes because it will stop the sweating and prevent water damage. d. No because it would stop the transfer of heat needed to boil off the refrigerant.
A head bolt must be tightened to 90 lb?ft. How much force must be applied to an 18-inch torque wrench?
What will be an ideal response?
The following formula is used to calculate circumference:
A. 3.1416 × r B. 3.1416 × d C. 3.1416 × 2d D. 3.1416 × 3r
Two technicians are discussing the Environmental Protection Agency (EPA). Technician A says the EPA was formed in the 1890's to address pollution from factories. Technician B says that the EPA met with early resistance in its efforts to protect the environment. Who is correct?
A. A only B. B only C. Both A and B D. Neither A nor B