What is the combined flow in MGD of the stream and wastewater downstream of the discharge?
A soft drink bottling plant discharges a wastewater with a dissolved solids concentration of 10,000 mg/l NaCl, at a rate of 100 gal/min to a stream. The stream above the discharge has a volumetric flowrate of 1.0 MGD and a dissolved solids concentration of 25 mg/l. Below the discharge point is a prime fishing spot, and the fish are intolerant of salt concentrations above 200 ppm.
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It is recommended that UTP cables be secured no more than __________ inches from an enclosure.
a. 3 b. 8 c. 12 d. 30
When performing overhead work on scaffolding, what protective measures must be taken to prevent objects
from falling and striking a person below? a. Fall arrest systems are used. b. Alarm systems should be enabled. c. Toeboards, debris nets, or canopies must be applied. d. Warning tags are posted on the scaffold.
Which switching device uses a shutter blade and sensor to detect a magnetic field?
A) Pickup coil
B) Hall-effect switch
C) Optical sensor
D) Ignition coil
For what purpose are come-alongs most often used?
A. Lifting engines. B. To apply straight line force to an object. C. Separating heads from blocks. D. Dragging engine blocks.