Entry of any contaminant into the potable water system is called
A. backwater
B. backflow
C. siphonage
D. back pressure
Answer: B
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A tool used for checking system pressures, evacuating systems, recovering systems, and charging systems is:
A) A recovery cylinder. B) A vacuum pump. C) A digital thermometer. D) A gauge manifold.
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It is important to provide employees with training in the proper use of the eye protection devices.
Two types of field precision seeders are ________ and ________.
Fill in the blank(s) with the appropriate word(s).
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The dual-servo brake is more powerful than any non-servo design
Indicate whether the statement is true or false
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