The level switch tells you when the _____.
a. vessel is level
b. liquid level is empty
c. liquid level is at a certain point
d. vessel is not level
c. liquid level is at a certain point
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Indicate whether the statement is true or false
How many significant digits are in the number 2.050?
Fill in the blank(s) with the appropriate word(s).
An engine designed to burn CNG may include what design modifications?
A) Lower valve lift B) Lighter and thinner pistons C) Increased compression ratio D) None of these
Manholes in wastewater collection systems should be placed
a. no more than 30 meters apart b. at each pipe intersection and change of pipe slope or size c. at intervals no closer that 200 meters d. with inverts no more than 2 meters below grade e. all of the above