When consolidating a new lift of concrete, the vibrator head should penetrate the preceding lift by at least _____.


a. 4" (102 mm)
b. 6" (152 mm)
c. 8" (203 mm)
d. 10" (254 mm)


b. 6" (152 mm)

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What is the primary advantage of the dual-actuator E3 EUI over previous generations of single actuator EUIs?

A. hard nozzle opening and closing values B. soft nozzle opening and closing values C. open nozzle design D. closed nozzle design with VCO

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_______________________are preformed steel inserts within the eye to protect the wire rope when connected to a hook.

Fill in the blank(s) with the appropriate word(s).

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Select the characteristics of cubed ice. You may select more than one

A) Faster melting B) Slower melting C) Cloudy D) 70% hardness E) 95% hardness F) Clear

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The filler metal alloys that are used in roughly 85 percent of aluminum welds are _____

a. ER4043 and ER4145 b. ER4043 and ER5356 c. ER4145 and ER5356 d. ER5183 and ER5554

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