Toilets are available with ____ flush mechanisms which use the weight of the water in the tank to evacuate the bowl.

A. pressure assist
B. gravity
C. power assisted
D. hydro-assisted


Answer: B

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The legend and many general notes are often saved as a ____ for insertion in any drawing when needed.

A. grouping B. stage C. block D. unit

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For proper spacing, the PV panels at one installation requ?ire 18 square feet of ground space for each panel.  The number of panels that can be installed on 1 acre of land is 2,420 panels.  (1 acre = 43,560 square feet)

Answer the following statement true (T) or false (F)

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At the bottom of the pistil is the ovary, which contains a hollow structure called the ____________________

Fill in the blank(s) with correct word

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The reference pressure of an absolute pressure scale is __________.

A. the atmospheric pressure at sea level B. a vacuum

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