Points plotted by Cartesian coordinates are:
A) Are always positive or always negative
B) Are plotted by their linear distance from the origin
C) Defined in angular terms
D) Are plotted by circular arc dimensions
B
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Where does the manufacture of food take place in plants?
a. stem c. roots b. leaves d. flowers
Peds that are flat and thin are considered _______________________
Fill in the blank(s) with correct word
A heat process that causes a substance to change state is called:
A) Latent heat. B) Sensible heat. C) Specific heat capacity. D) Total heat.
How is a temperature-pressure relief valve on a hot-water boiler tested?
A) Pressurize the boiler with nitrogen until the pressure relief valve opens. B) Pressure relief valves are optional, so testing is not required. C) Jump the high limit and operate the burners until the pressure relief valve opens. D) Pull lever and look for water at outlet of discharge pipe.