When working with a circle, ?d represents _____
a. the diameter
b. the radius
c. the circumference
d. an arc
c
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Butterfly valves are typically used in _____ pressure and temperature applications.
a. very low b. low to medium c. medium to high d. very high
Low-voltage remote control switching relays use _____.
a. no coil b. a split coil c. a single coil d. four coils
With four wheel steering systems, what term describes the front and rear wheels turning the same direction?
A) Negative phase mode B) Same phase steering C) Opposite phase steering D) None of these
Grasslands usually are populated:
A. only by members of the Poaceae family. B. only by dicotyledonous plants with blade-like leaves. C. predominately by blade-like dicotyledonous plants and a few Poaceae. D. predominately by Poaceae with other families mixed in.