A water supply line that a plumber is installing requires the close control of flow at all times. To ensure
maximum control, the plumber should install a _____.
a. ball valve
b. check valve
c. globe valve
d. gate value
c
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____ detectors are used where combustible materials are present.
A. Heat B. Fire flame C. Smoke D. Photoelectric
____ light works with red to maximize the effects of photosynthesis and also is responsible for
phototropic response.
a. Red c. Blue b. Yellow d. Purple
Technician A says that the most commonly used combustion chamber types include hemispherical, and wedge. Technician B says that coolant and lubricating openings and passages are located throughout most cylinder heads. Who is right?
A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B
Divide the following fractions and reduce to lowest terms:5 1/5 รท 1/5 =
Fill in the blank(s) with the appropriate word(s).