When installing a solenoid valve:
A) The arrow stamped on the body points toward the valve inlet port.
B) The coil should always be located on the underside of the valve.
C) The coil should be tested by energizing it off the valve.
D) The arrow stamped on the body should point in the direction of flow.
D
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Where angularity is intended to apply to the high points of the surface only, the ____________________ plane modifier is specified in the tolerance portion of the feature control frame.
Fill in the blank(s) with the appropriate word(s).
Which of the following is a characteristic of DC power?
A. Polarity is fixed. B. Voltage varies during cycles. C. It is difficult to measure. D. Voltage can be stepped up or down by a transformer.
____ tests are made by inspectors on the job to determine the consistency of concrete.
a.Aggregate b.Cement ratio c.Slump d.Admixture
The abbreviation for refrigerants containing chlorine, fluorine, carbon, and hydrogen is ____.
A. HFC B. HCFC C. CFC D. HFAC