If a valve is marked WOG on the body, what does this mean?
A. It is suitable for use with water, oil, or gas at 70° F.
B. It is suitable for saturated steam pressure.
C. The flow direction runs from left to right.
D. The flow direction runs from right to left.
Answer: A
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Technician A says that a good relay should measure between 60 and 100 ohms across the coil terminals. Technician B says that OL should be displayed on an ohmmeter when touching terminals 30 and 87. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
Turbidity in water is commonly treated by using a(n) _____.
a. activated-charcoal system b. diatomaceous-earth filter c. fine-mesh filter d. reverse-osmosis unit
Which regional power controlled the loosely united political entity called the German Confederation?
a. Prussia b. Austria c. Russia d. Poland
The perimeter system is most cost effective when used in
A) larger buildings. B) interior spaces. C) older buildings. D) single story buildings.