How can moisture in the refrigeration system affect the metering device?
A) Water will improve the thermal contact of the expansion valve bulb.
B) Water can freeze up at the metering device, causing a restriction.
C) Water will not affect metering device operation.
D) Water in the system improves operation of the metering device through hydronic cooling.
B
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A. 16 B. 144 C. 180 D. 970
The subflooring and roof decking over the posts and beams construction is commonly 2X6, 2X8, or 1 1/8" (50X150, 50X200, or 28 mm) T&G plywood.
Answer the following statement true (T) or false (F)
When the DC excitation increases to cause an over-excited synchronous motor, a __________ is developed.
A. lagging power factor B. leading power factor C. unity power factor D. none of the above
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A. 0 B. 0.5 C. 1 D. 5