The inner tube of heat exchangers of water-source heat pumps have extended surfaces called ____________________, which increase the surface area for better heat transfer.
Fill in the blank(s) with the appropriate word(s).
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Good floor-slab flatness and levelness is critical in warehouses to allow _____.
a. higher safe speeds for forklifts b. proper drainage c. greater stacking heights d. use of heavier equipment
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What device is often used on a cubed-ice maker to indicate the ice bin is full?
a. Float switch b. Photoelectric eye c. Laser beam d. Pressure switch
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Discuss the difference between a proprietary system and an open system
What will be an ideal response?
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DRAM memory cells are organized in ranks and files
Indicate whether the statement is true or false
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