A refrigerant blend with a glide of 2F or less would be considered:
A) A compound. B) A high glide blend.
C) An azeotrope. D) A low glide blend.
[Ques. 2] In a water-cooled condenser, what do an increase in head pressure and a decrease in temperature difference across the condenser indicate?
A) Undersized condenser B) Low water flow
C) Scaling on tubing D) Low-pH water
[Ques. 3] What is galvanized iron pipe?
A) Galvanized iron pipe is dipped in zinc to make it resistant to corrosion.
B) Galvanized iron pipe is simply another name for steel pipe.
C) Galvanized iron pipe has an outer Teflon coating to help it resist corrosion.
D) Galvanized iron pipe has been treated to prevent galvanic corrosion.
[Ques. 4] Cooling towers in which the water circulating in the tower is separate from the water circulating through the condenser are called:
A) Evaporative cooling towers. B) Closed-loop cooling towers.
C) Open-loop cooling towers. D) Regenerative cooling towers.
[Ques. 5] An evaporative condenser:
A) Works by evaporating water to cool the condenser coil.
B) Is really just another name for evaporator.
C) Works by evaporating refrigerant to cool the condenser coil.
D) Cools air through the evaporation of refrigerant inside the condenser.
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