The temperature of the water in a cooling tower cannot be lowered below the wet-bulb temperature of the air entering the tower.
Answer the following statement true (T) or false (F)
True
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A technician needs to check the heating operation of a heat pump that has no gauge access ports. The technician should start by:
A) Check the temperature rise across the indoor coil. B) Recovering the system refrigerant using piercing pliers and installing permanent braze on service valves. C) Installing bolt on piercing valves on both the gas line and the liquid line. D) Installing bolt on piercing valves on both the high side and low side of the compressor.
What gate is often referred to as the basic gate? Why is it referred to as the basic gate?
What will be an ideal response?
Camshafts turn at which of these?
A) 1/2 crankshaft speed B) Twice crankshaft speed C) Crankshaft speed D) 1/4 crankshaft speed
During a gauge test of an air condition system your fine the suction pressure high and the discharge pressure low to normal. Which of the following could produce these gauge readings?
A. Defective thermostatic switch B. Expansion valve held open C. Expansion valve not opening enough D. Refrigerant charge low