Why are heated diode leak detectors better than corona discharge leak detectors?
A) Heated diode leak detectors are less expensive to replace.
B) Heated diode leak detectors use infrared lights in leak detection.
C) Heated diode leak detectors are not as prone to false alarms.
D) Heated diode leak detectors can detect greater amounts of coolant.
C
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____________________millet is the most widely grown millet
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A five-speed transmission is in third gear. Which is correct?
A) The 3-4 synchronizer is moved to engage third gear B) The 1-2 synchronizer is in neutral C) Both A and B D) Neither A nor B
What is the purpose of the gas burner venturi?
A) The venturi ensures that only gas enters inside the burner while air is directed into the combustion area. B) The venturi ensures that the proper amount of gas flows into the burner. C) The venturi mixes the gas and primary air by making them swirl as they pass through. D) The venturi makes the flames swirl inside the combustion chamber to increase contact with the heat exchanger and boost efficiency.
Answer the following statement(s) true (T) or false (F)
1. Wind turbines are synonymous with windmills. 2. The most common type of turbine is one with a horizontal axis and a two, three, or four bladed rotor. 3. A free-standing lattice is generally the least expensive type of tower. 4. Wind turbine systems, like photovoltaic generating systems, produce DC electricity. 5. For a grid-connected system, the only required meter is a smart meter that will keep track of the electricity the home system produces and the electricity used from the grid.