What is the purpose of the gas burner venturi?
A) The venture makes the flames swirl inside the combustion chamber to increase contact with the heat exchanger and boost efficiency
B) The venturi insures 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 insures that only gas enters inside the burner while air is directed into the combustion area
C
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The triac operates in a manner similar to that of two connected ____.
A. SCRs B. resistors C. ICs D. capacitors
¿Cuál es el problema más común que se debe resolver antes de instalar las tuberías y los sistemas de conductos?
a. El espacio. b. La eliminación de desechos. c. Los daños. d. Los protectores de metal.
Explain why contour farming and terracing usually go together
What will be an ideal response?
Which of the following types of chemical would be classified as a pesticide?
A) insecticides B) rodenticides C) herbicides D) both B and C E) all of the above