Why are variable speed condenser fan motors used?
What will be an ideal response?
They are used as a method of head pressure control. As the ambient temperature drops, the condenser fan motor will slow down to maintain head pressure.
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The ____________________ refers to the angle between the GMA welding gun and the work as it relates to the direction of travel.
Fill in the blank(s) with the appropriate word(s).
What type of screwdriver will be used when space is limited?
A. square-shank B. round-shank C. stubby D. ratcheting
All these statements are correct EXCEPT ________
A) Pure water has a pH of 7, meaning it is neutral. B) A liquid is considered ignitable if it has a flash point below 140°F (60°C) C) AC refrigerants can be released into the air in small amounts D) Lower pH numbers indicate a substance is more acidic.
Foundations of wood are referred to as ____ foundations, and they can be fabricated in a shop or on the job site by using wood that is pressure-treated to withstand moisture and pest damage from ground contact.
A. permawood B. woodgrain C. solid wood D. permanent wood