A plumber is installing a valve on a water supply line that will frequently remain completely open. The best
type of valve to install is a _____ valve.
A) check
B) ball
C) gate
D) globe
Answer: C
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? Identify and state the historical significance of the First Anglo-Powhatan War.
What will be an ideal response?
Spur gears carry more load than equivalent sized helical gears and operate more quietly and smoothly.
Answer the following statement true (T) or false (F)
What can happen if you do not purge with nitrogen while brazing?
A) The brazing will take longer without the extra heat from the nitrogen. B) Oxides inside the pipe may form and eventually stop up refrigeration components. C) Leak checking will take longer. D) You run the risk of an explosion.
Low frequency operation is the most reliable for a triac
Indicate whether the statement is true or false