Scale results in a low head pressure in the cooling mode and high suction pressure in the heating mode.
Answer the following statement true (T) or false (F)
False
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What is the advantage of battery conductance testing?
What will be an ideal response?
Twenty standard cartons of octal boxes weigh a total of 1,100 pounds. Find the weight per carton.
Fill in the blank(s) with the appropriate word(s).
The three-phase three-wire system is made by connecting the ____ windings of a three-phase transformer bank in ____ and connecting the three lines to a three-phase panel.
a. secondary; either wye or delta b. secondary; wye c. primary; delta d. primary; wye
Air conditioning overcurrent protective devices can never exceed what percentage of the motor-rated load current or the branch circuit selection current (whichever is greater)?
a. 150% b. 175% c. 225% d. 300%