The voltage between any leg of a 480 V wye transformer and ground is:
A) 240 V. B) 208 V. C) 277 V. D) 120 V.
C
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Passive solar heating ____
a. can be used in the Northern Hemisphere without input of energy b. utilizes the sun’s rays shining from the western direction c. harnesses the natural light and heat energy that is produced by the sun, with no other input of energy d. is always used to heat an entire structure
Write the supplement of 121°48'51".
Fill in the blank(s) with the appropriate word(s).
In a two-source circuit, one source alone produces 10 mA through a branch. If the other source alone produces 8 mA in the opposite direction through the same branch, what is the total current through the branch?
A) 18 mA B) 10 mA C) 8 mA D) 2 mA
Welding is a process of joining two or more pieces of like metals by heating the material to a temperature high enough to cause softening or melting.
Answer the following statement true (T) or false (F)