The abbreviation for gray iron is ____.
A. GI
B. G.I.
C. GR. I.
D. GR I
Answer: C
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Motor starters are basically a contactor and overload relay mounted together. Most do not need auxiliary contacts.
Answer the following statement true (T) or false (F)
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What will be an ideal response?
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How many amps should a low-voltage fuse be rated for to protect the secondary of a low-voltage transformer used in a residential HVAC system?
A. 1 B. 3 C. 5 D. 7
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