The voltages and currents used in the primary circuits of substations are reduced to usable levels by _____.
a. distribution transformers
b. instrument transformers
c. pole-mounted transformers
d. sealed self-cooled transformers
b. instrument transformers
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Which of the following is a hazard that can occur when the steam trap fails to open?
A. Wasted steam B. Leaking piping C. Stress cracking D. Upset conditions
¿Cuál es la superficie de un cono con un diámetro de 6 pies (1,82 m) y una altura inclinada de 18 pies (5,48 m)?
a. 678,24 pies cuadrados (206,73 m²) b. 339,12 pies cuadrados (103,36 m²) c. 169,56 pies cuadrados (51,682 m²) d. 84,78 pies cuadrados (25,841 m²)
Muscador albus may be the first biological fumigant
Indicate whether the statement is true or false
The ____ serves as a place either for welcoming guests or saying good-byes.
A. study B. foyer C. nook D. service entry