Los electrodos de placa, pica y tubería deben tener una resistencia a tierra igual o inferior a _____ ohmios.
a. 10
b. 25
c. 40
d. 60
b. 25
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____________________ is a process that cures rubber and causes it to set in a predetermined shape.
Fill in the blank(s) with the appropriate word(s).
How can you easily maintain SDS documents?
A) Throw the SDSs into a box and put it in a closet B) Put SDSs into a manila envelope within the service vehicle C) Log all of the SDSs into a computer system D) Alphabetize the SDSs by active ingredient
Residential heating systems typically range from:
A) 75,000 BTU to 200,000 BTU. B) 100,000 BTU to 120,000 BTU. C) 75,000 BTU to 125,000 BTU. D) 50,000 BTU to 150,000 BTU.
High temperature refrigeration is that produced by ____.
A. heat from a furnace B. an air-conditioning system C. the vegetable cooling system of a refrigerator D. the freezer section of a refrigerator