Chilled water systems use a primary refrigerant to remove heat from a secondary refrigerant in a chiller unit. What is the secondary refrigerant in such systems?

A) R-22 B) Water C) R-134A D) Ammonia


B

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____________________ testing can include employees conducting self-assessments after an exercise by completing feedback surveys indicating what they thought worked well and what did not.

Fill in the blank(s) with the appropriate word(s).

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Describe how and why zero geometric tolerance is specified at MMC.

What will be an ideal response?

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The difference between living and non-living things is:

A) Humans are separate from nature because they are conscious B) Living things have needs and efforts to satisfy those needs C) There is no difference D) All of the above

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What should always be present on a cylinder when it is in storage?

A. label B. lockout C. protector cap D. ground wire

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