Which of the following statement is correct for ammonia as a refrigera – McqOptions

MCQOPTIONS

1.	Which of the following statement is correct for ammonia as a refrigerant?
A.	It is toxic to mucous membranes.
B.	it requires large displacement per TR compared to fluoro carbons.
C.	It reacts with copper and its alloys.
D.	all of these
Answer» E.

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