Multiple Choice Question (MCQ)
Question: Which is the numerical designation of ammonia refrigerant?
A.
700 + ( Molecular mass of NH3) = 717
B.
700 + (Molecular mass of NH3) = 718
C.
700 + (Molecular mass of NH3) = 719
D.
700 + (Molecular mass of NH 3) = 720
Correct Answer: 700 + ( Molecular mass of NH3) = 717