What is the maximum safe fill weight of a recovery cylinder with a tare weight of 30 lb, a water capacity of 40 lb, holding a refrigerant with a specific gravity of 1.2?
A) (30 lb + 40 lb) 0.8 = 56 lb (rounded) B) 30 lb + 40 lb = 70 lb (rounded)
C) 30 lb + (40 lb 0.8 1.2 ) = 68 lb (rounded) D) (30 lb + 40 lb) 1.2 = 84 lb (rounded)
Question 2
Good electrical insulators include:
A) Ceramic, rubber, and plastic. B) Gold, silver, and copper.
C) Copper, aluminum, and steel. D) Steel, iron, and aluminum.
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