What type of boat requires navigation lights? O Motorboats over 20 meters in length Sailboats using power O All boats operating between sunset and sunrise O Sailboats less than 12 meters in length under sail onl​

An ammonia compressor has a 5% clearance volume and displacement rate of 80 l/s and pumps against a condensing temperature of 40°c. for two different temperatures of -10°c and 10°c, compute the mass flow rate of refrigerant assuming the clearance volumetric efficiency applies. discharge specific volume corresponding to-10°c and 10°c are 112.5 l/kg and 95 l/kg, respectively.