What is an open piping system?
A) An open piping system has components that can be disassembled without removing them from the circuit
B) An open piping system has components that can be removed for servicing
C) An open system has some part of the circuit open to the atmosphere
D) An open piping system uses non-proprietary piping technology
Question 2
In a one pipe venturi system
A) The amount of water flowing through each individual convector is controlled by a thermostat
B) Each convector is supplied with the same temperature hot water
C) All the water flows through each convector in the loop
D) Only part of the water flows through each convector in the loop
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A combination wrench has an open end at one end and a box end at the other end.
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