Old gas lines do not need to be purged before cutting them for removal.
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Q9: If there is any variation between the
Q10: The drawing of the installation should be
Q11: Which of the following is NOT a
Q12: The abbreviation for medical compressed air is
Q13: The principal use of rough-in sheets is
Q15: Rough-in sheets describe in general terms similar
Q16: The plan view of a set of
Q17: The abbreviation for fire protection water supply
Q18: The abbreviation for cold water is CW.
Q19: To ensure proper installation of products in
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