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90. No water piping supplied by any _______ water supply system shall be interconnected to an approved city water supply system or any other source of supply without the approval of the Administrative Authority, Health Department, or other agencies. a.individual b. private c. None of the above 91. Direct connections between potable water pipings and sewer-connected wastes shall not exist under any condition with or without backflow protection. Where potable water is discharged to the drainage system, it shall be by means of an approved airgap of two (2) pipe diameters from the supply outlet and the top surface of the drainage inlet, but in no case shall the gap be less than ____ mm. Connection may be made to the inlet side of a trap provided that an approved atmospheric vacuum breaker is installed no less than ______mm above the flood level rim of such trapped fixture, so that at no time will any such device be subjected to any back· pressure. of not 93. Unions - unions shall be installed in the water supply piping within _____ meter away from regulating equipment, water heater, conditioning tank and similar equipment which require removal for servicing or replacement. 94. No building water service pipe shall be less than _____in diameter.
FINAL PRE BOARD - PLUMBING CODE & PRACTICAL PROBLEM 1 Engr. Olympio M. Lopez Jr., RMP, ME, CE & REB Cell No.: 0927-5720035 Landline: (02) 782-9086 95. Which of the following elements is a substantial part of the construction documents required in order to obtain plumbing permit? a. Floor plans b. riser diagrams c. both a & b d. neither a nor b 96. Construction documents presented with a permit application may be required to provide information on __________________________.