SC Plumbing Contractor practice exam
What is the lifespan of a normal locate request? Begins 3 working days after the request and extends 15 working days until
expiration.
What must be done if work takes longer than 15 working An update locate request needs to be called in at least 3 full working days prior to
days? the expiration of the initial notice.
What is the maximum length of a locate notice? Not to exceed ¼ mile (1,320 feet) in five adjoining addresses.
Define 'Emergency' in the context of excavation. A sudden or unforeseen event involving clear and imminent danger to life, health, or
property, requiring immediate action.
What is required when performing emergency excavation? Oral notice is required along with a damage report.
What is the facility operator's responsibility regarding Must respond within 3 full working days using the APWA Color Code.
locate requests?
How should underground facilities greater than 3 inches be The dimension must be indicated every 25 feet.
marked?
What must excavators do before starting excavation? All Closed codes must be entered into the portal prior to the start of excavation.
What are Closed Codes? Codes that indicate a negative response; specifically, codes 10, 11, 20, or 30.
What is the tolerance zone for hand digging? 24 inches either side plus the diameter of the facility.
How can one recognize a gas leak? By smell (rotten eggs), sight (white cloud, mist, bubbles), or sound (roaring, hissing,
whistling).
What are the penalties for violations of excavation Fines up to $1,000 per violation.
provisions?
What does 'APWA' stand for? American Public Works Association.
What is the pressure loss through taps and tees for a Refer to Table E103.3(4) in the IPC.
water line?
How do you size a water line for a two-bedroom home? Calculate water fixture units (wfu) for each fixture and determine demand in gallons
per minute.
, SC Plumbing Contractor practice exam
What is the minimum size of a trap arm for a lavatory Must be increased to 1-1/2 inches due to the distance.
installed 4 feet away?
What is the minimum diameter for a horizontal drain line 2-1/2 inches.
with 7 dfu?
What is the maximum allowable length for a drain with 6 feet.
minimum size?
What is the minimum storm drain size for a roof with a 100- Refer to IPC guidelines for sizing.
year rainfall of 4 inches/hour?
What is the minimum size of a vent for a urinal with 4 dfu? 1-1/2 inches.
What is the air gap requirement for an indirect waste pipe? Shall be not less than twice the effective opening of the indirect waste pipe.
What is the recommended action if the lavatory trap is Ensure the minimum size of the trap arm is adequate for the distance.
installed in compliance with the code?
What is the proper water line size for a demand of 18 One inch.
gallons per minute?
What should be done if a gas leak is suspected? Evacuate the area and contact emergency services.
What is the significance of using APWA Color Codes? To ensure proper identification and marking of underground utilities.
What is the minimum size for a trap arm that is more than The trap arm must be increased by one nominal size.
3' long?
What is the required air gap between the indirect waste The air gap shall be not less than twice the effective opening of the indirect waste
pipe and the flood level rim? pipe.
What is an acceptable fitting at point 1F using minimum Combination (2½"x2½"x2")
sizes?
What fitting is acceptable at point 5M using minimum 4" combination
sizes?
What is the maximum distance allowed between the left- 30 inches apart, provided one compartment is not more than 6 inches deeper than
hand and right-hand tail pieces of a sink trap? the other.
What is the lifespan of a normal locate request? Begins 3 working days after the request and extends 15 working days until
expiration.
What must be done if work takes longer than 15 working An update locate request needs to be called in at least 3 full working days prior to
days? the expiration of the initial notice.
What is the maximum length of a locate notice? Not to exceed ¼ mile (1,320 feet) in five adjoining addresses.
Define 'Emergency' in the context of excavation. A sudden or unforeseen event involving clear and imminent danger to life, health, or
property, requiring immediate action.
What is required when performing emergency excavation? Oral notice is required along with a damage report.
What is the facility operator's responsibility regarding Must respond within 3 full working days using the APWA Color Code.
locate requests?
How should underground facilities greater than 3 inches be The dimension must be indicated every 25 feet.
marked?
What must excavators do before starting excavation? All Closed codes must be entered into the portal prior to the start of excavation.
What are Closed Codes? Codes that indicate a negative response; specifically, codes 10, 11, 20, or 30.
What is the tolerance zone for hand digging? 24 inches either side plus the diameter of the facility.
How can one recognize a gas leak? By smell (rotten eggs), sight (white cloud, mist, bubbles), or sound (roaring, hissing,
whistling).
What are the penalties for violations of excavation Fines up to $1,000 per violation.
provisions?
What does 'APWA' stand for? American Public Works Association.
What is the pressure loss through taps and tees for a Refer to Table E103.3(4) in the IPC.
water line?
How do you size a water line for a two-bedroom home? Calculate water fixture units (wfu) for each fixture and determine demand in gallons
per minute.
, SC Plumbing Contractor practice exam
What is the minimum size of a trap arm for a lavatory Must be increased to 1-1/2 inches due to the distance.
installed 4 feet away?
What is the minimum diameter for a horizontal drain line 2-1/2 inches.
with 7 dfu?
What is the maximum allowable length for a drain with 6 feet.
minimum size?
What is the minimum storm drain size for a roof with a 100- Refer to IPC guidelines for sizing.
year rainfall of 4 inches/hour?
What is the minimum size of a vent for a urinal with 4 dfu? 1-1/2 inches.
What is the air gap requirement for an indirect waste pipe? Shall be not less than twice the effective opening of the indirect waste pipe.
What is the recommended action if the lavatory trap is Ensure the minimum size of the trap arm is adequate for the distance.
installed in compliance with the code?
What is the proper water line size for a demand of 18 One inch.
gallons per minute?
What should be done if a gas leak is suspected? Evacuate the area and contact emergency services.
What is the significance of using APWA Color Codes? To ensure proper identification and marking of underground utilities.
What is the minimum size for a trap arm that is more than The trap arm must be increased by one nominal size.
3' long?
What is the required air gap between the indirect waste The air gap shall be not less than twice the effective opening of the indirect waste
pipe and the flood level rim? pipe.
What is an acceptable fitting at point 1F using minimum Combination (2½"x2½"x2")
sizes?
What fitting is acceptable at point 5M using minimum 4" combination
sizes?
What is the maximum distance allowed between the left- 30 inches apart, provided one compartment is not more than 6 inches deeper than
hand and right-hand tail pieces of a sink trap? the other.
