Alberta Plumber
Apprenticeship Certification
Exam (Third Period) Questions
And Correct Answers
Safety & Regulations
• Q1: What is the main hazard when working in confined spaces?
o ,,,,answer,,,,: Oxygen deficiency
o Source:
• Q2: What does WHMIS refer to in the workplace?
o ,,,,answer,,,,: Hazard communication
o Source:
• Q3: What is the minimum clearance required around a cleanout for
proper access?
o ,,,,answer,,,,: 18 inches
o Source:
• Q4: Which Canadian document serves as the primary source for
plumbing code requirements?
o ,,,,answer,,,,: National Plumbing Code of Canada (NPC)
o Source:
, • Q5: What is the required Personal Protective Equipment (PPE)
when cutting pipe?
o ,,,,answer,,,,: Gloves and eye protection
o Source:
• Q6: What color is used to identify a compressed air line for safety
purposes?
o ,,,,answer,,,,: Yellow
o Source:
🛠️ Tools & Materials
• Q7: What is the primary use for a pipe wrench?
o ,,,,answer,,,,: Turning pipes
o Source:
• Q8: Which tool is best for getting a clean cut on copper tubing?
o ,,,,answer,,,,: Tubing cutter
o Source:
• Q9: What is the function of thread sealant?
o ,,,,answer,,,,: To prevent leaks at threaded joints
o Source:
• Q10: Which tool is typically used to cut threads on steel pipe?
o ,,,,answer,,,,: Die and stock
o Source:
• Q11: Which type of wrench is best for tightening large hex nuts on
pipe fittings?
o ,,,,answer,,,,: Pipe wrench
o Source:
• Q12: What is the standard wire gauge typically used for
connecting a sump pump?
, o ,,,,answer,,,,: 12 AWG
o Source:
• Q13: What is the purpose of flux in the soldering process?
o ,,,,answer,,,,: To clean and prepare the metal surface
o Source:
🚰 Drain, Waste, and Vent (DWV) Systems
• Q14: What is the primary purpose of a trap in a plumbing system?
o ,,,,answer,,,,: To prevent sewer gas from entering the
building
o Source:
• Q15: What is the standard minimum slope required for horizontal
drainage piping?
o ,,,,answer,,,,: 1/4 inch per foot
o Source:
• Q16: What is a typical cause of siphonage and back pressure in a
DWV system?
o ,,,,answer,,,,: Improper DWV Venting
o Source:
• Q17: What is the primary role of a vent in a plumbing system
beyond preventing sewer gases?
o ,,,,answer,,,,: To obstruct vermin (mice, snakes, rats)
o Source:
• Q18: Which drainage fitting allows you to join horizontal and
vertical runs centrally?
o ,,,,answer,,,,: Double Sanitary Tee
o Source:
Apprenticeship Certification
Exam (Third Period) Questions
And Correct Answers
Safety & Regulations
• Q1: What is the main hazard when working in confined spaces?
o ,,,,answer,,,,: Oxygen deficiency
o Source:
• Q2: What does WHMIS refer to in the workplace?
o ,,,,answer,,,,: Hazard communication
o Source:
• Q3: What is the minimum clearance required around a cleanout for
proper access?
o ,,,,answer,,,,: 18 inches
o Source:
• Q4: Which Canadian document serves as the primary source for
plumbing code requirements?
o ,,,,answer,,,,: National Plumbing Code of Canada (NPC)
o Source:
, • Q5: What is the required Personal Protective Equipment (PPE)
when cutting pipe?
o ,,,,answer,,,,: Gloves and eye protection
o Source:
• Q6: What color is used to identify a compressed air line for safety
purposes?
o ,,,,answer,,,,: Yellow
o Source:
🛠️ Tools & Materials
• Q7: What is the primary use for a pipe wrench?
o ,,,,answer,,,,: Turning pipes
o Source:
• Q8: Which tool is best for getting a clean cut on copper tubing?
o ,,,,answer,,,,: Tubing cutter
o Source:
• Q9: What is the function of thread sealant?
o ,,,,answer,,,,: To prevent leaks at threaded joints
o Source:
• Q10: Which tool is typically used to cut threads on steel pipe?
o ,,,,answer,,,,: Die and stock
o Source:
• Q11: Which type of wrench is best for tightening large hex nuts on
pipe fittings?
o ,,,,answer,,,,: Pipe wrench
o Source:
• Q12: What is the standard wire gauge typically used for
connecting a sump pump?
, o ,,,,answer,,,,: 12 AWG
o Source:
• Q13: What is the purpose of flux in the soldering process?
o ,,,,answer,,,,: To clean and prepare the metal surface
o Source:
🚰 Drain, Waste, and Vent (DWV) Systems
• Q14: What is the primary purpose of a trap in a plumbing system?
o ,,,,answer,,,,: To prevent sewer gas from entering the
building
o Source:
• Q15: What is the standard minimum slope required for horizontal
drainage piping?
o ,,,,answer,,,,: 1/4 inch per foot
o Source:
• Q16: What is a typical cause of siphonage and back pressure in a
DWV system?
o ,,,,answer,,,,: Improper DWV Venting
o Source:
• Q17: What is the primary role of a vent in a plumbing system
beyond preventing sewer gases?
o ,,,,answer,,,,: To obstruct vermin (mice, snakes, rats)
o Source:
• Q18: Which drainage fitting allows you to join horizontal and
vertical runs centrally?
o ,,,,answer,,,,: Double Sanitary Tee
o Source:
