ALABAMA JOURNEYMAN PLUMBER EXAM – QUESTIONS AND ANSWERS | VERIFIED
AND WELL DETAILED ANSWERS | PLUS RATIONALES | GUARANTEED PASS | LATEST
EXAM UPDATE
CORE DOMAINS
Administrative and General Regulations
Fixtures, Faucets, and Fixture Fittings
Water Heaters and Storage Tanks
Water Supply and Distribution Systems
Sanitary Drainage Systems
Vents and Venting Systems
Traps, Interceptors, and Separators
Storm Drainage and Special Piping
Fuel Gas Piping and Equipment
Professional Ethics and Safety Standards
, INTRODUCTION
The Alabama Journeyman Plumber Exam is a comprehensive assessment designed to
evaluate the competency, technical proficiency, and safety awareness of individuals
seeking licensure within the state. This exam ensures that practitioners possess the
requisite knowledge to install, maintain, and repair plumbing systems in compliance
with state-adopted codes and standards. The assessment comprises multiple-choice
and scenario-based questions that mirror real-world challenges encountered in the
field. By focusing on critical thinking and the application of regulatory requirements,
the exam verifies that candidates can make sound decisions regarding public health
and safety. Mastery of drainage, venting, and fuel gas systems is essential for a
successful outcome.
SECTION ONE: QUESTIONS 1–100
1. What is the minimum required size for a building sewer in a residential application?
A. 2 inches
B. 3 inches
C. 4 inches
D. 6 inches
🟢 B. 3 inches
,🔴 Explanation: Under standard plumbing codes and Alabama amendments, a building
sewer must be at least 3 inches in diameter to prevent blockages from solids.
2. A bathroom group consists of a water closet, a lavatory, and a bathtub. What is the
total drainage fixture unit (DFU) value for this group?
A. 3 DFU
B. 5 DFU
C. 6 DFU
D. 7 DFU
🟢 B. 5 DFU
🔴 Explanation: Standard DFU values for a bathroom group (private use) typically
calculate to 5 DFU based on the cumulative load of the specific fixtures.
3. Which of the following materials is prohibited for use in a water distribution system
located inside a building?
A. Copper Type L
B. PEX
C. CPVC
D. Cellular core PVC
, 🟢 D. Cellular core PVC
🔴 Explanation: Cellular core PVC is restricted to DWV (Drain, Waste, and Vent) systems
and lacks the pressure rating required for water distribution.
4. When installing a water heater in a garage, the ignition source must be located at
least how many inches above the floor?
A. 6 inches
B. 12 inches
C. 18 inches
D. 24 inches
🟢 C. 18 inches
🔴 Explanation: Elevating the ignition source to 18 inches minimizes the risk of igniting
flammable vapors, such as gasoline, which tend to settle near the floor.
5. What is the maximum distance a 2-inch floor drain trap can be placed from its vent?
A. 5 feet
B. 8 feet
C. 10 feet
D. 12 feet
AND WELL DETAILED ANSWERS | PLUS RATIONALES | GUARANTEED PASS | LATEST
EXAM UPDATE
CORE DOMAINS
Administrative and General Regulations
Fixtures, Faucets, and Fixture Fittings
Water Heaters and Storage Tanks
Water Supply and Distribution Systems
Sanitary Drainage Systems
Vents and Venting Systems
Traps, Interceptors, and Separators
Storm Drainage and Special Piping
Fuel Gas Piping and Equipment
Professional Ethics and Safety Standards
, INTRODUCTION
The Alabama Journeyman Plumber Exam is a comprehensive assessment designed to
evaluate the competency, technical proficiency, and safety awareness of individuals
seeking licensure within the state. This exam ensures that practitioners possess the
requisite knowledge to install, maintain, and repair plumbing systems in compliance
with state-adopted codes and standards. The assessment comprises multiple-choice
and scenario-based questions that mirror real-world challenges encountered in the
field. By focusing on critical thinking and the application of regulatory requirements,
the exam verifies that candidates can make sound decisions regarding public health
and safety. Mastery of drainage, venting, and fuel gas systems is essential for a
successful outcome.
SECTION ONE: QUESTIONS 1–100
1. What is the minimum required size for a building sewer in a residential application?
A. 2 inches
B. 3 inches
C. 4 inches
D. 6 inches
🟢 B. 3 inches
,🔴 Explanation: Under standard plumbing codes and Alabama amendments, a building
sewer must be at least 3 inches in diameter to prevent blockages from solids.
2. A bathroom group consists of a water closet, a lavatory, and a bathtub. What is the
total drainage fixture unit (DFU) value for this group?
A. 3 DFU
B. 5 DFU
C. 6 DFU
D. 7 DFU
🟢 B. 5 DFU
🔴 Explanation: Standard DFU values for a bathroom group (private use) typically
calculate to 5 DFU based on the cumulative load of the specific fixtures.
3. Which of the following materials is prohibited for use in a water distribution system
located inside a building?
A. Copper Type L
B. PEX
C. CPVC
D. Cellular core PVC
, 🟢 D. Cellular core PVC
🔴 Explanation: Cellular core PVC is restricted to DWV (Drain, Waste, and Vent) systems
and lacks the pressure rating required for water distribution.
4. When installing a water heater in a garage, the ignition source must be located at
least how many inches above the floor?
A. 6 inches
B. 12 inches
C. 18 inches
D. 24 inches
🟢 C. 18 inches
🔴 Explanation: Elevating the ignition source to 18 inches minimizes the risk of igniting
flammable vapors, such as gasoline, which tend to settle near the floor.
5. What is the maximum distance a 2-inch floor drain trap can be placed from its vent?
A. 5 feet
B. 8 feet
C. 10 feet
D. 12 feet
