NCCER PLUMBING LEVEL 3 EXAM
QUESTIONS WITH CORRECT EXPLAINED
ANSWERS || 100% GUARANTEED PASS!!
<RECENT VERSION>
1. What is assured when Installing Radiant Manufactured Panels? - ANSWER
✔ Movement of air to air vents is assured.
2. What is Spot Heating? - ANSWER ✔ When the Unit Heater operates for
short periods or not at all, because of more heating capacity than required.
3. Non-metallic tubing will becoming damaged if exposed to? - ANSWER ✔
Sunlight
4. When the concrete is poured, a radiant panel system must be under? -
ANSWER ✔ High Pressure
5. Air gap and minimum size - ANSWER ✔ Unobstructed vertical distance
through air between the lowest point of a water supply outlet and the flood
level rim of the fixture it discharges to.
25mm and 2x diameter of the opening of the water supply outlet in height.
6. Air Break and minimum size - ANSWER ✔ Vertical unobstructed space
between the lowest point of an indirectly connected waste soul or waste pipe
and the flood level rim to where the fixture discharges
Equal to fixture drain, no less than 25mm
,7. Branch vent - ANSWER ✔ A vent pipe that is connected at its lower end to
the junction of 2 or more vent pipes and at its upper end, either to a branch
vent or stack vent, vent stack or vent header or terminated to open air.
8. Additional circuit vent - ANSWER ✔ A vent pipe that is installed between a
circuit vent and relief vent to provide more air circulation.
9. What is not to be included in a cold water pipe calculation? - ANSWER ✔
FU for Hot water not to be included as it goes into the tank
10.What type of fixture is non-potable water permissible to use as water
supply? - ANSWER ✔
Water closet
11.what is the maximum allowable gas pressure inside a Single Family
Dwelling? - ANSWER ✔
2psig
12.Who is authorized by the act to manage or direct individuals performing
regulated work? - ANSWER ✔
Licensed Contractor
13.who within technical Safety BC has the authority to suspend or revoke a
contractors licence? - ANSWER ✔
Safety Manager
14.Who within the Technical Safety BC has the authority to issue a compliance
order? - ANSWER ✔
Safety Manager
15.Which standards association develops and publishes the requirements for
Manholes and Catch Basins? - ANSWER ✔
ASTM: American Society of Testing Materials
16.What is the recommended flow rate of water in a municipal transmission
pipe? - ANSWER ✔
5 feet per second
,17.What is the most common meter used in residential water systems? -
ANSWER ✔
Positive Displacement Meter
18.What hsall every indirect service water heater be equipped with? -
ANSWER ✔
Temperature and Pressure relief valve
19.Which fixture must have a shut off valve on the water supply pipe? -
ANSWER ✔
Water closet
20.What is the definition of "a Protection provided for a piping system with
both potable and non-potable connections downstream of the backflow
Preventer?" - ANSWER ✔
Area Isolation
21.When testing an RP static pressure drop across check 1 shall be at least
_____________ psi greater than the relief valve opening point- ANSWER ✔
3 psi
22.What is "the practice of protecting the public potable water supply by
installing backflow prevention assemblies at or near the point where the
water enters the building?" - ANSWER ✔
Premise Isolation
23.What is the prefered material for construction of Radiant Panels? -
ANSWER ✔
Plastic pipe
24.What is the best way to promote flow through a radiant panel? - ANSWER
✔
Close Spaced tees
25.What term is given for a hot water heating boiler that can operate safetly at
100F? - ANSWER ✔
Condensing boiler / high efficiency boiler
, 26.how is the length of a baseboard convector calculated? - ANSWER ✔
Heat loss / Efficiency = Length
27.What type of blue print drawing would an irrigation system be designed
with? - ANSWER ✔
Plot
28.According to the NPC which fixture can collected rainwater be used for? -
ANSWER ✔
Water closets
29.how many BTU/HR is 1 Refrigeration ton equal to? - ANSWER ✔
12,000 BTH/HR
30.what is another term for a wire coil used as an electromagnet? - ANSWER
✔
Solenoid
31.What does wire burn out mean? - ANSWER ✔
wire is severed
32.What type of electrical test is performed on a circuit when Locking out
equipment? - ANSWER ✔
Volts
33.What type of flame safe guard is used on a constant pilot? - ANSWER ✔
Thermocouple
34.What type of piping arrangment is required for a gas piping system where
condensation may collect? - ANSWER ✔
Drip pocket
35.What is the minimum diameter of gas piping that must be welded inside a
building? - ANSWER ✔
2 1/2"
36.What is the minimum spacing of yellow coloured tape or paint on a gas pipe
in a house? - ANSWER ✔
QUESTIONS WITH CORRECT EXPLAINED
ANSWERS || 100% GUARANTEED PASS!!
<RECENT VERSION>
1. What is assured when Installing Radiant Manufactured Panels? - ANSWER
✔ Movement of air to air vents is assured.
2. What is Spot Heating? - ANSWER ✔ When the Unit Heater operates for
short periods or not at all, because of more heating capacity than required.
3. Non-metallic tubing will becoming damaged if exposed to? - ANSWER ✔
Sunlight
4. When the concrete is poured, a radiant panel system must be under? -
ANSWER ✔ High Pressure
5. Air gap and minimum size - ANSWER ✔ Unobstructed vertical distance
through air between the lowest point of a water supply outlet and the flood
level rim of the fixture it discharges to.
25mm and 2x diameter of the opening of the water supply outlet in height.
6. Air Break and minimum size - ANSWER ✔ Vertical unobstructed space
between the lowest point of an indirectly connected waste soul or waste pipe
and the flood level rim to where the fixture discharges
Equal to fixture drain, no less than 25mm
,7. Branch vent - ANSWER ✔ A vent pipe that is connected at its lower end to
the junction of 2 or more vent pipes and at its upper end, either to a branch
vent or stack vent, vent stack or vent header or terminated to open air.
8. Additional circuit vent - ANSWER ✔ A vent pipe that is installed between a
circuit vent and relief vent to provide more air circulation.
9. What is not to be included in a cold water pipe calculation? - ANSWER ✔
FU for Hot water not to be included as it goes into the tank
10.What type of fixture is non-potable water permissible to use as water
supply? - ANSWER ✔
Water closet
11.what is the maximum allowable gas pressure inside a Single Family
Dwelling? - ANSWER ✔
2psig
12.Who is authorized by the act to manage or direct individuals performing
regulated work? - ANSWER ✔
Licensed Contractor
13.who within technical Safety BC has the authority to suspend or revoke a
contractors licence? - ANSWER ✔
Safety Manager
14.Who within the Technical Safety BC has the authority to issue a compliance
order? - ANSWER ✔
Safety Manager
15.Which standards association develops and publishes the requirements for
Manholes and Catch Basins? - ANSWER ✔
ASTM: American Society of Testing Materials
16.What is the recommended flow rate of water in a municipal transmission
pipe? - ANSWER ✔
5 feet per second
,17.What is the most common meter used in residential water systems? -
ANSWER ✔
Positive Displacement Meter
18.What hsall every indirect service water heater be equipped with? -
ANSWER ✔
Temperature and Pressure relief valve
19.Which fixture must have a shut off valve on the water supply pipe? -
ANSWER ✔
Water closet
20.What is the definition of "a Protection provided for a piping system with
both potable and non-potable connections downstream of the backflow
Preventer?" - ANSWER ✔
Area Isolation
21.When testing an RP static pressure drop across check 1 shall be at least
_____________ psi greater than the relief valve opening point- ANSWER ✔
3 psi
22.What is "the practice of protecting the public potable water supply by
installing backflow prevention assemblies at or near the point where the
water enters the building?" - ANSWER ✔
Premise Isolation
23.What is the prefered material for construction of Radiant Panels? -
ANSWER ✔
Plastic pipe
24.What is the best way to promote flow through a radiant panel? - ANSWER
✔
Close Spaced tees
25.What term is given for a hot water heating boiler that can operate safetly at
100F? - ANSWER ✔
Condensing boiler / high efficiency boiler
, 26.how is the length of a baseboard convector calculated? - ANSWER ✔
Heat loss / Efficiency = Length
27.What type of blue print drawing would an irrigation system be designed
with? - ANSWER ✔
Plot
28.According to the NPC which fixture can collected rainwater be used for? -
ANSWER ✔
Water closets
29.how many BTU/HR is 1 Refrigeration ton equal to? - ANSWER ✔
12,000 BTH/HR
30.what is another term for a wire coil used as an electromagnet? - ANSWER
✔
Solenoid
31.What does wire burn out mean? - ANSWER ✔
wire is severed
32.What type of electrical test is performed on a circuit when Locking out
equipment? - ANSWER ✔
Volts
33.What type of flame safe guard is used on a constant pilot? - ANSWER ✔
Thermocouple
34.What type of piping arrangment is required for a gas piping system where
condensation may collect? - ANSWER ✔
Drip pocket
35.What is the minimum diameter of gas piping that must be welded inside a
building? - ANSWER ✔
2 1/2"
36.What is the minimum spacing of yellow coloured tape or paint on a gas pipe
in a house? - ANSWER ✔
