Master Plumbing {Plumbing + HVAC + Gas +
Safety} 2026-2027 Comprehensive Frequently
Tested Exam Questions With Verified
Multiple Choice and Conceptual Actual 100%
Correct Detailed Answers
Guaranteed Pass!!Current Update!!
1. The most common physical characteristics used to measure the quality of
water are temperature, taste, colour, odour, and what?
A. Turbidity
B. Flow
C. Grains
D. Bacteria - ANSWER A. Turbidity
2. Which of the following does streptococci cause?
A. Pneumonia
B. Tetanus
C. Strep throat and blood poisoning
D. Abscesses, pustules, and boils - ANSWER C. Strep throat and
blood poisoning
3. What type of plastic pipe is used for distilled water and de-ionized water
systems?
A. Polybutylene
B. Pigmented polypropylene
, C. Unpigmented polypropylene
D. Glazed crosslink polyethylene - ANSWER C. Unpigmented
polypropylene
4. What is the possible consequence if you perform infection control
procedures incorrectly and a client becomes infected or harmed?
A. You may receive jail time if found guilty of negligence
B. You will have to perform community service hours
C. You may be found legally responsible for their injuries or infection
D. You will be fined $150,000 - ANSWER A. You may receive jail time
if found guilty of negligence.
5. When using grooved pipe from one manufacturer, the fittings from another
manufacturer may be used.
6. True or False? - ANSWER False
7. A settlement loop is installed in water distribution lines that are ______
inches or less:
A. 2
B. 3
C. 5
D. 4 - ANSWER A. 2
8. Which of the following must the base of every soil or waste stack contain?
A. Building Drain
B. Floor Drain
, C. Cleanout and expansion joint
D. TY - ANSWER C. A cleanout and expansion joint.
9. Where would an oil interceptor most likely be found:
A. Commercial Kitchen
B. Laundromat
C. Dry cleaning plant.
D. Car Wash - ANSWER C. Dry Cleaning Plant
10.A water purveyor has the primary responsibility of:
A. Ensuring safe removal of sewer waste.
B. Ensuring potable water is handled safely within a consumers
residence
C. Providing the public with a safe and potable water supply.
D. Purifying all water sources. - ANSWER C. Providing the public with
a safe and potable water supply.
11.A one inch water service to a building may have a _____ valve as the shut-
off valve for the building.
A. Backflow
B. Separate Drain
C. Stop-and-drain
D. Ball cock - ANSWER C. Stop-and-drain
12.An air conditioner that discharges 0.05 L/s of condensate into a floor drain,
would equate to how many fixture units?
A. 2
B. 1
C. 5
, D. 11 - ANSWER A. 2
13.After the inspection of a hot water heating system shows that the system
pressure is in excess of the designed operating pressure. Which device will
cause this problem?
A. Pressure relief valve
B. Water-feed valve
C. Circulator
D. Outdoor compensator - ANSWER B. Water-feed valve
14.The state in which matter exists can be influence by these two factors:
A. Volume and weight
B. Pressure and weight
C. Temperature and pressure
D. Hot and cold - ANSWER C. Temperature and pressure
15.If the zone valve drive motor fails to operate the plumber must:
A. Recalibrate the heat anticipator
B. Add glycol to the system
C. Replace the defective motor
D. Increase the system pressure - ANSWER C. Replace the defective
motor
16.A 120 Volt hot surface igniter can reach temperatures up to ____F
A. 1800
B. 3100
C. 2600
D. 1200 - ANSWER C. 2600
Safety} 2026-2027 Comprehensive Frequently
Tested Exam Questions With Verified
Multiple Choice and Conceptual Actual 100%
Correct Detailed Answers
Guaranteed Pass!!Current Update!!
1. The most common physical characteristics used to measure the quality of
water are temperature, taste, colour, odour, and what?
A. Turbidity
B. Flow
C. Grains
D. Bacteria - ANSWER A. Turbidity
2. Which of the following does streptococci cause?
A. Pneumonia
B. Tetanus
C. Strep throat and blood poisoning
D. Abscesses, pustules, and boils - ANSWER C. Strep throat and
blood poisoning
3. What type of plastic pipe is used for distilled water and de-ionized water
systems?
A. Polybutylene
B. Pigmented polypropylene
, C. Unpigmented polypropylene
D. Glazed crosslink polyethylene - ANSWER C. Unpigmented
polypropylene
4. What is the possible consequence if you perform infection control
procedures incorrectly and a client becomes infected or harmed?
A. You may receive jail time if found guilty of negligence
B. You will have to perform community service hours
C. You may be found legally responsible for their injuries or infection
D. You will be fined $150,000 - ANSWER A. You may receive jail time
if found guilty of negligence.
5. When using grooved pipe from one manufacturer, the fittings from another
manufacturer may be used.
6. True or False? - ANSWER False
7. A settlement loop is installed in water distribution lines that are ______
inches or less:
A. 2
B. 3
C. 5
D. 4 - ANSWER A. 2
8. Which of the following must the base of every soil or waste stack contain?
A. Building Drain
B. Floor Drain
, C. Cleanout and expansion joint
D. TY - ANSWER C. A cleanout and expansion joint.
9. Where would an oil interceptor most likely be found:
A. Commercial Kitchen
B. Laundromat
C. Dry cleaning plant.
D. Car Wash - ANSWER C. Dry Cleaning Plant
10.A water purveyor has the primary responsibility of:
A. Ensuring safe removal of sewer waste.
B. Ensuring potable water is handled safely within a consumers
residence
C. Providing the public with a safe and potable water supply.
D. Purifying all water sources. - ANSWER C. Providing the public with
a safe and potable water supply.
11.A one inch water service to a building may have a _____ valve as the shut-
off valve for the building.
A. Backflow
B. Separate Drain
C. Stop-and-drain
D. Ball cock - ANSWER C. Stop-and-drain
12.An air conditioner that discharges 0.05 L/s of condensate into a floor drain,
would equate to how many fixture units?
A. 2
B. 1
C. 5
, D. 11 - ANSWER A. 2
13.After the inspection of a hot water heating system shows that the system
pressure is in excess of the designed operating pressure. Which device will
cause this problem?
A. Pressure relief valve
B. Water-feed valve
C. Circulator
D. Outdoor compensator - ANSWER B. Water-feed valve
14.The state in which matter exists can be influence by these two factors:
A. Volume and weight
B. Pressure and weight
C. Temperature and pressure
D. Hot and cold - ANSWER C. Temperature and pressure
15.If the zone valve drive motor fails to operate the plumber must:
A. Recalibrate the heat anticipator
B. Add glycol to the system
C. Replace the defective motor
D. Increase the system pressure - ANSWER C. Replace the defective
motor
16.A 120 Volt hot surface igniter can reach temperatures up to ____F
A. 1800
B. 3100
C. 2600
D. 1200 - ANSWER C. 2600
