Heating, Cooling Equipment & Water Heaters — ICC M1 Practice Questions

26 questions · 21% of the ICC M1 exam

Worked questions

1. A fuel gas piping system is being installed in a residential building. Which of the following is a requirement for the piping according to the 2024 International Residential Code?

AThe piping must be installed at least 18 inches above the floor.
BThe piping must be made of Schedule 40 steel.
The piping must be equipped with a gas shut-off valve at each connection.
DThe piping must be insulated to prevent heat loss.

Exam tip

Always verify that the fuel gas piping meets the specific requirements for safety in the IRC.

Why C is correct

Option C is correct because the 2024 IRC requires a gas shut-off valve at each connection for safety reasons. Options A, B, and D are incorrect as they do not align with the specific requirements for fuel gas piping in the IRC.

2. A heat pump is installed in a residential garage. The inspector notices that the unit is not equipped with a low-voltage transformer. What should the inspector do?

AOrder the removal of the heat pump.
Issue a notice of violation and allow the homeowner to correct the issue within 30 days.
CAccept the installation as compliant with the code.
DRecommend the installation of a different type of heating system.

Exam tip

Always verify that heat pumps are equipped with the necessary low-voltage transformers as required by the code.

Why B is correct

According to Section M1508.1.1 of the 2024 International Residential Code, heat pumps shall be equipped with a low-voltage transformer. The inspector should issue a notice of violation and allow the homeowner to correct the issue.

3. A residential building is equipped with a split-system air conditioning unit. During the inspection, the inspector notices that the outdoor unit is installed on a concrete slab. What is the minimum clearance required between the outdoor unit and the slab, according to the 2024 International Residential Code?

A6 inches
12 inches
C18 inches
D24 inches

Exam tip

Always check the minimum clearances for outdoor equipment to ensure proper installation and performance.

Why B is correct

According to Section M1503.1.2 of the 2024 International Residential Code, the minimum clearance between the outdoor unit and the slab or ground shall be 12 inches to allow for proper air flow and to prevent damage to the unit.

4. An air conditioner is installed on a residential roof. The inspector notices that the unit is not properly grounded. What is the correct action?

AOrder the removal of the air conditioner from the roof.
Issue a notice of violation and allow the homeowner to correct the issue within 30 days.
CAccept the installation as compliant with the code.
DRecommend the installation of a different type of air conditioner.

Exam tip

Ensure that all electrical equipment is properly grounded to prevent electrical hazards.

Why B is correct

According to Section M1509.1.1 of the 2024 International Residential Code, all electrical equipment, including air conditioners, shall be properly grounded. The inspector should issue a notice of violation and allow the homeowner to correct the issue.

22 more in the bank

Answers and explanations for these are in the app.

A bathroom fan is being installed in a residential building. Which of the following is a requirement for the installation of the fan?
A bathroom fan is installed in a residential bathroom. The inspector notices that the fan is not properly vented to the outside. What is the appropriate action?
A gas-fired furnace is being installed in a residential building. Which of the following is a requirement for the installation of the venting system?
A gas furnace is being installed in a residential building. Which of the following is a requirement for the venting system according to the 2024 International Residential Code?
A gas furnace is installed in a residential basement. During the inspection, the inspector notices that the furnace's vent pipe is routed through a bedroom. What is the appropriate action?
A heat pump is being replaced in a residential building. Which of the following is a requirement for the installation of the unit?
A natural gas line is being replaced in a residential building. Which of the following is a requirement for the installation of the new line?
A natural gas line is installed in a residential kitchen. The inspector observes that the line is not properly supported. What is the correct action?
A solar water heater is installed in a residential attic. The inspector observes that the unit is not equipped with a temperature-limiting device. What should the inspector do?
A tankless water heater is being installed in a residential building. Which of the following is a requirement for the installation of the unit?
A tankless water heater is being installed in a residential kitchen. Which of the following is a requirement for the gas piping according to the 2024 International Residential Code?
A tankless water heater is installed in a residential kitchen. The inspector observes that the unit is not equipped with a temperature-pressure relief valve. What should the inspector do?
A water heater is being replaced in a residential building. Which of the following is a requirement for the installation of the unit?
An air conditioner is installed on a residential balcony. The inspector notices that the unit is not securely anchored. What is the correct action?
An air conditioner unit is being installed in a residential building. Which of the following is a requirement for the installation of the unit?
An air conditioner unit is being replaced in a residential building. Which of the following is NOT a requirement for the installation of the unit?
An inspector is checking the installation of a new electric water heater. Which of the following is a requirement for the electrical wiring according to the 2024 International Residential Code?
An inspector is checking the ventilation of a kitchen range hood. Which of the following is a minimum requirement for the venting system according to the 2024 International Residential Code?
An inspector is reviewing the installation of a new boiler. Which of the following is a requirement for the boiler’s venting system according to the 2024 International Residential Code?
An inspector is reviewing the installation of a new central air conditioning unit. Which of the following conditions indicates a potential problem with the unit’s refrigerant charge?
An inspector is reviewing the installation of a new gas-fired water heater in a residential building. The water heater is installed in a basement with a concrete floor. What is the correct clearance required between the water heater and the floor, as per the 2024 International Residential Code?
An inspector is reviewing the installation of a new split air conditioning system. Which of the following is a requirement for the refrigerant piping according to the 2024 International Residential Code?

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Heating, Cooling Equipment & Water Heaters — ICC M1 Practice Questions

Worked questions

1. A fuel gas piping system is being installed in a residential building. Which of the following is a requirement for the piping according to the 2024 International Residential Code?

2. A heat pump is installed in a residential garage. The inspector notices that the unit is not equipped with a low-voltage transformer. What should the inspector do?

4. An air conditioner is installed on a residential roof. The inspector notices that the unit is not properly grounded. What is the correct action?

22 more in the bank

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