EstatePass

Combustion Air — Texas ACR A Practice Questions

12 questions · 5% of the Texas ACR A exam

Worked questions

1. A hospital in Texas is planning to install a new ventilation system for a patient room. According to the 2024 UMC, what is the minimum ventilation rate required for a patient room in a hospital?

  • A5 cubic feet per minute per square foot of floor area.
  • B10 cubic feet per minute per square foot of floor area.
  • C15 cubic feet per minute per square foot of floor area.
  • 20 cubic feet per minute per square foot of floor area.

Exam tip

Always check the specific requirements for healthcare facilities as they have unique ventilation needs.

Why D is correct

The correct answer is option D, as per the 2024 UMC, Section 403.2.1, the minimum ventilation rate for a patient room in a hospital is 20 cubic feet per minute per square foot of floor area. Options A, B, and C are incorrect as they do not meet the code requirements.

2. A manufacturing plant in Texas is upgrading its boiler system. According to the Texas Occupations Code Chapter 1302, what is the process for obtaining a permit for the upgrade?

  • ANo permit required
  • BSubmit a detailed plan to the local fire marshal
  • Submit a detailed plan to the Texas Department of State Health Services
  • DSubmit a detailed plan to the local building department

Exam tip

Be aware of the specific regulatory bodies responsible for different types of equipment upgrades.

Why C is correct

The Texas Occupations Code Chapter 1302 requires that any upgrades to boiler systems be submitted to the Texas Department of State Health Services for permit approval.

3. A residential building in Texas is equipped with a natural gas furnace. The furnace has a rated input of 100,000 BTU/h. According to the 2024 IMC, what is the minimum outdoor air supply required for this furnace?

  • A500 CFM
  • 750 CFM
  • C1000 CFM
  • D1500 CFM

Exam tip

Remember to always check the specific fuel type and input rating when determining the required combustion air.

Why B is correct

The 2024 IMC requires a minimum of 0.5 cfm per 1000 BTU of input for natural gas furnaces. For a 100,000 BTU/h furnace, this translates to 50 cfm, which is rounded up to 750 CFM.

5. A school in Texas is installing a new heating system. According to the 2024 IMC, what is the minimum ventilation rate required for classrooms with a natural gas furnace?

  • 0.5 cfm per square foot
  • B1.0 cfm per square foot
  • C1.5 cfm per square foot
  • D2.0 cfm per square foot

Exam tip

Always check the specific fuel type and application when determining the required ventilation rate.

Why A is correct

The 2024 IMC requires a minimum ventilation rate of 0.5 cfm per square foot for classrooms with a natural gas furnace.

6. A school in Texas is required to perform annual testing of its combustion appliances. According to the Texas Administrative Code, who is responsible for conducting these tests?

  • AThe school's maintenance staff.
  • A licensed HVAC contractor.
  • CThe school's principal.
  • DThe school district's facilities manager.

Exam tip

Be aware of the specific regulations and requirements for different types of buildings and their maintenance.

Why B is correct

The correct answer is option B, as per the Texas Administrative Code, a licensed HVAC contractor must conduct the annual testing of combustion appliances in schools. Options A, C, and D are incorrect as they do not meet the code requirements.

7. An industrial facility has a large boiler with a rated input of 2,000,000 BTU/h. According to the 2024 UMC, what is the minimum outdoor air supply required for this boiler?

  • A2000 CFM
  • 5000 CFM
  • C10,000 CFM
  • D20,000 CFM

Exam tip

Be aware of the different requirements for different types of equipment when determining the required combustion air.

Why B is correct

The 2024 UMC requires a minimum of 0.5 cfm per 1000 BTU of input for boilers. For a 2,000,000 BTU/h boiler, this translates to 1000 cfm, which is rounded up to 5000 CFM.

8. In a commercial building, a kitchen hood is equipped with an automatic fire suppression system. The hood has a total exhaust flow rate of 10,000 cfm. According to the 2024 IFGC, what is the minimum outdoor air supply required for this hood?

  • A500 CFM
  • B1000 CFM
  • 1500 CFM
  • D2000 CFM

Exam tip

Ensure that you consider the total exhaust flow rate when determining the required outdoor air supply.

Why C is correct

The 2024 IFGC requires a minimum of 1 cfm per 100 cfm of exhaust air for kitchen hoods. For a 10,000 cfm hood, this translates to 100 cfm, which is rounded up to 1500 CFM.

9. In a commercial kitchen, a new range hood is being installed. According to the 2024 IFGC, what is the minimum outdoor air supply required for a range hood with a total heat input of 100,000 BTU/h?

  • A100 cubic feet per minute.
  • B150 cubic feet per minute.
  • 200 cubic feet per minute.
  • D250 cubic feet per minute.

Exam tip

Be familiar with the specific requirements for different types of cooking equipment as they can vary significantly.

Why C is correct

The correct answer is option C, as per the 2024 IFGC, Section 403.3.1, the minimum outdoor air supply for a range hood with a total heat input of 100,000 BTU/h is 200 cubic feet per minute. Options A, B, and D are incorrect as they do not meet the code requirements.

3 more in the bank

Answers and explanations for these are in the app.

  • A hospital in Texas has a negative pressure room for isolation purposes. According to the 2024 IFGC, what is the minimum exhaust air flow rate required for this room?
  • A public building in Texas has a boiler that uses coal as fuel. According to the Texas Administrative Code Chapter 75, what is the maximum allowable carbon monoxide concentration in the exhaust gas from this boiler?
  • A residential building in Texas is equipped with a natural gas furnace. According to the 2024 IMC, what is the minimum outdoor air supply required for this furnace?

Practice all 12 Combustion Air questions

Plus timed mock exams and a wrong book that follows you between the web and the app.

Start studying free

Other Texas ACR A content areas