California Energy Efficiency HVAC
Compliance Exam Practice Questions
And Correct Answers (Verified Answers)
Plus Rationale 2026 Q&A| Instant
Download Pdf
1.
A California commercial building is undergoing HVAC retrocommissioning to
comply with Title 24 energy efficiency requirements. Which of the following
BEST describes the primary objective of retrocommissioning in this context?
A. Replacing all HVAC equipment with higher-capacity units
B. Ensuring systems operate according to original design intent and current
energy codes
C. Increasing refrigerant charge to improve cooling capacity
D. Eliminating all variable air volume systems
,The correct answer is B because retrocommissioning focuses on verifying
and restoring HVAC system performance to match design intent and
applicable energy efficiency standards such as California Title 24, rather
than replacing equipment or modifying system types unnecessarily.
2.
Under California Title 24 energy standards, which HVAC control strategy is
MOST effective for reducing fan energy consumption in large commercial
systems?
A. Constant air volume operation at full speed
B. Manual damper adjustment by occupants
C. Variable air volume (VAV) systems with demand-based control
D. Oversizing supply fans to reduce runtime cycles
The correct answer is C because VAV systems adjust airflow based on real-
time demand, significantly reducing fan energy use compared to constant
volume or oversized systems.
3.
A building compliance inspector is reviewing HVAC duct leakage testing
documentation. Which condition would MOST likely cause noncompliance
under California energy standards?
A. Duct leakage below the specified threshold
B. Fully sealed duct joints using mastic sealant
,C. Unsealed duct connections in conditioned space
D. Proper insulation of ductwork in unconditioned attics
The correct answer is C because unsealed duct connections increase energy
losses and violate California’s duct leakage requirements under Title 24.
4.
Which HVAC component MOST directly contributes to meeting California’s
mandatory economizer requirements in commercial cooling systems?
A. Refrigerant accumulator
B. Outdoor air damper and control system
C. Expansion valve
D. Heating coil bypass valve
The correct answer is B because economizers rely on modulating outdoor
air dampers and controls to use free cooling when outdoor conditions are
favorable.
5.
In California energy compliance, what is the primary purpose of Demand
Control Ventilation (DCV)?
A. Increase ventilation regardless of occupancy
B. Reduce ventilation during low occupancy to save energy
, C. Eliminate outdoor air intake entirely
D. Maintain constant CO₂ levels regardless of occupancy
The correct answer is B because DCV reduces outdoor air ventilation rates
when occupancy is low, thereby improving energy efficiency while
maintaining indoor air quality.
6.
Which HVAC system modification would MOST likely violate California Title
24 efficiency standards?
A. Installing high-efficiency motors
B. Adding programmable thermostats
C. Bypassing economizer controls permanently
D. Using variable speed drives on pumps
The correct answer is C because permanently bypassing economizer
controls prevents compliance with required energy-saving ventilation
strategies.
7.
A compliance officer is evaluating HVAC refrigerant systems. Which practice
BEST supports energy efficiency compliance?
A. Overcharging refrigerant to maximize cooling output
B. Maintaining correct refrigerant charge per manufacturer specifications
Compliance Exam Practice Questions
And Correct Answers (Verified Answers)
Plus Rationale 2026 Q&A| Instant
Download Pdf
1.
A California commercial building is undergoing HVAC retrocommissioning to
comply with Title 24 energy efficiency requirements. Which of the following
BEST describes the primary objective of retrocommissioning in this context?
A. Replacing all HVAC equipment with higher-capacity units
B. Ensuring systems operate according to original design intent and current
energy codes
C. Increasing refrigerant charge to improve cooling capacity
D. Eliminating all variable air volume systems
,The correct answer is B because retrocommissioning focuses on verifying
and restoring HVAC system performance to match design intent and
applicable energy efficiency standards such as California Title 24, rather
than replacing equipment or modifying system types unnecessarily.
2.
Under California Title 24 energy standards, which HVAC control strategy is
MOST effective for reducing fan energy consumption in large commercial
systems?
A. Constant air volume operation at full speed
B. Manual damper adjustment by occupants
C. Variable air volume (VAV) systems with demand-based control
D. Oversizing supply fans to reduce runtime cycles
The correct answer is C because VAV systems adjust airflow based on real-
time demand, significantly reducing fan energy use compared to constant
volume or oversized systems.
3.
A building compliance inspector is reviewing HVAC duct leakage testing
documentation. Which condition would MOST likely cause noncompliance
under California energy standards?
A. Duct leakage below the specified threshold
B. Fully sealed duct joints using mastic sealant
,C. Unsealed duct connections in conditioned space
D. Proper insulation of ductwork in unconditioned attics
The correct answer is C because unsealed duct connections increase energy
losses and violate California’s duct leakage requirements under Title 24.
4.
Which HVAC component MOST directly contributes to meeting California’s
mandatory economizer requirements in commercial cooling systems?
A. Refrigerant accumulator
B. Outdoor air damper and control system
C. Expansion valve
D. Heating coil bypass valve
The correct answer is B because economizers rely on modulating outdoor
air dampers and controls to use free cooling when outdoor conditions are
favorable.
5.
In California energy compliance, what is the primary purpose of Demand
Control Ventilation (DCV)?
A. Increase ventilation regardless of occupancy
B. Reduce ventilation during low occupancy to save energy
, C. Eliminate outdoor air intake entirely
D. Maintain constant CO₂ levels regardless of occupancy
The correct answer is B because DCV reduces outdoor air ventilation rates
when occupancy is low, thereby improving energy efficiency while
maintaining indoor air quality.
6.
Which HVAC system modification would MOST likely violate California Title
24 efficiency standards?
A. Installing high-efficiency motors
B. Adding programmable thermostats
C. Bypassing economizer controls permanently
D. Using variable speed drives on pumps
The correct answer is C because permanently bypassing economizer
controls prevents compliance with required energy-saving ventilation
strategies.
7.
A compliance officer is evaluating HVAC refrigerant systems. Which practice
BEST supports energy efficiency compliance?
A. Overcharging refrigerant to maximize cooling output
B. Maintaining correct refrigerant charge per manufacturer specifications
