Which statement about the LPAC is false?

Which statement about the LPAC is false?

• A. It is driven by a 60 hp electric motor.
• B. It operates in automatic and manual modes.
• C. It unloads at 125/120/115 psi.
• D. It is driven by a steam turbine.

Answer: (D)

The key point is how this LPAC is powered. This unit is driven by a 60 hp electric motor, not a steam turbine. That’s why the option stating it’s driven by a steam turbine is not correct. The LPAC is designed to run in automatic or manual modes, and it unloads to hold system pressure in a controlled band around 125/120/115 psi, which helps regulate airflow and conserve energy. Using an electric drive simplifies control and eliminates the need for steam piping, which explains why a steam turbine drive would not apply here.

The key point is how this LPAC is powered. This unit is driven by a 60 hp electric motor, not a steam turbine. That’s why the option stating it’s driven by a steam turbine is not correct. The LPAC is designed to run in automatic or manual modes, and it unloads to hold system pressure in a controlled band around 125/120/115 psi, which helps regulate airflow and conserve energy. Using an electric drive simplifies control and eliminates the need for steam piping, which explains why a steam turbine drive would not apply here.