What term describes the electric engine or diesel motor that provides power to the fire pump?

• A. Driver
• B. Engine
• C. Prime mover
• D. Motor

Answer: (A)

Prime mover is the term for the power source that drives a fire pump, whether it's a diesel engine or an electric motor. This component supplies the mechanical energy to turn the pump shaft and develop water pressure, distinguishing the energy source from the pump itself and from the operator. While an engine refers specifically to a combustion unit and a motor to an electric drive, prime mover covers the power unit that drives the pump in all configurations.