Which term describes the speed referenced as full speed for electric systems and running speed for diesel and steam systems?

Which term describes the speed referenced as full speed for electric systems and running speed for diesel and steam systems?

• A. Full speed (running speed for diesel and steam systems)
• B. Idle speed
• C. Half speed
• D. Maximum torque

Answer: (A)

Full speed is the speed used to describe the machine when it’s operating at its rated or normal condition. For electric systems, that means the motor or generator runs at its rated speed under full load. For diesel and steam systems, the running speed is the RPM at which the unit operates when delivering its rated power. Other options don’t fit because idle speed implies no load, half speed isn’t a standard designation, and maximum torque relates to torque rather than the operating speed.

Full speed is the speed used to describe the machine when it’s operating at its rated or normal condition. For electric systems, that means the motor or generator runs at its rated speed under full load. For diesel and steam systems, the running speed is the RPM at which the unit operates when delivering its rated power. Other options don’t fit because idle speed implies no load, half speed isn’t a standard designation, and maximum torque relates to torque rather than the operating speed.