Data That Describe the Data Contained in a Database Are

question 4

Multiple Choice

Data that describe the data contained in a database are called ________.

• A)open matrices
• B)primary data
• C)metadata
• D)closed matrices

---

Definitions:

Rated Speed

Rated speed is the speed at which an electric motor or machine is designed to operate under a specific load to achieve optimum performance.

VFD Technology

Variable Frequency Drive technology, enabling control of the speed and torque of electric motors by varying the input frequency and voltage.

Phase Motors

Electric motors designed to operate on a specific number of phases of alternating current, each providing a distinct power cycle.

VFDs

Variable Frequency Drives, electronic devices that control the speed of an electric motor by varying the frequency and voltage supplied to the motor.