In a Database, a Group of Similar Rows Is Called

question 10

Multiple Choice

In a database, a group of similar rows is called a ________.

• A) table
• B) record
• C) field
• D) matrix

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Definitions:

On-Delay Timer

An electromechanical relay with contacts that change state a predetermined time period after the coil is energized; the contacts return to their shelf state immediately on de-energization of the coil; also, a programmable logic controller instruction that emulates the operation of the electromechanical on-delay timer.

Ladder Rung

A horizontal section of a ladder logic diagram, representing a specific logic operation in PLC programming.

Off-Delay Timer

An electromechanical relay with contacts that change state a predetermined time period after power is removed from its coil; on re-energization of the coil, the contacts return to their shelf state immediately; also, a programmable logic controller instruction that emulates the operation of the electromechanical off-delay relay.

Ladder Rung

A single line of logic in a ladder diagram that equates to a control circuit, usually comprised of inputs and outputs represented by symbols.