A Relay Is a Device That

question 11

Multiple Choice

A relay is a device that .

• A)has a coil to actuate some contacts that control other circuits
• B)isolates the actuating signal from the control signal
• C)uses an electromagnet to open and close contacts
• D)all of these

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Definitions:

Grave Circle A

An archaeological site in Mycenae, Greece, containing a royal cemetery from the 16th century BCE, notable for its shaft graves and rich grave goods.

Mycenaean Kingship

The political system and leadership structure of Mycenaean Greece, characterized by powerful monarchs ruling over fortified palace centers in the Late Bronze Age.

Corbeled Arch

An arch formed by the piling of stone blocks in horizontal courses, cantilevered inward until the blocks meet at a keystone.

Tiryns

An ancient city in Greece known for its archaeological site, particularly its palace and cyclopean walls from the Mycenaean period.