Which electrical schematic symbol represents...

Question 1 of 270705eccefa4bacbc34ba4d48616

Which electrical schematic symbol represents the device shown in figure "D"? See illustration EL-0059.

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Question 1 of 27070

Which electrical schematic symbol represents the device shown in figure "D"? See illustration EL-0059.

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🔍 Key Concepts

• Figure D shows a sensing bulb with a capillary tube going to a switch housing – this is a temperature-actuated switch/thermostat. • In the symbol list, look for a switch contact that is operated by a temperature-sensing element, usually shown by a special shape on or near the contact. • Distinguish between symbols for pressure (often circles), flow (paddles/lines), and temperature (often angular or bulb‑style marks).

💭 Think About

• First, decide what physical quantity the device in figure D is sensing and controlling. Is it pressure, flow, level, or temperature? • Then, scan the symbols and separate out which ones are plain mechanical limit switches, which are pressure-operated, and which are thermostatic or temperature-operated. • Compare the unique graphic attached to each switch symbol (triangle, circle, bulb/loop, etc.). Which one best matches a temperature bulb and capillary like you see in figure D?

✅ Before You Answer

• Verify that the chosen symbol clearly shows a switch contact (two terminals with a movable arm). • Confirm that the added mark next to the contact corresponds to temperature rather than pressure or flow (do not pick symbols with circles that usually indicate pressure). • Make sure you are not picking a simple hand‑operated limit switch; the device in figure D must show some form of remote sensing element in its symbol.