In electrical circuit schematics, a normally...

Question 1 / 205eccefa3bacbc34ba4d47e8b

Question 1 of 205eccefa3bacbc34ba4d47e8b

In electrical circuit schematics, a normally closed pressure switch is represented by which of the symbols shown in the illustration? See illustration EL-0059.

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Question 1 of 20

5eccefa3bacbc34ba4d47e8b

In electrical circuit schematics, a normally closed pressure switch is represented by which of the symbols shown in the illustration? See illustration EL-0059.

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🔍 Key Concepts

• Difference between normally closed (NC) and normally open (NO) contacts in schematic symbols • How a pressure-operated device is shown in symbols (diaphragm or bellows shape attached to the contact) • Distinguishing a basic switch symbol from one that is specifically pressure actuated

💭 Think About

• First, among the numbered symbols, which ones clearly show closed contacts when no force is applied? Eliminate any that show an air gap between contacts at rest. • Next, look only at those NC symbols and decide which one has the pressure-actuating element (often drawn like a diaphragm or bellows) rather than temperature, flow, or a plain mechanical operator. • Compare the special shapes under or beside the contacts: which shape most logically represents pressure on a diaphragm rather than a float, paddle, or thermal bulb?

✅ Before You Answer

• Verify that the symbol you pick shows the contacts touching in the normal (unactuated) position. • Confirm that the operator attached to the contacts is the one used for pressure, not temperature or flow—look for the diaphragm/bellows style shape. • Make sure you are not choosing a generic limit switch or pushbutton symbol; the question specifically requires a pressure switch, not just any NC switch.

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Question 1 of 20

In electrical circuit schematics, a normally closed pressure switch is represented by which of the symbols shown in the illustration? See illustration EL-0059.

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Question 1 / 205eccefa3bacbc34ba4d47e8b

Question 1 of 205eccefa3bacbc34ba4d47e8b

In electrical circuit schematics, a normally closed pressure switch is represented by which of the symbols shown in the illustration? See illustration EL-0059.

Back

Question 1 of 20

5eccefa3bacbc34ba4d47e8b

In electrical circuit schematics, a normally closed pressure switch is represented by which of the symbols shown in the illustration? See illustration EL-0059.

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed