Which of the listed types of lighting...

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Question 1 of 2066636eed28f7522a1c51d749

Which of the listed types of lighting fixtures does the diagram shown in figure "A" of the illustration represent? Illustration EL-0081

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Question 1 of 20

66636eed28f7522a1c51d749

Which of the listed types of lighting fixtures does the diagram shown in figure "A" of the illustration represent? Illustration EL-0081

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🔍 Key Concepts

• Notice the long glass tube with an inner phosphor coating and bi‑pin caps at each end in figure A. • Identify what type of discharge lamp uses argon gas and mercury vapor with mercury droplets and operates at relatively low pressure inside the tube. • Think about how high‑pressure lamps (mercury or sodium) are usually constructed compared to standard tubular lamps used in office lighting.

💭 Think About

• Which lamp type from the choices is commonly built as a tubular lamp with bi‑pin ends and a phosphor coating on the inside of the glass? • Do high‑pressure sodium or high‑pressure mercury lamps normally look like this, or do they more often have a compact arc tube inside a larger outer bulb? • Which option best matches a lamp where the visible light mostly comes from phosphors excited by mercury vapor, rather than from a high‑intensity arc alone?

✅ Before You Answer

• Confirm which option specifically mentions fluorescent operation and mercury together. • Eliminate any options that typically do not use a long, straight glass tube with bi‑pin caps. • Be sure you distinguish between low‑pressure and high‑pressure types: look at how gentle, tubular constructions differ from rugged, compact high‑pressure arc tubes.

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Question 1 of 2066636eed28f7522a1c51d749

Which of the listed types of lighting fixtures does the diagram shown in figure "A" of the illustration represent? Illustration EL-0081

Back

Question 1 of 20

66636eed28f7522a1c51d749

Which of the listed types of lighting fixtures does the diagram shown in figure "A" of the illustration represent? Illustration EL-0081

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

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