Suppose the pilot pressure range is from 3...

Question 1 / 2066636eee28f7522a1c51f441

Question 1 of 2066636eee28f7522a1c51f441

Suppose the pilot pressure range is from 3 to 15 psig for the illustrated pneumatically operated diaphragm actuated control valve. Assuming the control valve is trimmed for a linear response and the travel position indicator is calibrated in percentage, what would be the approximate valve position with a 9 psig pilot pressure? Illustration GS-0051

Back

Question 1 of 20

66636eee28f7522a1c51f441

No comments yet

Be the first to share your thoughts!

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

🔍 Key Concepts

• Pilot pressure span from 3 to 15 psig (not from 0 psig) • How a linear valve trim means equal pressure changes give equal travel changes • Relating percentage of pressure span used to percentage of valve travel when the indicator is calibrated in percent

💭 Think About

• First, calculate the total pilot pressure span between fully closed and fully open, based on the 3–15 psig range. How many psig is that? • Next, find how far 9 psig is above the starting point of 3 psig. What fraction of the total span does that represent? • If valve travel is linear with pilot pressure, what does that same fraction represent in terms of percent valve opening?

✅ Before You Answer

• Be sure you subtract from 3 psig, not from zero, when finding how far along the range 9 psig is • Confirm that a linear response means a straight-line relationship between pilot pressure and valve travel • Match the fraction of span you calculated to the closest percentage in the answer choices

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

Quick actions

— No credit card needed

Question 1 of 20

25% open

33% open

50% open

75% open

Loading interactive features...

Question 1 / 2066636eee28f7522a1c51f441

Question 1 of 2066636eee28f7522a1c51f441

Back

Question 1 of 20

66636eee28f7522a1c51f441

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