With regards to process control, the...

Question 1 / 205eccefa5bacbc34ba4d487b4

Question 1 of 205eccefa5bacbc34ba4d487b4

With regards to process control, the operation of the device shown in the illustration can be characterized by the term __________. See illustration GS-0045.

Back

Question 1 of 20

5eccefa5bacbc34ba4d487b4

With regards to process control, the operation of the device shown in the illustration can be characterized by the term __________. See illustration GS-0045.

No comments yet

Be the first to share your thoughts!

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

🔍 Key Concepts

• Proportional control vs reset (integral) control in mechanical controllers • How a pilot-operated temperature or pressure controller behaves as the process variable moves away from setpoint • Visual clues in the illustration that indicate throttling (modulating) action versus simple on-off action

💭 Think About

• Look closely at the moving parts connected between the sensing element and the main valve plug. Do they allow the valve to move gradually to many positions, or just snap between fully open and fully closed? • Ask yourself whether there is any mechanism that would slowly "wind up" or continue to change the valve position over time to eliminate a steady offset between setpoint and actual value. • Consider how feedback from valve position or controlled pressure/temperature might be fed back into the bellows or springs. Does the design show a second feedback element that would provide a reset (integral) effect?

✅ Before You Answer

• Identify whether the main valve plug is continuously positionable (modulating) or simply open/closed. • Check if there is a single measuring element and spring (typical of proportional-only control) or an additional feedback bellows/chamber that would create reset action. • Make sure you can explain in your own words whether this device would hold a fixed offset from setpoint under steady load, or gradually drive that offset to zero over time. That distinction is key to choosing between proportional only and proportional plus reset.

👋 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

With regards to process control, the operation of the device shown in the illustration can be characterized by the term __________. See illustration GS-0045.

proportional control only

proportional plus reset control

reset control only

on-off control only

Loading interactive features...

Question 1 / 205eccefa5bacbc34ba4d487b4

Question 1 of 205eccefa5bacbc34ba4d487b4

With regards to process control, the operation of the device shown in the illustration can be characterized by the term __________. See illustration GS-0045.

Back

Question 1 of 20

5eccefa5bacbc34ba4d487b4

With regards to process control, the operation of the device shown in the illustration can be characterized by the term __________. See illustration GS-0045.

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