Regulator'17B' shown in the illustration, is...

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Question 1 of 205eccefa2bacbc34ba4d4775a

Regulator'17B' shown in the illustration, is set for a constant output of 1.2 bar and the input signal to "1" is currently 0.42 bar. If the output from '17A' can not exceed 0.85 bar, then the current output from "2" should be __________. See illustration MO-0114.

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🔍 Key Concepts

• Understand how the low-end speed set point regulator (17A) and high-end speed set point regulator (17B) interact with the critical speed jump control valve (22A) in this diagram. • Think about whether regulator 17A can increase the pressure above the input signal, or if it can only limit it to some maximum value (0.85 bar). • Consider whether the output at point 2 can ever be higher than the highest pressure feeding the valve group, based on this pneumatic control arrangement.

💭 Think About

• Trace the pressure path: starting from the input signal at point 1 (0.42 bar), follow where that pressure goes through 17A, 22A, and then to point 2. Which components are actually active at this relatively low input pressure? • Ask yourself: at the present operating condition, is the high-end regulator 17B (set for 1.2 bar) really controlling the circuit, or is the system still being limited by the low-end regulator and the incoming signal? • Compare each answer choice with the physical limits given: input 0.42 bar, 17A cannot exceed 0.85 bar, 17B set to 1.2 bar. Which options are immediately impossible given these constraints?

✅ Before You Answer

• Verify that point 2 cannot exceed both 0.85 bar and 1.2 bar under the current conditions and must also relate logically to the 0.42 bar input. • Confirm whether the high-end regulator’s set value (1.2 bar) is reached or not at an input of only 0.42 bar. • Check that the selected answer is physically consistent: no output higher than all available supply/regulated pressures and no output lower than what the circuit arrangement can actually pass through from point 1.

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