6 6.3 chosse correct diagram a b c or d Chapter 6-Mechanical Input Control Devic

Question

6 6.3
chosse correct diagram
a b c or d

Chapter 6-Mechanical Input Control Devices 93 Complete the line diagram based on the circuit information. Use standard lettering, numbering, and coding information rksheets 3. Design a circuit with three pressure switches to maintain the proper amount of air pressure in an inflatable building. One pressure switch controls an air pump to keep the building inflated. A second switch detects overpressure that could rupture the building and warns of overpressure by sounding a bell. The third switch detects underpressure that could cause the building to collapse and warns of underpressure by sounding a horn. PUMP CONTROL BELL bering, and PS MOTOR PS2 CONTROL curs HORN PS3 CONTROL

Explanation / Answer

Answer: option D

Since only one pump which keep building inflated need to be on while remaining two will be off.

Remaining two pumps will be on only when pressure is either low or high.

But during normal pressure only one switch need to be on..

Therefore answer is D.

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