Short cycling of the potable water pump is...

Question 1 / 270705eccef9cbacbc34ba4d45716

Question 1 of 270705eccef9cbacbc34ba4d45716

Short cycling of the potable water pump is avoided by the proper use of a __________.

Question 1 of 27070

Short cycling of the potable water pump is avoided by the proper use of a __________.

🔍 Key Concepts

• Short cycling of pumps in potable water systems • Function of a hydro-pneumatic tank (air + water cushion) • Relationship between air charge pressure, system pressure, and tank water level

💭 Think About

• Which combination of air pressure and water level will create a springy ‘cushion’ so the pump does not start every time a faucet is briefly opened? • If the tank is completely full of air or completely full of water, what happens to its ability to store pressure and volume changes? • How should the air pressure inside the tank compare to the normal system operating pressure so that the pump cycles on and off at reasonable intervals?

✅ Before You Answer

• Make sure the tank contains both air and water, not only one or the other • Verify that the air charge pressure is logically related to the system operating pressure (not far above it, and not far below it) • Check which choice describes a condition that allows the tank to accept and release water volume without the pump starting immediately for small demands

Question 1 of 27070

Short cycling of the potable water pump is avoided by the proper use of a __________.

hydro-pneumatic tank completely filled with compressed air at system operating pressure

hydro-pneumatic tank filled with water

charge of air, at 20 psi (137.9 kPa) above system pressure with the hydro-pneumatic tank one quarter full of water

charge of air, at system pressure, when the hydro-pneumatic tank is half full of water

Question 1 / 270705eccef9cbacbc34ba4d45716

Question 1 of 270705eccef9cbacbc34ba4d45716

Short cycling of the potable water pump is avoided by the proper use of a __________.

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Question 1 of 27070

Short cycling of the potable water pump is avoided by the proper use of a __________.