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Water Heater Function and Pressure Relief Valve

5 Questions

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Water Heater Function and Pressure Relief Valve

Created by

@TollFreePreRaphaelites

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Questions and Answers

What role does the thermostat play in the water heater system?

It controls the pressure relief valve.

It measures the flow rate of water.

It determines the heat distribution in the lavatory.

It regulates the temperature of the heating elements. (correct)

What is the pressure threshold at which the pressure relief valve opens?

120 psi

100 psi

160 psi

140 psi (correct)

Under what condition does the pressure relief valve close?

When the water supply is disrupted.

When the heater is turned off.

When the pressure drops below 130 psi. (correct)

When the temperature reaches maximum.

Where is the water heater installed in relation to the mixer valve?

<p>Before the mixer valve in the water supply line.</p> Signup and view all the answers

What occurs when the shut-off valve is closed in the water heater system?

<p>The pressure in the heater can increase beyond 140 psi.</p> Signup and view all the answers

Study Notes

Water Heater Function

Provides hot water for washbasins in lavatories.
Installed in the water supply line leading to the mixer valve in each lavatory.
Contains a tank with electrical heating elements controlled by a thermostat.

Pressure Relief Valve

Opens automatically when pressure inside the heater exceeds 140 psi.
This can occur when the shut-off valve is closed, and the water is being heated.
Closes automatically when the pressure drops below 130 psi.

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Description

This quiz covers the fundamental functions of water heaters, specifically regarding their operation in lavatories. It also explores the important role of pressure relief valves in maintaining safe conditions within water heating systems.