9189PH2CHPPT3

9189PH2CHPPT3

12th Grade

41 Qs

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9189PH2CHPPT3

9189PH2CHPPT3

Assessment

Quiz

Other

12th Grade

Hard

Created by

William Heron

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41 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main difference between sealed systems and open vented systems in terms of water?

The color of the water

The temperature at which water boils

How the water is charged into the system and pressure maintenance

The amount of water used

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Identify the component labeled in the diagram that helps maintain pressure in a sealed heating system.

Wiring centre

Expansion vessel

Programmer/stop

Temporary filling loop with double check valve arrangement

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How are sealed heating systems filled with water?

Directly from the mains cold water supply via a permanent connection

Using a temporary filling loop from the mains cold water supply

Through an F&E cistern continuously

By manual filling with buckets or containers

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What replaces the open vent in a sealed heating system to manage the expansion of water?

A pressure relief valve

An expansion vessel and a pressure relief valve

A thermostat

A manual release valve

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of the pressure relief valve in a sealed heating system?

To increase the pressure within the system

To regulate the temperature of the water

To relieve excess pressure and discharge safely to a drain point outside the dwelling

To indicate the water level in the system

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is it vital to have a pressure relief valve in a sealed heating system?

Because the water may be in excess of 80°C

To prevent water from freezing in the system

To maintain a constant water supply

To control the pH level of the water

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does a pressure gauge in a sealed heating system help to indicate?

The temperature of the water

The quality of the water

A potential component malfunction

The amount of water used

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