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Understanding Heating Systems and Safety

Authored by Michael Strangeway

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Professional Development

Used 1+ times

Understanding Heating Systems and Safety
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is a characteristic of a sealed (pressurised) central heating system compared to an open-vented system?

It requires a feed and expansion tank in the loft.

It operates at a higher pressure and uses an expansion vessel.

It is only suitable for small properties.

It cannot be used with combi boilers.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary function of a diverter valve in a combination boiler system?

To increase water pressure

To direct hot water either to the central heating or to the taps

To remove air from the system

To filter impurities from the water

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which method is commonly used to ensure continuous hot water circulation in a secondary return system?

Gravity circulation

Pumped circulation

Manual filling

Natural convection only

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main purpose of a system flush during heating system maintenance?

To increase the system pressure

To remove sludge and debris from pipework and radiators

To add more inhibitor

To check for leaks

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which British Standard covers the safety requirements for the installation of gas-fired hot water boilers?

BS 7671

BS 5440

BS 6891

BS 6798

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the recommended minimum temperature for storing hot water in a cylinder to prevent Legionella bacteria growth?

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is a sign that a heating system may require balancing?

All radiators heat up evenly

Some radiators remain cold while others are hot

The boiler cycles on and off rapidly

The system pressure is too high

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