Which of the following is a factor in choosing a hot water system related to water supply?

The pressure and flow rate of the incoming mains cold water supply

The color of the incoming mains cold water supply

The taste of the incoming mains cold water supply

The temperature of the incoming mains cold water supply on a summer day

What are the two main types of hot water systems mentioned in the document?

Centralized system and Localized or single-point system

Centralized system and Decentralized system

Internal system and External system

Automated system and Manual system

What are the two main types of centralised storage hot water systems?

Open-vented systems and unvented systems

Open-vented systems and closed-vented systems

Unvented systems and vented systems

Pressurized systems and non-pressurized systems

What is the key point about parasitic circulation?

It is a major cause of heat loss from hot water storage cylinders.

It occurs in closed-pipe systems and is beneficial for heat retention.

It enhances the efficiency of hot water systems.

It only occurs in unvented hot water systems.

Why should the open-vent pipe not be taken directly from the top of the hot water storage vessel?

It may result in parasitic (one-pipe) circulation.

It can cause overheating of the system.

It is against water safety regulations.

According to BS 6700, what is the purpose of the cold feed pipe in a hot water storage system?

To allow for expansion of water when heated

To supply cold water to the taps

To prevent airlocks within the system

Where should the cistern be placed to ensure good supply pressure?

At the lowest point of the cold feed pipe

What is the recommended minimum pipe length for the primary flow and return pipes in a direct cylinder system?

28mm unless otherwise stated in the manufacturer's instructions

Why is it risky to connect direct cylinders to solid fuel back boilers without effective temperature control?

It can lead to a high risk of scalding

It can cause the system to overheat

It can result in inefficient heating

It can cause the boiler to underperform

What is the purpose of placing an immersion heater halfway down the cylinder for daytime top-up?

To allow a time controller for daytime use with cheaper-rate electricity

To heat the entire contents of the cylinder

To provide a quick heating method

To minimize the risk of freezing

What is a disadvantage of using a boiler in a direct system of hot water when the wrong type of boiler is used?

Risk of rusty water being drawn off at the taps

Quick heat-up time of immersion-heater types

Why might there be a high risk of scale build-up in a direct system of hot water with a boiler?

If the water temperature exceeds 65°C

If the water temperature is below 65°C

If the system is cheap to install

If the heat-up time of water is quick

What is the suitable property size for a direct system hot water heater?

Suitable for small apartments only

Suitable for commercial properties

Suitable for outdoor installations only

What is a disadvantage of using Economy 7 electricity with a direct system hot water heater?

The price of the electricity can be high

It is more expensive than other types

What is the primary advantage of the installation cost for a direct system hot water heater?

It is the least expensive of all storage systems

It is the most expensive option

It requires additional insulation

What is a heat exchanger in the context of indirect hot water storage systems?

A device that allows heat to be transferred from one water system to another

A device that cools down the water

A device that purifies the water

A device that increases water pressure

Which type of indirect hot water storage system is most common in UK domestic properties?

Double-feed indirect hot water storage cylinder

Single-feed self-venting indirect hot water storage cylinder

What is the general practice regarding the installation of indirect cylinders in new installations?

To install them in preference to direct types, even if the indirect flow and return are capped off

To install them without cisterns

To install them with larger cisterns only

To avoid installing them altogether

What is the purpose of the two cisterns used in a double-feed indirect system?

One for cold water storage and one for expansion of the heating system

One for cold water storage and one for hot water storage

Both for expansion of the heating system

What is the primary benefit of a double-feed indirect hot water storage cylinder in central heating systems?

It prevents dirty or rusty water being drawn off at the taps.

It allows for direct heating of water by the boiler.

It requires frequent changes of pipework.

It increases the risk of water evaporation.

How is secondary water heated in a double-feed indirect system?

By conduction from the water storage cylinder.

According to BS 1566, what must hot water storage cylinders conform to?

The minimum heating surface area of the heat exchanger.

The minimum size of the cylinder.

The maximum pressure allowed in the system.

The maximum temperature of water storage.

What is a requirement for new double-feed indirect systems as per Document L1a of the Building Regulations?

They must incorporate pumped primary circulation with controls to prevent energy wastage.

They must use gravity primary flow and return.

They must have a sealed heating system.

They must use larger pipe sizes to improve efficiency.

What is the purpose of the second coil in an indirect cylinder for renewable energy hot water supply?

It is dedicated to the renewable energy heat source.

It is used with a conventional fuel source such as gas or oil.

It accounts for 70 percent of the cylinder's hot water volume.

It provides additional structural support to the cylinder.

Which type of valve is used at the point where the 22mm or 28mm cold feed to the secondary hot water system joins the 22mm or 28mm full-way gate valve or lever type spherical ball valve?

Spherical ball type service valve

How is the height of the vent from the secondary hot water system determined?

1m + 40mm per metre of system height

300mm above the highest radiator

450mm above the highest radiator

Chapter 007 hot water blue book Quiz

11th Grade

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100 Qs

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Chapter 007 hot water blue book Quiz

Quiz

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Science

•

11th Grade

•

Practice Problem

•

Hard

Iain Henderson

Used 15+ times

FREE Resource

100 questions

Show all answers

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary focus of Chapter 007 in the learning material?

The history of hot water systems

The installation and maintenance of domestic hot water systems

The economic impact of hot water systems

The environmental considerations of hot water systems

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is NOT a topic you will cover in Chapter 007?

Selecting a hot water system

Types of hot water systems

Faults with open-vented water systems

The political implications of hot water system usage

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What type of hot water system is described by B3 in the chapter outline?

Open-vented direct hot water storage systems

Centralised storage hot water systems

Open-vented indirect hot water storage systems

Combination centralised open-vented hot water storage systems

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

According to the chapter outline, which section deals with the protection against backflow and back siphonage?

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which section in the chapter outline addresses the installation of hot water pipework to BS 6700?

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

On what factors does the choice of a hot water system depend?

The color of the property and the number of windows

The size of the property and the distance to the outlets

The brand of the hot water system

The weather conditions and the property's insulation

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is one of the factors that should be considered when selecting a hot water system in terms of cost?

Decoration costs

Installation and maintenance costs

Entertainment costs

Gardening costs

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Chapter 007 hot water blue book Quiz

100 questions

What is the primary focus of Chapter 007 in the learning material?

Which of the following is NOT a topic you will cover in Chapter 007?

What type of hot water system is described by B3 in the chapter outline?

According to the chapter outline, which section deals with the protection against backflow and back siphonage?

Which section in the chapter outline addresses the installation of hot water pipework to BS 6700?

On what factors does the choice of a hot water system depend?

What is one of the factors that should be considered when selecting a hot water system in terms of cost?

Which of the following is a factor in choosing a hot water system related to water supply?

What are the two main types of hot water systems mentioned in the document?

Hot water systems can be divided into how many distinct types?

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