In a domestic hot water cylinder, what material is the sacrificial anode generally made of?

A ferrous metal may corrode (rust) if not treated, this is because it contains:

The relative density of water is?

The boiling point for water at sea level is?

Water is at it's maximum density at what temperature?

Hard water is produced when rainwater falls onto which type of ground?

Calcium carbonate begins to leave hard water at what temperature?

When a substance is heated to a temperature that brings about a physical change, it is known as?

The only true way to soften water is?

(Head height x Gravity) is used to calculate what?

If three CWSC have the same capacity of water, the cistern with the smallest base area will offer:

What is the atmospheric pressure when at sea level?

STATEMENT: A solid material exerts the same pressure as a liquid.

Which of the following gases burns too hot to use in soldering?

Of these gases, which has a calorific value of 95MJ/m³?

Which of the following does NOT need any form of ventilation?

The amount of heat produced by a specific amount of fuel is known as?

If an appliance needs 2.4kW in a domestic property, what

is the fuse size?

In a domestic property, an appliance has a fuse size of

5 amp. What is the maximum power rating of the

appliance?

What would be the resistance of a domestic appliance if

the fuse size was 7 amp?

STATEMENT: The cathode in a battery eats the anode

How is DC electricity produced?

When installing guttering, which of the following should be taken into consideration?

What type of water do you have if the pH level of water was at 3?

The SI unit for measuring electrical power is:

Improper flushing of the system and not cleaning the pipes after soldering will result in:

What is the chemical symbol for steel?

STATEMENT: The higher your altitude, the higher the boiling point of water (°C).

STATEMENT: Adding antifreeze will not only lower the freezing point but increase the boiling point.