Progress check hot water

What is the minimum recommended distribution temperature of hot water supplied by a storage cylinder?

• 48°C

• 55°C

• 60°C

• 65°C

Which Building Regulation relates to the hot water delivery systems in dwellings?

• Part F

• Part G

• Part P

• Part L

Which one of the following is classed as a localised hot water system?

• Under-sink single point heater

• Thermal store

• Combination boiler

• Open vented

The safety devices within an unvented hot water cylinder are designed to prevent the water from exceeding which of the following temperatures?

• 60°C

• 65°C

• 95°C

• 100°C

Where should a secondary return be connected within a hot water storage cylinder?

• A quarter of the way down

• Halfway down

• Two-thirds of the way from the bottom

• A quarter of the way up

Identify the components in the unvented hot water system below.

• 1: Strainer; 2: Isolation valve; 3: Expansion relief valve; 4: Check valve

• 1: Isolation valve; 2: Strainer; 3: Check valve; 4: Expansion relief valve

• 1: Pressure reducing valve; 2: Isolation valve; 3: Check valve; 4: Strainer

• 1: Isolation valve; 2: Strainer; 3: Pressure reducing valve; 4: Check valve

What temperature should the temperature relief valve fitted to an unvented hot water storage vessel be set to discharge at?

• 60°C

• 72°C

• 90°C

• 95°C

Which of the following types of thermostatic mixing valve (TMV) should be installed within NHS and healthcare properties?

• TMV1

• TMV2

• TMV3

• TMV4

When considering discharge pipework from an unvented storage cylinder, what is the minimum size for D2 pipework if the D1 pipework is connected to a G1/2 valve outlet?

• 15 mm

• 22 mm

• 28 mm

• 35 mm

An unvented cylinder can only be installed by whom?

• The customer

• IPHE registered plumber

• Any person who follows the manufacturer's instructions

• A competent person