Phase 1 central heating mock test

What heating system uses a difference in the density of water to circulate heat to a hot water cylinder?

• Y Plan

• Gravity fed

• S Plan +

• Hypocaust

The conservation of fuel and energy is covered by which approved document?

• P

• M

• H

• L

What is the main purpose of a central heating system?

• To heat up the core of the building

• To provide thermal comfort

• To supply heating to a single room

• To provide heat to a number of properties

What is the highest point of a vented heating system?

• Expansion vessel

• F&E cistern

• Cold feed isolation valve

• Automatic air vent

What is the primary function of the open vent on a heating system?

• To allow the system to pressurise

• To allow the system to operate at atmospheric pressure

• To provided sufficient oxygen to the heating system

• To provide a means of ventilation when filling the system

What type of heating system incorporates a 3 port valve that gives priority to the hot water system?

• S plan

• S plan +

• Y plan

• W plan

What 3 components are required when converting an open vented system with a sealed system?

• Auto air vent, low loss header & filling loop

• Filling loop, expansion vessel & pressure gauge

• Pressure relief valve, filling loop & expansion vessel

• Expansion vessel, auto air vent & pressure gauge

What is the name of the component pictured?

• Mixer bar

• Low loss header

• Manifold

• Filling loop

What type of heating system charges using low cost off peak tariffs?

• District

• Electric storage

• Y plan

• Warm air

What type of heating system can be split into zones that serve a cluster of houses and buildings?

• District

• Underfloor

• Microbore

• Thermosyphon