HKIA Exam Paper 4 Quiz 24

Gathering ground, means any surface of land in or by which rain or other water is collected and from which water is, or is intended to be, drawn for the purposes of a supply. (Waterworks Ordinance – Part 1, 2 Partition).

Dead band means the range of values within which an input variable can be varied without initiating any noticeable change in the output variable. (Code of practice for energy efficiency of building services installation 2018 – 2 Interpretations and abbreviations).

Premises, means any building or structure or any part thereof and any place in which there is a fire service, inside service or any part of the waterworks. (Waterworks Ordinance – Part 1, 2 Partition).

Specified plumbing works means the construction, installation, maintenance, alteration, repair or removal of a fire service or inside service. (Waterworks Ordinance – Part III Fire Services and Inside Services, 13A).

Circuit feeder means a circuit connected directly from the main LV switchboard or from the isolator just downstream of the main fuse of the electricity supplier to the major current-using equipment. (Code of practice for energy efficiency of building services installation – 2 Interpretations and abbreviations).

Circuit main means a circuit connected from a distribution transformer to the main LV switchboard downstream of it. (Code of practice for energy efficiency of building services installation 2018 – 2 Interpretations and abbreviations).

Commencement date, means the date on which the amending Ordinance comes into operation. (Waterworks Ordinance – Part VI Section 40).

Air-conditioning means the process of cooling, heating, dehumidification, humidification, air distribution or air purification. (Code of practice for energy efficiency of building services installation 2018 – 2 Interpretations and abbreviations).

Lighting power density (LPD) (unit: W/m2) means the electrical power consumed by fixed lighting installations per unit floor area of an illuminated space. (Code of practice for building energy audit 2012 – 2 Interpretations).

Luminaire means a lighting device, which distributes light from a single lamp or a group of lamps and should include control gears if applicable, and all necessary components for fixing and mechanical protection of lamps. (Code of practice for building energy audit 2012 – 2 Interpretations).

Bed passenger lift means a lift used for transportation of passenger and bed including stretcher. (Code of practice for energy efficiency of building services installation 2018 – 2 Interpretations and abbreviations).

Building services installation, an air-conditioning installation, an electrical installation, lift and escalator installation and a lighting installation. (Code of practice for energy efficiency of building services installation 2018 – 2 Interpretations and abbreviations).

Constant air volume (CAV) air distribution system means a system that controls the dry-bulb temperature within a space by varying the temperature of supply air that is maintained at constant volume flow to the space. (Code of practice for energy efficiency of building services installation 2018 – 2 Interpretations and abbreviations).

Control valve in an air-conditioning installation means a valve that controls the flow of chilled or heated water supply to AHU or heat exchanger in response to the cooling or heating load. (Code of practice for energy efficiency of building services installation 2018 – 2 Interpretations and abbreviations).

Space, in the context of lighting installation means a region in a building that is illuminated by artificial lighting installation and is bounded by a physical floor, a physical ceiling and physical walls. (Code of practice for building energy audit 2012 – 2 Interpretations).

Energy utilization index (EUI), in relation to the total energy consumption of the central building services installations in a building, means dividing total energy consumption for a specific period by the total internal floor area of the building. (Code of practice for building energy audit 2012 – 2 Interpretations).

Energy management opportunities (EMO) means the ways to achieve energy efficiency and conservation. (Code of practice for building energy audit 2012 – 2 Interpretations).

Area-weighted Average Wind Velocity (AAWV) is calculated by integrating the velocity magnitudes of the flow cells across a calculation plane and dividing by the total calculation plane area. (Guidelines on Design and Construction Requirements for Energy Efficiency of Residential Buildings 2014 – 1.4 Terminology and definitions).

Zone models describe a fluid flow within a discrete zone or room; they split the zone in question in distinct control volumes where calculations are performed. Zone models are not considered as accurate as field models. (Guidelines on Design and Construction Requirements for Energy Efficiency of Residential Buildings 2014 – 1.4 Terminology and definitions).

Field models are based on the sub-division of the computational domain into a very large number of control volumes; they are able to give detailed information at any point of the domain. (Guidelines on Design and Construction Requirements for Energy Efficiency of Residential Buildings 2014 – 1.4 Terminology and definitions).

Opaque wall or roof means that solid part of the wall or roof which is not part of the fenestration. (Guidelines on Design and Construction Requirements for Energy Efficiency of Residential Buildings 2014 – 1.4 Terminology and definitions).

Fenestration means any glazed aperture in the building envelope. (Guidelines on Design and Construction Requirements for Energy Efficiency of Residential Buildings 2014 – 1.4 Terminology and definitions).

Natural ventilation for thermal comfort facilitates the movement of fresh air through an interior space between window openings or the alike. NVTC design aims to achieve thermal comfort without reliance on active building systems. (Guidelines on Design and Construction Requirements for Energy Efficiency of Residential Buildings 2014 – 1.4 Terminology and definitions).

Residential Thermal Transfer Value means, as regards a residential building, the amount, expressed in watts per square meter (W/m2), of heat transferred through that building envelope and calculated having regard to factors such as the area of the building envelope. (Guidelines on Design and Construction Requirements for Energy Efficiency of Residential Buildings 2014 – 1.4 Terminology and definitions).

Visible Light Transmittance means the percentage of visible radiation of light that is transmitted through a glazing panel. (Guidelines on Design and Construction Requirements for Energy Efficiency of Residential Buildings 2014 – 1.4 Terminology and definitions).

Building fabric refers to a component of any building, consisting of its roofs, walls, windows, doors, but excluding any mechanical system, for controlling the flow of energy between the interior and exterior of the building. (Guidelines on Design and Construction Requirements for Energy Efficiency of Residential Buildings 2014 – 1.4 Terminology and definitions).

O&M means Operation & maintenance. (Code of practice for lift works and escalator works 2018 – 2.1 Abbreviations, Definitions, and References).

EMSD means Electrical and Mechanical Services Department. (Code of practice for lift works and escalator works 2018 – 2.1 Abbreviations, Definitions, and References).

Audio/visual advisory system means, equipment which is supplementary to exit signs and fire alarm warning devices which, when operated in the event of a fire, provides audio/visual indication of safe direction of egress from the area. (Code of practice for minimum fire service installation and equipment 2012 – 2.2 Definitions).

Drencher system, in which provides a curtain of water for protection against internal and/or external ―exposure‖ to fire, and/or the protection of large openings. . (Code of practice for minimum fire service installation and equipment 2012 – 2.2 Definitions).