Question 1

A functional requirement of an internal finish is that it should be&#10;A) Resolute&#10;B) Resonant&#10;C) Reflective&#10;D) Resilient&#10;E) Redoubtable

Accepted Answer

A functional requirement of an internal finish is that it should be resilient. This means that it should be able to withstand wear and tear, impacts, and other stresses over time. A resilient finish will last longer and require less maintenance, making it a more practical and cost-effective choice for many applications.

Question 2

One advantage of applying a screed to the surface of a floor is&#10;A) It can resist high temperatures&#10;B) It can resist moisture movement&#10;C) It can accommodate services&#10;D) It can improve sound transmission&#10;E) It can replace the damp proof membrane

Accepted Answer

It can accommodate services

Question 3

A monolithic screed differs from a separate screed in that it&#10;A) Must be placed within 3 hours of the base being laid&#10;B) Must be placed after the base has hardened&#10;C) Must be placed on a dampened concrete surface&#10;D) Must be placed on a surface treated with a bonding agent&#10;E) Must be placed to a minimum thickness of 37mm

Accepted Answer

A monolithic screed is applied to the base concrete while it is still fresh, typically within 3 hours, to ensure a strong bond.

Question 4

One disadvantage of unbonded screeds is&#10;A) They can only incorporate lightweight aggregates&#10;B) They cannot incorporate lightweight aggregates&#10;C) They are thicker than bonded screeds&#10;D) They require a higher water content than bonded screeds&#10;E) They require a higher cement content than bonded screeds

Accepted Answer

Unbonded screeds are not directly adhered to the base but are laid on a layer of insulation or damp proof membrane, which often necessitates a thicker application compared to bonded screeds that are directly applied to the substrate. This thickness is required to ensure structural integrity and adequate performance since the screed is not reinforced by adhesion to the substrate.

Question 5

Floating screeds are mainly used to&#10;A) Improve the resistance to interstitial condensation of the floor&#10;B) Improve the acoustic insulation value of the floor&#10;C) Reduce the spread of rising damp to the floor finish&#10;D) Reduce the light transmission value of the floor&#10;E) Enable timber finishes to be applied to a concrete base

Accepted Answer

Floating screeds are used to improve the acoustic insulation value of the floor. They are typically made of lightweight materials such as foam or vermiculite and are laid on top of a base layer to create a level surface for the final floor finish. This helps to reduce sound transmission between floors and creates a more comfortable living or working environment.

Question 6

Terrazzo is a floor finish that is made using&#10;A) Pozzolanic binders&#10;B) Burnt Sienna pigment&#10;C) Crushed granite aggregate&#10;D) Terracotta aggregate&#10;E) Marble aggregate

Accepted Answer

Terrazzo is predominantly made using marble aggregate, along with a binding material such as cement or epoxy resin. While other aggregates and pigments may be added for variety, marble is the primary component that gives terrazzo its unique look and durability.

Question 7

The sustainability credentials of synthetic rubber sheet flooring differ from its natural rubber counterpart in that it is not&#10;A) Biodegradable&#10;B) Recyclable&#10;C) Toxic&#10;D) Reclaimable&#10;E) Durable

Accepted Answer

The sustainability credentials of synthetic rubber sheet flooring differ from natural rubber in that it is not biodegradable. While both options are durable, synthetic rubber is not as sustainable as natural rubber as it cannot be broken down by natural processes. Additionally, natural rubber is reclaimable and can be recycled, whereas synthetic rubber is not typically recyclable. While there may be some toxic chemicals involved in the production of both types of rubber, this does not necessarily impact their overall sustainability credentials.

Question 8

One advantage of dry lining is&#10;A) It is stronger than a plaster finish&#10;B) It is stronger than a plaster finish&#10;C) It has a low moisture absorption coefficient&#10;D) It can receive direct decoration&#10;E) It resists indentation

Accepted Answer

Dry lining can receive direct decoration, unlike plaster finishes which require a period of drying before they can be decorated.

Question 9

The spacing of the metal furrings used in dry lining is determined by&#10;A) The type of background material&#10;B) The thickness of the background material&#10;C) The type of timber used for the battens&#10;D) The type of plasterboard used&#10;E) The thickness of plasterboard used

Accepted Answer

The thickness of plasterboard used determines the spacing of the metal furrings used in dry lining.

Question 10

Coving is used on ceiling finishes to&#10;A) Provide a space for cables to be run&#10;B) Cover the joint between the ceiling and wall finishes&#10;C) Enable differential movement between the ceiling and wall finishes to take place&#10;D) Reflect sound into the void above the ceiling&#10;E) Provide a fixing for smoke detectors

Accepted Answer

Coving is specifically designed to cover the joint between the ceiling and wall finishes, providing a neat and decorative finish. It does not provide space for cables, enable movement, reflect sound, or provide a fixing for smoke detectors.

Deck 21: Internal Finishes