CSDB 무료 덤프문제 온라인 액세스

Traditional cavity wall construction typically consists of:

• A.Only external render
• B.Single solid brick wall
• C.Internal plasterboard only
• D.Two leaves of brickwork with an air gap between them

Chemical DPC solutions typically consist of:

• A.Water only
• B.Silicate or resin-based chemicals that form an impermeable layer in the masonry pores
• C.Paint
• D.Concrete

BS 5250:2021 recommends ventilation rates in kitchens to control moisture from cooking:

• A.Ventilation only in winter
• B.No ventilation needed
• C.Opening windows occasionally
• D.Continuous extraction ventilation throughout the day with higher rates during moisture generation (cooking)

Common repairs required to arrest penetrating damp include:

• A.Installing ventilation only
• B.Interior painting only
• C.Repointing mortar joints, patching cracks, clearing gutters, and replacing failed flashings
• D.Removing internal plaster only

Regarding health and safety for chemical DPC application, the COSHH hierarchy of controls indicates the primary measure should be:

• A.Providing operatives with protective gloves only
• B.Using only manual application
• C.Assuming no hazard exists
• D.Engineering controls such as proper ventilation and extraction systems during application