153 Exam Questions for CSDB Updated Versions With Test Engine
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NEW QUESTION # 56
The height to which rising damp typically rises in a solid masonry wall without a DPC is:
- A. Always to the eaves
- B. Always above 1500mm
- C. Never rises above ground level
- D. 300-500mm in most cases
Answer: D
NEW QUESTION # 57
Spot ventilation (such as kitchen/bathroom extraction) should operate:
- A. Never
- B. Only in winter
- C. Always, even when not needed
- D. During and for a period after moisture-generating activities (cooking, bathing) with exhaust to the outside
Answer: D
NEW QUESTION # 58
A surveyor diagnoses condensation in a kitchen with persistent black mould despite recent cleaning. The underlying cause is likely:
- A. Structural failure
- B. Penetrating damp
- C. Rising damp
- D. Inadequate extraction ventilation, high moisture generation from cooking, and insufficient heating
/insulation
Answer: D
NEW QUESTION # 59
The main objective of rising damp control is to:
- A. Remove all masonry
- B. Ignore the issue
- C. Mask the problem
- D. Prevent moisture rising by introducing a DPC barrier and managing any existing moisture/salts
Answer: D
NEW QUESTION # 60
BS 8102:2022 specifically addresses waterproofing for:
- A. External walls
- B. Windows and doors
- C. Pitched roofs
- D. Below-ground structures
Answer: D
NEW QUESTION # 61
Modern buildings typically incorporate a DPM (Damp Proof Membrane) at:
- A. Doors only
- B. Windows only
- C. Roof level only
- D. Ground floor level to create a barrier against ground moisture
Answer: D
NEW QUESTION # 62
BS 6576:2005 requires chemical DPC injection to penetrate to approximately:
- A. 50-75% of wall thickness
- B. 25% of wall thickness
- C. 80-90% of wall thickness
- D. Full thickness with breakthrough
Answer: C
NEW QUESTION # 63
To treat penetrating damp effectively, the surveyor's primary recommendation should be:
- A. Identify and repair the source (external defects) rather than applying internal treatments
- B. Apply DPM internally only
- C. Ignore external factors
- D. Never repair external defects
Answer: A
NEW QUESTION # 64
Wind-driven rain exposure is an important factor in diagnosing penetrating damp because:
- A. Buildings in high exposure areas are more susceptible to rain penetration through defects
- B. Exposure only affects roofs
- C. All buildings have the same exposure
- D. It is irrelevant
Answer: A
NEW QUESTION # 65
During a basement waterproofing survey, the surveyor identifies the building is partially below water table with evidence of seepage through walls. To comply with BS 8102:2022, what is the appropriate next step?
- A. Accept water ingress
- B. Recommend only internal decoration
- C. Specify protection Type A (external drained cavity), Type B (integral concrete), or Type C (internal managed water ingress) depending on circumstances
- D. Install only internal gutter system
Answer: C
NEW QUESTION # 66
In a crawl space with poor ventilation, the surveyor notes elevated moisture levels (above 80% RH) and visible mould growth. BS 5250:2021 recommends:
- A. Accepting mould growth
- B. Sealing all openings
- C. Adequate ventilation to manage relative humidity and prevent condensation
- D. Installing heating only
Answer: C
NEW QUESTION # 67
Mechanical ventilation systems (such as heat recovery ventilation) help control condensation by:
- A. Increasing moisture
- B. Reducing heating
- C. Providing continuous fresh air supply while retaining heat, maintaining adequate air change rates
- D. Eliminating all air movement
Answer: C
NEW QUESTION # 68
Rising damp is moisture that:
- A. Enters through windows
- B. Travels upward from the ground through capillary action in masonry
- C. Falls from the roof
- D. Is caused by condensation only
Answer: B
NEW QUESTION # 69
Under COSHH regulations, before using hazardous substances on site, the employer must:
- A. Simply provide the product
- B. Only provide PPE
- C. Assess the risk and implement control measures
- D. Assume no risk
Answer: C
NEW QUESTION # 70
Condensation occurs when:
- A. Warm moist air contacts a cold surface, cooling below its dew point temperature
- B. Rain falls on external walls
- C. Rising damp reaches saturation
- D. Cavity insulation is installed
Answer: A
NEW QUESTION # 71
Material Safety Data Sheets (MSDS) for chemical damp treatments must contain information on:
- A. Product cost only
- B. Hazards, safe handling, PPE, storage, and disposal procedures
- C. Packaging materials only
- D. Supplier name only
Answer: B
NEW QUESTION # 72
COSHH stands for:
- A. Control of Substances Hazardous to Health
- B. Chemical and Organic Substance Health Hazards
- C. Construction Site Health Organisation Handbook
- D. Control of Site Hazards and Health
Answer: A
NEW QUESTION # 73
BS 5250:2021 recommends that penetrating damp control should prioritize:
- A. Only internal remedies
- B. Elimination of water source at the external envelope before considering internal measures
- C. Accepting the damp
- D. Only applying coatings
Answer: B
NEW QUESTION # 74
When diagnosing condensation, identifying the dew point temperature is important because:
- A. Surfaces below dew point will form condensation; understanding this helps identify which surfaces are at risk
- B. It determines if rising damp exists
- C. It only applies to windows
- D. It is not relevant
Answer: A
NEW QUESTION # 75
Rising damp moisture typically originates from:
- A. Rainwater entering walls
- B. Ground moisture drawn upward by capillary action
- C. Condensation from ventilation
- D. The roof
Answer: B
NEW QUESTION # 76
When condensation appears on windows, it typically indicates:
- A. Structural failure
- B. Rising damp
- C. Poor quality windows
- D. High relative humidity in the building, with windows being coldest surfaces
Answer: D
NEW QUESTION # 77
When environmental factors (external temperature, solar gain, rainfall timing) affect damp diagnosis, the surveyor should:
- A. Assume standard conditions always
- B. Only measure indoors
- C. Record environmental conditions at inspection; note how conditions may affect findings and interpretation
- D. Ignore environmental factors
Answer: C
NEW QUESTION # 78
A commercial property has severe rising damp but alternative treatments (electro-osmotic, capillary breaks) cannot be installed due to structural constraints. The surveyor's recommendation should include:
- A. Only internal cosmetic treatments
- B. Demolition of the building
- C. Accepting permanent damp
- D. Conventional chemical DPC installation as appropriate method, with realistic expectations regarding moisture reduction timescale
Answer: D
NEW QUESTION # 79
A listed building (Grade II*) shows clear rising damp with tide marks to 800mm. Owner seeks rapid chemical DPC treatment. The surveyor should:
- A. Recommend modern cementitious replastering
- B. Decline to diagnose listed building damp
- C. Proceed with standard chemical DPC injection immediately
- D. Recommend lime-based DPC approaches, reversible treatments, and specialist conservation advice considering building age
Answer: D
NEW QUESTION # 80
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