[2026] Valid CSDB test answers & PCA CSDB exam pdf [Q67-Q87]

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[2026] Valid CSDB test answers & PCA CSDB exam pdf

Verified CSDB dumps Q&As – Pass Guarantee or Full Refund

NEW QUESTION 67
Wind-driven rain exposure is an important factor in diagnosing penetrating damp because:

It is irrelevant

Buildings in high exposure areas are more susceptible to rain penetration through defects

All buildings have the same exposure

Exposure only affects roofs

NEW QUESTION 68
To prevent penetrating damp, external maintenance should include:

Never inspecting gutters

Regular inspection and maintenance of gutters, downpipes, pointing, and roof flashings

Applying cladding only

Ignoring external defects

NEW QUESTION 69
Internal treatments for penetrating damp (when external repairs are not possible) should:

Always be the first option

Be considered only if external repairs cannot be made, with appropriate membranes installed behind affected linings

Be used alone without external investigation

Never be used

NEW QUESTION 70
The main objective of rising damp control is to:

Mask the problem

Prevent moisture rising by introducing a DPC barrier and managing any existing moisture/salts

Ignore the issue

Remove all masonry

NEW QUESTION 71
Hazardous substances used in damp treatment can enter the body through:

Inhalation only

Inhalation, ingestion, skin absorption, and through eyes/open wounds

Skin contact only

Ingestion only

NEW QUESTION 72
In a crawl space with poor ventilation, the surveyor notes elevated moisture levels (above 80% RH) and visible mould growth. BS 5250:2021 recommends:

Sealing all openings

Adequate ventilation to manage relative humidity and prevent condensation

Installing heating only

Accepting mould growth

NEW QUESTION 73
The soluble salts present in rising damp can cause:

Improved plaster adhesion

Damage to decorations, spalling of plaster, and efflorescence

Better paint coverage

Increased structural strength

NEW QUESTION 74
When comparing diagnostic methods for rising damp, the calcium carbide test is particularly valuable because:

It is fastest

It is cheapest only

It provides accurate moisture measurement unaffected by hygroscopic salts, unlike resistance meters

It identifies damp type

NEW QUESTION 75
The height to which rising damp typically rises in a solid masonry wall without a DPC is:

Always to the eaves

300-500mm in most cases

Always above 1500mm

Never rises above ground level

NEW QUESTION 76
Thermal insulation improvements reduce condensation risk by:

Increasing ventilation

Raising interior surface temperatures, reducing the temperature difference between air and surfaces

Reducing occupancy

Lowering heating

NEW QUESTION 77
Replastering after DPC installation should use:

Standard lime mortar immediately

Specialized low-salt plaster after sufficient drying and salt removal, with compatible finishes

Concrete

No plaster

NEW QUESTION 78
The Property Care Association Code of Practice for the Investigation and Control of Dampness recommends that rising damp diagnosis should include:

Visual inspection only

Moisture meter readings only

Multiple diagnostic techniques to confirm diagnosis

Professional opinion without testing

NEW QUESTION 79
Rising damp and penetrating damp are differentiated during diagnosis primarily by:

The surveyor’s guess

Location pattern (rising damp shows tide marks from ground; penetrating damp linked to external defects and rainfall) and diagnostic testing

Appearance only

Building age

NEW QUESTION 80
When assessing timber decay (particularly dry rot – Serpula lacrymans) in relation to dampness, the surveyor must understand that:

Dry rot causes damp

Damp above 20% moisture content creates conditions for fungal growth; treating damp is essential for timber remediation

Damp and decay are unrelated

Fungal decay stops growth when treated with biocide alone

NEW QUESTION 81
When a surveyor recommends cavity wall tie replacement due to corrosion from penetrating damp, this is important because:

Ties are non-structural

Corroded ties can lose structural integrity, affecting wall stability and cavity function

All ties fail equally

Ties are irrelevant to damp

NEW QUESTION 82
Penetrating damp is moisture that:

Rises from the ground

Enters horizontally through external walls during or after rainfall

Occurs only in basements

Is caused by poor ventilation

NEW QUESTION 83
After chemical DPC installation, salt contamination requires management because:

Salts disappear naturally

Hygroscopic salts can reabsorb atmospheric moisture, requiring specialized remedial plaster and potentially salt removal

Salts are harmless

No management needed

NEW QUESTION 84
Heating is important for condensation control because:

It generates moisture

It warms surfaces above the dew point and helps moisture evaporation

It is not relevant

It increases humidity

NEW QUESTION 85
During survey of a property with damp, the surveyor observes Serpula lacrymans (dry rot) affecting structural timber in the basement. The timber has elevated moisture content. The appropriate approach is:

Treat dry rot without addressing moisture

Treat dry rot only with chemical biocides

Address the moisture source as priority (likely rising damp or condensation), then manage timber decay remediation

Accept the structural damage

NEW QUESTION 86
Asbestos awareness is important for surveyors because:

It is not relevant to damp surveying

Asbestos may be present in older buildings and requires specialist handling if disturbed

Only electricians need to know about asbestos

Asbestos poses no health risk

NEW QUESTION 87
When environmental factors (external temperature, solar gain, rainfall timing) affect damp diagnosis, the surveyor should:

Ignore environmental factors

Record environmental conditions at inspection; note how conditions may affect findings and interpretation