CTVET Ghana Certificate II - Carpentry key terms
CTVET Ghana Certificate II - Carpentry · Get comfortable with the vocabulary.
- Grain direction
The orientation of wood structure that influences strength, movement and machining behavior, requiring actual material and load interpretation.
- Structural grade
A specified classification and relevant evidence about timber suitability, which cannot be inferred merely from a smooth surface or familiar species name.
- Reference face
A selected controlled surface used for marking and relating parts consistently, distinct from an unfinished opposite edge chosen for convenience.
- Dry fit
A trial assembly used to check relevant geometry and relationships before final joining, without independently proving every structural or bond requirement.
- Service moisture condition
The relevant moisture environment for the timber’s intended use, which affects movement and cannot be replaced by one universal percentage.
- Connection load transfer
The actual transmission of forces through joints, fasteners and surrounding wood, requiring design rather than simply more glue or a larger nail.
- Thermal resistance
A defined opposition to heat flow in the supplied model, calculated from thickness and conductivity for an appropriate homogeneous layer.
- Thermal bridge
A localized pathway of different heat transfer at a junction or material interruption, requiring actual geometry and assembly assessment.
- Load path
The route by which actions are transmitted through members, connections and supports to the ground under the actual design conditions.
- Moisture-control layer
A specified part of a building assembly managing a relevant moisture route, whose continuity and connections matter beyond the visible finish.
- Airtightness
Resistance to unintended air leakage through the relevant enclosure, distinct from deliberately provided suitable ventilation for the building’s actual needs.
- Material compatibility
The suitability of interacting materials under the intended load, moisture, movement and exposure conditions, not simply similarity of appearance.
- Controlled revision
The approved version of technical information for the actual task, preventing different workers from following incompatible dimensions, details or instructions.
- Datum
A stated reference used to relate dimensions and locations consistently, rather than an arbitrary convenient edge selected independently for each part.
- Written dimension
The specified physical size or relationship stated on a drawing, distinct from measuring a potentially rescaled printed image with a ruler.
- System boundary
The chosen extent of a model or task that determines which inputs, outputs, forces and responsibilities are included in the reasoning.
- Measurement uncertainty
A characterization of the possible dispersion associated with a measurement result, distinct from the instrument’s smallest display increment.
- Acceptance criterion
A defined requirement used to judge appropriate evidence, which must not be replaced by an attractive appearance or an undocumented expectation.
- Hold point
A defined stage requiring appropriate verification or approval before work proceeds and makes the relevant feature difficult or impossible to inspect.
- Change control
An accountable process for assessing and approving a departure from specified information, rather than silently substituting a convenient product or method.
- Temporary stability
The needed resistance to instability during an intermediate construction stage, which cannot be assumed from the completed structure’s final load path.
- Task-specific control
A protective measure selected for the actual hazard, equipment, conditions and competence, rather than a universal glove, distance or generic PPE instruction.
- Net quantity
The amount calculated for the defined work before separately specified allowances, which must use consistent dimensions and measurement conventions.
- Handover evidence
Relevant records, observations, accepted conditions and unresolved issues communicated to the responsible recipient at completion, beyond a neat visible surface.