Question

Which construction technique involves assembling pre-made components off-site and then transporting them to the construction site for final assembly?

• A. Traditional Construction
• B. Prefabrication
• C. Modular Coordination
• D. PERT

Hint:

\textbf{Prefabrication:} Manufacturing building components in a factory (off-site) and assembling them on-site.
Advantages can include better quality control, faster construction, reduced site disruption, and potentially lower costs.
Examples: Precast concrete panels, prefabricated wall systems, modular building units.
Modular coordination is a system of dimensional standardization. PERT is a project management technique.

Answer 1

The Correct Option is B

The construction technique described is Prefabrication.
(a) Traditional Construction (Stick-built / Site-built): Involves constructing most or all elements of a building on the construction site itself, from raw or basic materials.
(b) Prefabrication (Prefab): This is a construction method where building components or modules are manufactured in a factory environment (off-site) and then transported to the construction site for assembly (erection). This can range from individual components (like wall panels, roof trusses, precast concrete elements) to complete volumetric modules.
(c) Modular Coordination: This is a dimensional concept in building design and construction. It aims to standardize the dimensions of building components and spaces based on a basic module (e.g., 100mm or 4 inches) to facilitate design flexibility, interchangeability of components, and efficiency in manufacturing and assembly. It is a principle that supports prefabrication but is not the technique itself.
(d) PERT (Program Evaluation and Review Technique): PERT is a project management tool used for planning, scheduling, organizing, coordinating, and controlling complex projects. It involves identifying tasks, dependencies, and time estimates to determine the critical path and project duration. It is a management technique, not a construction technique. The description "assembling pre-made components off-site and then transporting them to the construction site for final assembly" directly defines prefabrication. \[ \boxed{\text{Prefabrication}} \]