Engineering Materials·MCQ explained

Concrete is generally placed on a:

Try it first: pick an option, then read the explanation.

Correct answer: A. Form work

Detailed Explanation: Concrete Is Placed on Formwork

Why A (Form work) is correct: Formwork (also called shuttering) is the temporary framework, mould, or enclosure built to hold fresh (plastic) concrete in its desired shape until it hardens and gains sufficient strength. It is the standard term used in construction for the surface on and into which concrete is poured and compacted.

What Is Formwork?

AspectDetail
DefinitionTemporary structure that holds fresh concrete in shape while it cures
Materials usedTimber, plywood, steel, aluminium, fiberglass, fabric
PurposeDefines shape, contains concrete, supports weight until strength develops
CostTypically 20–25% of total concrete construction cost
WatertightnessTimber formwork uses tongue-and-groove joints to prevent cement slurry leakage

Why the Other Options Are Wrong

OptionVerdictReason
A. Form workCorrectStandard term for the mould/shuttering that receives fresh concrete
B. StandWrongNot a construction term for this purpose
C. MouldPartly correctUsed for precast elements in factories, not for in-situ construction; “formwork” is the correct term for site work
D. PlatformWrongA platform is a working surface for labourers, not a mould for concrete
  • Formwork = the correct answer; it is the fundamental temporary structure for in-situ concrete construction.
  • Shuttering = another name for formwork, used interchangeably in Indian construction practice.