CITB Construction Methods and Materials 5

Question 1

What is the term for concrete placed at near-freezing temperatures that requires special protection measures?

Accepted Answer

Cold-weather concrete

Answer

Hot-weather concrete

Answer

Mass concrete

Answer

Lightweight concrete

Question 2

In structural steel fabrication, what does 'camber' refer to?

Accepted Answer

A deliberate upward pre-bend in a beam to offset anticipated deflection under load

Answer

The angle of a beam's web relative to its flanges

Answer

The thickness tolerance of the flange plate

Answer

The welding process used to join sections

Question 3

Which type of wall is defined as carrying both its own weight and loads from floors or roofs above?

Accepted Answer

Load-bearing wall

Answer

Curtain wall

Answer

Partition wall

Answer

Cavity wall

Question 4

What is the purpose of a 'shot-fired' or powder-actuated tool on a construction site?

Accepted Answer

To fasten materials like track or conduit directly to concrete or steel using explosive charges

Answer

To drill holes in masonry for anchor installation

Answer

To compact soil in confined spaces

Answer

To cut rebar to required lengths

Question 5

In wood-frame construction, what is the function of blocking installed between floor joists?

Accepted Answer

All of the above

Answer

To act as a fire stop and prevent lateral buckling of joists

Answer

To provide a surface for attaching floor sheathing edges

Answer

To serve as a nailer for ceiling fixtures below

Question 6

What is the key characteristic that distinguishes 'Type I' Portland cement from 'Type III' Portland cement?

Accepted Answer

Type III gains strength faster due to finer grinding, while Type I is general purpose

Answer

Type I has lower heat of hydration than Type III

Answer

Type I is used for sulfate-resistant applications; Type III is not

Answer

Type III has lower compressive strength at 28 days than Type I

Question 7

What is the primary structural difference between a 'one-way' and a 'two-way' concrete slab?

Accepted Answer

One-way slabs span in a single direction and are reinforced accordingly; two-way slabs span in both directions with reinforcement in both

Answer

One-way slabs are thicker than two-way slabs

Answer

Two-way slabs always require drop panels; one-way slabs do not

Answer

One-way slabs can only be used in residential construction