MArch Master of Architecture Construction Materials & Methods

Question 1

What is the primary characteristic that differentiates Type I (Normal) Portland cement from Type III (High Early Strength) Portland cement?

Accepted Answer

Type III has a finer grind and higher C3S content, achieving strength faster but generating more heat of hydration

Answer

Type III cement is ground finer and has a higher proportion of tricalcium silicate (C3S), accelerating hydration and early strength gain, which is useful for cold weather or fast-track construction.

Question 2

In steel construction, what does a 'W8×31' designation indicate about a structural member?

Accepted Answer

A wide-flange section approximately 8 inches deep weighing 31 pounds per linear foot

Answer

Standard AISC nomenclature for wide-flange sections gives the nominal depth in inches (8) and the weight in pounds per linear foot (31), allowing quick section selection.

Question 3

Cross-Laminated Timber (CLT) panels are manufactured by:

Accepted Answer

Gluing layers of dimensional lumber with alternating grain orientations perpendicular to each other

Answer

CLT is made by bonding layers of dimensional lumber with each layer's grain perpendicular to adjacent layers, creating a dimensionally stable, two-way structural panel.

Question 4

The term 'thermal bridging' in building envelope design refers to:

Accepted Answer

High-conductivity elements (such as metal studs) that bypass insulation and allow heat to flow through the envelope

Answer

Thermal bridging occurs when conductive materials penetrate or bypass the insulation layer, creating localized paths for heat flow that reduce the effective R-value of the assembly.

Question 5

In masonry construction, what is the primary structural purpose of a steel lintel above a window or door opening?

Accepted Answer

To carry the masonry loads above the opening and transfer them to the jambs on either side

Answer

A lintel spans the opening and supports the weight of masonry above, transferring those loads laterally to the masonry walls at each side of the opening.

MArch Master of Architecture Practice Test

MArch Master of Architecture Practice Test

MArch Master of Architecture Construction Materials & Methods