Building Engineering MCQ Flashcards
7 cards from real Building Engineering practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Building Engineering MCQ flashcards as text
In HVAC design, what does 'sensible heat ratio' (SHR) represent?
Answer: The ratio of sensible heat to total (sensible + latent) heat load
SHR is the proportion of sensible cooling to total cooling load, indicating how much of the load involves temperature change versus moisture removal.
What does the R-value of insulation measure?
Answer: Thermal resistance to heat flow per unit area
R-value (h·ft²·°F/BTU) measures a material's resistance to conductive heat flow; higher R-values indicate better insulating performance.
What is the purpose of a 'control joint' in masonry construction?
Answer: To create a pre-defined plane of weakness preventing random cracking
Control joints are intentional weakened planes in masonry that concentrate shrinkage and thermal cracking at predictable locations.
Which foundation type is most appropriate when soil bearing capacity is very low and loads must be transferred to deeper, competent strata?
Answer: Pile foundation
Pile foundations transfer building loads through weak upper soils to deeper bearing strata via end bearing or skin friction.
In structural steel, what is the difference between a 'compact' and 'non-compact' section?
Answer: Compact sections can reach full plastic moment without local buckling; non-compact sections cannot
Compact sections have width-to-thickness ratios below limits that allow full plastic hinge formation; non-compact sections experience local buckling before full plasticity.
What is the primary benefit of post-tensioning concrete compared to conventional reinforced concrete?
Answer: Allows longer spans and thinner slabs by introducing compressive prestress
Post-tensioning applies compressive force via stressed tendons after concrete cures, counteracting tensile stresses and enabling longer spans with less material.
According to OSHA, what is the minimum height at which fall protection is required for construction workers on walking/working surfaces?
Answer: 6 feet
OSHA 29 CFR 1926.502 requires fall protection for construction workers at heights of 6 feet or more above a lower level.