CPC Construction Methods & Materials Flashcards
6 cards from real CPC practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 CPC Construction Methods & Materials flashcards as text
Which concrete curing method involves covering freshly placed concrete with wet burlap or curing blankets?
Answer: Wet curing
Wet curing keeps concrete moist by covering it with water-saturated materials like burlap, promoting proper hydration.
What is the primary purpose of adding fly ash as a supplementary cementitious material in concrete?
Answer: Reduce water demand and improve long-term durability
Fly ash reduces water demand, improves workability, and enhances long-term durability and resistance to sulfate attack.
In steel construction, what does the term 'camber' refer to?
Answer: Intentional upward curvature built into a beam
Camber is a deliberate upward curve built into a beam so that under load it deflects back to a level position.
Which masonry unit is classified as a hollow unit under ASTM standards?
Answer: Concrete masonry unit with core area > 25% of gross area
ASTM C90 defines a hollow CMU as one whose net cross-sectional area in any plane is less than 75% of its gross cross-sectional area.
What is the standard slump range for normal structural concrete used in columns and walls?
Answer: 2–4 inches
Normal structural concrete for columns and walls typically requires a slump of 2–4 inches to balance workability with strength.
Which type of pile is most suitable for soils with obstructions or boulders that prevent driven piles from reaching bearing strata?
Answer: Auger-cast (ACIP) pile
Auger-cast in-place (ACIP) piles are drilled into place, allowing them to penetrate past obstructions and reach bearing strata.