PLTW CEA 2.3 Exam Questions and Verified Answers Graded A+ 2026/27
Compression Strength - The maximum compressive stress a material can withstand
without failure.
Concrete - A solid, hard material produced by combining Portland cement, aggregates,
sand, water and sometimes additional mixtures.
Design Temperature Differential - The difference between the indoor temperature in
winter and the outdoor design temperature in winter. The design temperature differential or
design range is used in calculating the space heating requirements of a dwelling unit under the
engineering-based methodology.
Fascia - The finish board covering the edges of rafters and eaves.
Footing - The lowest, widest part of the foundation that distributes the load over a broad
area of the soil.
Foundation - The lower part of a building, which transfers structural loads from the
building to the soil.
Heat Loss - The energy needed to warm outside air leaking into a building through cracks
around doors, windows, and other areas.
Radiant Heat - Energy radiated or transmitted as rays or waves, in the form of particles.
, Rafter - Member of a roof structural frame that supports the sheathing and other roof
loads.
Rebar - Steel bar used to reinforce concrete.
R-Value - The numerical value used to indicate the resistance to the flow of heat.
Sole Plate - The plate placed at the bottom of a wall.
Square (Quantity of Shingles) - In roofing, 100 square feet of roofing material.
Tensile Strength - The maximum stress a material subjected to a stretching load can
withstand without tearing.
Thermal Conduction - The process of heat transfer through a solid by transmitting kinetic
energy from one molecule to the next.
Thermal Convection - Heat transmission by the circulation of a liquid or a heated gas or
air.
Transmission Load - Heat loss/gain resulting from the conduction of heat through the
building envelope.
Compression Strength - The maximum compressive stress a material can withstand
without failure.
Concrete - A solid, hard material produced by combining Portland cement, aggregates,
sand, water and sometimes additional mixtures.
Design Temperature Differential - The difference between the indoor temperature in
winter and the outdoor design temperature in winter. The design temperature differential or
design range is used in calculating the space heating requirements of a dwelling unit under the
engineering-based methodology.
Fascia - The finish board covering the edges of rafters and eaves.
Footing - The lowest, widest part of the foundation that distributes the load over a broad
area of the soil.
Foundation - The lower part of a building, which transfers structural loads from the
building to the soil.
Heat Loss - The energy needed to warm outside air leaking into a building through cracks
around doors, windows, and other areas.
Radiant Heat - Energy radiated or transmitted as rays or waves, in the form of particles.
, Rafter - Member of a roof structural frame that supports the sheathing and other roof
loads.
Rebar - Steel bar used to reinforce concrete.
R-Value - The numerical value used to indicate the resistance to the flow of heat.
Sole Plate - The plate placed at the bottom of a wall.
Square (Quantity of Shingles) - In roofing, 100 square feet of roofing material.
Tensile Strength - The maximum stress a material subjected to a stretching load can
withstand without tearing.
Thermal Conduction - The process of heat transfer through a solid by transmitting kinetic
energy from one molecule to the next.
Thermal Convection - Heat transmission by the circulation of a liquid or a heated gas or
air.
Transmission Load - Heat loss/gain resulting from the conduction of heat through the
building envelope.
