Floor systems of commercial buildings are of two types; one type, an ____, is made of poured-in-place concrete.
A) on-mark floor system
B) on-grade floor system
C) off-grade floor system
D) off-mark floor system

Question

Quizplus · Accepted Answer

An on-grade floor system is made of poured-in-place concrete and is commonly used in commercial buildings. The other options, such as off-grade and off-mark floor systems, do not accurately describe this type of floor system. The term "on-mark" is not commonly used in the construction industry for floor systems.

Floor Systems of Commercial Buildings Are of Two Types; One