CM 1112 LSU Exam 2 (Stephanie Heumann)| Ques ons
and answers | Updated RATED A+ | 2026
True
T/F: Dry-press process uses IDRW porosity clays.
False
T/F: Column forms always require form es.
False
T/F: Efflorescence may suddenly appear on masonry wall a"er it is built. This is an indica on of
faulty construc on.
True
T/F: Precast elements are some mes joined together using gravity.
True
T/F: Bricks shrink considerably during drying and firing.
True
T/F: Concrete strength is specified by a compressive strength at 28 days.
False
T/F: Precast elements may be reinforced by pre-stressing or conven onal reinforcing, but never
a combina on of the two.
True
T/F: Insula ng Concrete Forms become a permanent part of the structure.
False
T/F: Double T precast slabs are hard to handle due to their pping issues.
True
T/F: A composite masonry wall is named because it features an outer wythe of stone or brick
and an interior wythe of CMU's.
,False
T/F: The minimum recommended cavity depth is 2 feet.
True
T/F: Pre-stressing tensions the steel and places the concrete in compression, giving a more
efficient structural member.
True
T/F: Compared to site-cast concrete, pre-cast concrete erec on is faster.
True
T/F: Mortar seals joints between the masonry units.
True
T/F: Stone masonry can be set/stacked without mortar.
True
T/F: Post tensioning reduces the necessary depth of a structure and helps reduce cracking.
True
T/F: Every construc on site ______________ excava on.
False
T/F: Fully precast high-___________________ in modern construc on.
True
T/F: Hollow core slabs may be produced by direct extrusion.
Periodic Kiln
Bunches of bricks are loaded, fired, cooled and removed.
So" Mud Process
Rela vely moist clay is pressed into individual molds
Quartz Based Stone
Sedimentary rock
Bearing Pads
, Avoid grinding and allows for expansion and contrac on.
CSI
Organiza on that establishes the na onally accepted specifica on format for organizing
informa on about materials and methods of construc on.
Steel Reinforcing Bars
Type of precast beam used on longer spans such as bridges and highways.
Transverse dividers used in pre-cast cas ng beds to divide the pre-cast elements into separate
specific lengths.
Block-Outs
Openings formed and cast in concrete structures.
Haunch
A structural column component that provides direct support of a beam or slab element.
Pads that are inserted at points of precast concrete-to-concrete contact to avoid grinding at
these points of high stress.
Quicklime
Limestone and other minerals are finely ground and heated to produce calcium and magnesium
oxides
Igneous
Rock developed magma/volcanic erup on
Tunnel Kiln
Brick loads pass con nuously from one into another.
Bull Float
Is drawn back and forth over the slab
Makes deep, long cuts into the solid rock
A long-bladed diamond saw, traveling on rails
Rowlock
Brick laid on its face, with end visible
and answers | Updated RATED A+ | 2026
True
T/F: Dry-press process uses IDRW porosity clays.
False
T/F: Column forms always require form es.
False
T/F: Efflorescence may suddenly appear on masonry wall a"er it is built. This is an indica on of
faulty construc on.
True
T/F: Precast elements are some mes joined together using gravity.
True
T/F: Bricks shrink considerably during drying and firing.
True
T/F: Concrete strength is specified by a compressive strength at 28 days.
False
T/F: Precast elements may be reinforced by pre-stressing or conven onal reinforcing, but never
a combina on of the two.
True
T/F: Insula ng Concrete Forms become a permanent part of the structure.
False
T/F: Double T precast slabs are hard to handle due to their pping issues.
True
T/F: A composite masonry wall is named because it features an outer wythe of stone or brick
and an interior wythe of CMU's.
,False
T/F: The minimum recommended cavity depth is 2 feet.
True
T/F: Pre-stressing tensions the steel and places the concrete in compression, giving a more
efficient structural member.
True
T/F: Compared to site-cast concrete, pre-cast concrete erec on is faster.
True
T/F: Mortar seals joints between the masonry units.
True
T/F: Stone masonry can be set/stacked without mortar.
True
T/F: Post tensioning reduces the necessary depth of a structure and helps reduce cracking.
True
T/F: Every construc on site ______________ excava on.
False
T/F: Fully precast high-___________________ in modern construc on.
True
T/F: Hollow core slabs may be produced by direct extrusion.
Periodic Kiln
Bunches of bricks are loaded, fired, cooled and removed.
So" Mud Process
Rela vely moist clay is pressed into individual molds
Quartz Based Stone
Sedimentary rock
Bearing Pads
, Avoid grinding and allows for expansion and contrac on.
CSI
Organiza on that establishes the na onally accepted specifica on format for organizing
informa on about materials and methods of construc on.
Steel Reinforcing Bars
Type of precast beam used on longer spans such as bridges and highways.
Transverse dividers used in pre-cast cas ng beds to divide the pre-cast elements into separate
specific lengths.
Block-Outs
Openings formed and cast in concrete structures.
Haunch
A structural column component that provides direct support of a beam or slab element.
Pads that are inserted at points of precast concrete-to-concrete contact to avoid grinding at
these points of high stress.
Quicklime
Limestone and other minerals are finely ground and heated to produce calcium and magnesium
oxides
Igneous
Rock developed magma/volcanic erup on
Tunnel Kiln
Brick loads pass con nuously from one into another.
Bull Float
Is drawn back and forth over the slab
Makes deep, long cuts into the solid rock
A long-bladed diamond saw, traveling on rails
Rowlock
Brick laid on its face, with end visible
