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CNST 251 Test 3 || with 100% Verified Solutions.
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  • CNST 251
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  • CNST 251

A building separation joint in a multistory building generally correct answers Runs through all floors and the roof Building separation hints in a long rectilinear correct answers 250 ft on center The width of a building separation joint is generally correct answers 1 1/2 to 2in A seismic ...

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  • August 4, 2024
  • 8
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

Subjects

  • a building separation joint in a multistory buildi

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  • CNST 251
  • CNST 251

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CNST 251 Test 3 || with 100% Verified Solutions.
A building separation joint in a multistory building generally correct answers Runs through all
floors and the roof

Building separation hints in a long rectilinear correct answers 250 ft on center

The width of a building separation joint is generally correct answers 1 1/2 to 2in

A seismic joint is generally similar to a building expansion joint but smaller in width correct
answers False (Much wider than a building joint)

Which of the following materials has the highest coefficient of thermal expansion correct
answers Plastics

The unit of measure for the coefficient of thermal expansion (alpha) is correct answers (C)^-1 or
(F)^-1

The unit of measure for the coefficient of moisture expansion (mu)is correct answers None of
these (Has no units of measure)

The equation used for determining the thermal movement, Sv, of a member is correct answers
alpha(L)(delta T)

Which of the following materials is subjected to moisture movement? correct answers Concrete,
Wood, Brick

Which of the following materials has irreversible moisture expansion during service that is , after
construction? correct answers Brick

Creep deformation occurs to correct answers Concrete members

Creep deformation is caused by correct answers Dead loads

A spandrel beam in a building is a beam that correct answers Runs on the outside edge of a floor
or roof

A non-loaded bearing wall that runs under a spandrel beam should be adequately operated from
the beam to allow the beam to move freely in the correct answers Vertical direction

Ind terming the total width of a movement hint between building components, we account for the
dimensional and construction tolerances. Poor or inadequate quality control on a construction
site correct answers Increases construction tolerances

, A joint between two walls has been determined to be 0.5 inches if the joints is not to be filled
with a sealant. If the same joint is to be filled with a class 50 sealant, its width should be correct
answers 1" minimum

Which of the following materials doesn't represent a joint sealant correct answers Polyvinyl
chloride

Which of the following joint sealant has the highest abrasion resistance? correct answers
Polyurethane

Which of the following joint sealants has the highest movement ability? correct answers Silicone

The sealant in a joint works best when it is subjected to correct answers Tension or compression
only

Three categories of Joint sealants correct answers Preformed tapes, caulks, elastomeric sealants

Tooling time correct answers Refers to the time (usually measured in minutes) that must be
allowed to elapse before the sealant changes from a liquid state to a semisolid state so that it can
be tooled

Cure time correct answers Refers to the time it takes for the sealant to be hardened to its final
elastomeric state

Application temperature range correct answers Refers to the ambient air temperature range
within which the sealant can be applied

Performance temperature range correct answers Is the range over which the sealant will maintain
its properties after it has cured

The embodied energy in a building is a measure of the energy consumed correct answers -To
extract raw materials from the earth and manufacture a finished building product
-In the administrative functions related to raw material extraction and product manufacturing
-To transport the finished product to the building site and install it in the building

Internal recycling correct answers The rescue of materials that are by-products or waste products
from manufacturing

External recycling correct answers Reclaiming a material for use in the manufacturing process of
eh same or a different product after it has become obsolete or unnecessary in its present
application

The increased use of a few modern-day chemicals has increased the thickness of the ozone layer
correct answers False

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