CON 151 Exam 2 Study Guide Questions And All Correct Answers.
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Course
CON 151
Institution
CON 151
Which of the following is a high strength mortar and has greater durability than the other types of mortar? - Answer -Type M mortar
Which of the following mortars is a low-strength mortar suitable for interior non-load bearing masonry only and should never be subject to freeze thaw cycles? - ...
CON 151 Exam 2 Study Guide Questions
And All Correct Answers.
Which of the following is a high strength mortar and has greater durability than the other types of
mortar? - Answer -Type M mortar
Which of the following mortars is a low-strength mortar suitable for interior non-load bearing masonry
only and should never be subject to freeze thaw cycles? - Answer -Type O mortar
Modulus of Elasticity most directly relates to which property of a material? - Answer -Stifness
There are two classifications of trees? They are? - Answer -Deciduous and Coniferous
The actual size of a 2X4 is? - Answer 1-1/2 & 3-1/2
The actual size of a 2X6 is? - Answer 1-1/2 & 5-1/2
The actual size of a 2X8 is? - Answer 1-1/2 & 7-1/4
The actual size of a 2X10 is? - Answer 1-1/2 & 9-1/4
A sample piece of lumber exactly 4 inches wide and 16 inches deep is cut from a log with a moisture
content of 85%. The lumber is seasoned till its moisture content reaches fiber saturation point (30%
M.C.) What is the depth dimension of the lumber at this point? - Answer -16 inches
The strength of wood increases as its moisture content? - Answer -Decreases
The rings of a tree are classified as either spring or summer growth. The spring rings are represented by
solid black lines while the summer growth rings are wider and lighter colored. - Answer False
, A growth of limbs from a tree creates knots in the lumber we use. In some cases these knots create
potential failures in the lumber that we use for framing several types of structures. Knots originate from
what part of the tree? - Answer -Pith
Which orientation should be observed for floor joists with knots? - Answer -Joists should be turned so
the largest edge knots are on top.
What type of warp is depicted in photo? (just the edges of the the width length curve up forming a U
shape) - Answer -Cup
What type of warp is depicted in photo?(Just one corner of the wood board is curving upwards) - Answer
-Twist
What type of warp is depicted in photo? (Just the ends of the board curve up to make a long bow shape)
- Answer -Bow
What type of warp is depicted in photo? (The wood block begins to tilt and become parallelogram
instead of rectangle) - Answer -Diamond
For most species wood will not decay if moisture content is? - Answer -below 20%
The grain on either face of a sheet of plywood.. - Answer -runs parallel to the long axis of the panel
The size of a typical plywood panel is? - Answer - 4 feet by 8 feet
which exposure rating is appropriate for plywood that is exposed to the weather for a long time during
construction, but finally protected from weather permanently? - Answer -Exposure 1
Which guideline applies to the wetting of concrete masonry units prior to installation? - Answer -
Concrete masonry should never be wetted under any circumstances..
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