問題一覧
1
what of they take action level for radon?
4 PC/L
2
For workers comp an employee has to work ___ amount of hours for ___ weeks or longer from the pressceding ____ weeks??
32/13or15/52
3
what is the purpose of a construction bond
binding contract insuring that the builder will do the work they are hired for
4
How soon can you backfill concrete block walls after they have been waterproofed?
minimum of 48 hours
5
Generally, columns in a 12" thick wall will be spaced no more than ____ OC (on center)
72 inch
6
A vertical mortar joint is called ___
head joint
7
When the air temperature is 80 degrees or higher, when must mortar be used?
within 2 1/2 hours
8
What is defined as the process of spreading mortar or cement plaster over the block wall?
parging
9
What consists of flat, horizontal areas of concrete that are usually 5" or less in thickness?
concrete flatwork
10
Also called a ground-support slab, this is a slab that is used in areas where the ground freezes fairly deep during winter
independent slab
11
Any fill should be compacted in lifts no more than ___ deep
6 inches
12
Driveways that have a grade of more than what percent should not be covered with gravel because the gravel will generally wash away?
7%
13
A surface that is ___ too early will not be durable
troweled
14
What produces boards of greater width than other cutting methods, however the boards are more likely to shrink or warp?
fat-sawn lumber
15
What is a general indication of the quality and strength of a piece of lumber?
C: grade
16
In regard to lumber, a general description of any variation from a flat surface, including bow, crook and cup is known as
wrap
17
The best way to prevent fungi attack is to
keep wood dry
18
What insects cut a 1/2" diameter hole into bare or untreated wood then build their nests by boring a tunnel parallel to the surface of the wood?
carpenter bees
19
___ is made from wood strands bonded with adhesive under heat and pressure
Orientated-strand board (OSB)
20
What are the advantages to engineered lumber?
all of the above
21
Laminated-veneer lumber (LVL) is defined as
a family of lumber products made with wood veneer as the basic element
22
What is a length of engineered wood stock that has the same depth as the I-joists?
rim board
23
What is defined as a closely spaced series of wedge-shaped cuts made in the mating surfaces
a finger joint
24
In what type of framing do the studs run from the sill plate to the top plate of the second floor and the first floor joists also rest on this sill?
balloon framing
25
In standard platform-frame construction, wall studs are commonly spaced ___ apart measured from the center of one stud to the center of the next
16”
26
What consists of 3 1/2" thick expanded polystyrene foam insulation between sheets of exterior plywood or oriented-strand board?
structural insulated panels (SIPs)
27
A dead load is
the total weight of the building
28
What is the most common mistake made when installing joist hangers?
to use too few nails