Building Construction Ch. 9
What is the ignition temperature of carbon monoxide?
1128 degrees F
Masonry buildings with spans greater than _____ feet must have interior bearing walls.
25 feet
Steel cable will have complete failure at _____ degrees F.
800
Masonry walls in ordinary construction may be made up of?
All of one material, Different materials used in different areas, different materials may be combined to form composite construction (all the above)
In older masonry buildings, the interior walls, if not of masonry, are of?
Balloon-frame
In the typical downtown ordinary construction building, the side walls are the __________ walls, whereas the front and back walls are __________.
Bearing, non-bearing
Which of the following is a common cause for the failure of a fire door during a fire incident?
Blocked Door Path
Exterior walls of Type III or ordinary-construction buildings are commonly made from this construction material?
Brick
In earlier days, ordinary construction was known as?
Brick and wood-joist construction
There are many ways to stabilize a wall in ordinary construction buildings, which of the following is one of these?
Buttresses or masses of masonry outside the wall Pilasters or columns built inside the wall Wall columns built within the wall
A free-standing wall unsecured at the top best describes which type of wall?
Cantilevered
Which term best defines hollow walls in which wythes are tied together with steel ties or masonry trusses?
Cavity walls
Typically, the longest walls of a Type III or ordinary-construction building are the load-bearing walls. The short walls provide limited structural support and commonly are called?
Curtain walls
Which term represents a connection made to the girders and imparts some lateral stability under normal conditions?
Dog Iron
One of the strengths typically identified in Type III or ordinary-construction buildings is which of the following?
Floor system with strong joists and a fire cut
A masonry pier at a distance from the wall but connected to it is best defined by what term?
Flying buttress
Self-releasing floors can be seen in most old interior ordinary construction buildings. The _________ sits on a steel shelf that protrudes from a column.
Girder
Which brick course is no longer necessary when a masonry wire truss is utilized?
Header course
Which of the following cannot be used as a wall column in a concrete block wall?
Hollow concrete blocks
Collapse indicators include all of the following except:
Increase in the dead load
An eccentric load may be counterbalanced by tying the wall to the _________.
Interior structure
Masonry walls are not designed to resist?
Lateral impact loads
A beam used to carry a wall above an opening is known as a(n)?
Lintel
Ordinary construction was used commonly in constructing buildings for residential dwelling units and retail sales structures. This method of construction often has been described or referred to as?
Main Street USA, buildings of six stories or less , taxpayers (all the above)
Concrete is inherently?
Noncombustible
A __________ is a square metal device used to transfer loads of columns on upper floors by passing the loads through intervening beams and girders to metal columns caps on the column below.
Pintie
If any part of an arch unit is out, the window or door frame becomes an undersigned structural __________.
Post and beam
A __________ wall is composed of an inner and outer wythe of coursed masonry.
Rubble masonry
What is the only way to connect wood beams to wood girders and receive the full benefit of the time it takes the wood to burn through?
Set the beams atop the girder
Which of the following is a typical indicator of ordinary construction building failure?
Smoke or water flowing through the walls Soft floors Walls out of plumb
Braced walls are a basic sign that a wall can be in distress. What are some signs that a wall may be braced?
Stairs on the outside wall Plates on the outside wall Channel sections on the outside wall
When a brick is laid so that the long side is visible, it is referred to as?
Stretcher course
Which item(s) will most likely fail first in ordinary construction buildings that have trussed wood beams?
Struts or rods
Reinforcing rods within reinforced-concrete lintels provide the __________ strength to the composite structure.
Tensile
What is the special material used to connect the exterior and interior wythes in ordinary construction hollow walls?
Terra cotta tile
One of the strengths of a Type IV (heavy-timber) building under fire conditions is which of the following?
The interior structural members are, as a minimum, strong wooden timbers
All of the following are major areas of concern in ordinary construction buildings except:
The non-bearing wood walls as a barrier to fire extension
Cornices, fake mansards, and overhangs are being installed to ordinary construction buildings to improve their appearance. Which of the following is a major hazard associated with these?
They are made of wood. OR They are poorly attached.
A party wall is __________ than two separate walls.
Thinner
When a column is offset, the girder on which it rests becomes a _________ beam.
Transfer
Beam-to-beam connections must be made whenever an opening is provided in a wooden floor. The joists that are cut to provide the opening are connected to a header beam, which in turn is connected to?
Trimmers
Girders in ordinary construction buildings may be made of wood or?
Unprotected Steel
Although a possibility, cold water on red hot iron may not be the chief cause of cast-iron column failure. What do the authors believe is the main cause of failure?
Unsafe connections
Early "fireproof" ordinary construction buildings had many hazards. Which of the following is a good example of these hazards?
Unsupported Marble Stairs
Masonry walls in ordinary construction may consist of all of the following except:
Wood studs
Cantilevered canopies and balconies are very common in ordinary construction buildings. Those supported on trusses or _________ are particularly dangerous.
Wooden I-beams
