Building Construction Final (ch. 8-12)

Concrete floors require what type of joints?

Expansion Joints

What construction method describes a building in which all of the concrete is properly bonded together and acts as one?

Monolithic construction

A space within a beam where there is neither tension nor compression is know as the:

Neutral plane

Which of the following statements is NOT an accurate description of mill construction? A. exterior bearing walls are solid masonry B. Non-load-bearing walls are made of slow burning heavy timber C. Columns and beams contain cast iron connectors D. None of the above. There should be no openings in the fire walls

Non-load-bearing walls are made of slow burning heavy timber

Concrete is inherently:

Noncombustible

In excavation bracing, what material is used to brace the entire structure?

Rakers

Hanging tendons can act as heat collector and will fail at how many degrees?

800 degrees

Steel tendons and elevator cables will fail at about:

800 degrees

Heated to 1000 degrees, a steel member will expand _____ inches over 100 feet of length.

9.5"

Tests on metal deck roofs have shown that it only takes 800 degrees for ______ minutes for heat impinging on the surface of steel to start self-sustaining roof fire.

5 minutes

Masonry walls in ordinary construction may be made up of: A. One material B. Different materials used in different areas C. Different materials that are combined to form composite construction D. all of the above

All of the above

One of the major problems with the modification procedures in heavy timber construction is that: A. They may create void spaces B. They create unsprinklered areas C. To drain water from the floor D. To allow ventilation for the fire floor

All of the above

Which of the following is a typical indicator of ordinary construction building failure? A. Smoke flowing through the walls B. Water flowing through the walls C. soft floors D. Walls out of plumb

All of the above

A fee-standing wall not secured at the top, best describes which type of wall?

Cantilevered

Protection of steel buildings is often done with sprinkler systems. It is important to know whether that system is adequate for ____ load of the building.

Fire

Concrete, like any other noncombustible material, can be destroyed by fire given sufficient fire load and:

Fire duration

What do you need to do if you use nonpotable water in your pump during fire suppression operations?

Flush the pump out thoroughly with fresh water.

Steel encasement can be accomplished by all of the following EXCEPT: Concrete, Plaster, Brick, of Insulation

Insulation

A short column with a large cross section in proportion to its length is known as:

Pier

Which of the following is NOT one of the three distinct areas that fire departments face regarding concrete construction? A Collapse during construction with no fire B. Spalling of concrete during curing. C. Fire during construction D. Fire in completed, occupied building

Spalling of concrete during curing.

What type of girder is used to tie wall columns together in a framed building?

Spandrel girder

Which area in a heavy timber building may be an area of refuge during a collapse?

Stair Shafts

A ______ is a metal connection that allows for movement of floors.

Steel expansion joint

What is the purpose of scuppers in heavy timber construction?

To drain water from the floor

What is a reason that a heavy timber building is a conflagration breeder?

Tremendous amounts of heat transfer from convection currents, which can ignite exposures hundreds of feet away.

Masonry buildings with spans greater than _____ feet must have interior bearing walls.

25

Inert materials that are added to Portland cement and water to form concrete are known as:

Aggregates

Which of the following is known as a "calculated risk" for buildings with inadequate fire protection? A. Financial B. Engineering C. Forget it D. Economic

All of the above

Why do testing laboratories not test heavy timber members? A. Structural stability is theoretically assured B. because of their inherent risk of fire resistance C. Because they char on the surface only D. All of the above

All of the above

In simpler days, ordinary construction was known as:

Brick and wood joisted construction

Which of the following is NOT a problem that arises during the rehabilitation or demolition of a heavy timber building? A. Buildings are being made historic land marks B. Buildings are abandoned C. Buildings are converted to multiple occupancies D. Buildings are being renovated into office occupancies

Buildings are being made historic landmarks

The successive layers on a metal deck roof are known as:

Built up roofs

A cast in place, monolithic concrete building is:

Built with a rigid frame and resistant to collapse.

_____ have more structural support than do standard I-Beams.

Wide flange beams

Which of the following is not an aggregate used in concrete? Gravel, Crushed stone, Cinders or Wood chips

Wood chips

Masonry walls in ordinary construction may consist of all of the following EXCEPT: A. Concrete block B. Terra cotta tile C. Wood studs D. Precast concrete

Wood studs

Rigid frames can provide clear spans of about how many feet?

100

At about _____ steel will begin to elongate.

1000 degrees

Many noncombustible buildings are one to three stories in height. What is the maximum height of a noncombustible building?

12 stories

At what temperature will steel members begin to fail, causing imminent collapse of the building?

1300 degrees

Double T's are floor slab and beam combinations that consist of ______ beams.

2

Braced walls are a basic sign that a wall can be in distress. What are some signs that a wall may be braced? A. stars on the outside wall B. Plates on the outside wall C. Channel sections on the outside wall D. Any of the above

Any of the above

There are many ways to stabilize a wall in ordinary construction buildings. Which of the following is one of these? A. Buttresses or masses of masonry outside the wall B. Pilasters or columns built inside the wall C. Wall columns, built within the wall D. Any of the above

Any of the above

In older masonry buildings, the interior walls, if not made of masonry, are made of:

Balloon frame construction

Plates that are less than 6 inches in width and may be square or round are known as:

Bars

Roofs in mill construction buildings can be supported by:

Beams, timber arches and timber trusses

In the typical downtown ordinary construction building, the side walls are the _____ walls, whereas the front and back walls are_____

Bearing, non-bearing

Large hollow columns built from steel plates are known as:

Box columns

The process for casting or pouring concrete without interruption from start to finish is known as continuous casting. This avoids the problem of joining new construction concrete with concrete already pored. If such a joint is not properly made, _____ joints, which are planes of weakness, result.

Cold

Tensioned steel rods place concrete into

Compression

The arch of a steel bridge is often a truss. The arch is a compression structure. In this unique case, the top and bottom chords are both under:

Compression

Steel's ______ strength is equal to its _____ strength.

Compressive, tensile

The most common walls for unprotected steel framed buildings are made of:

Concrete block or composite concrete block and brick

Steel is about good thermal conductor. Heat can be readily transmitted through what type of heat transfer?

Conduction

Although it is important to know that a heavy timber building may burn slowly, it is more important to find out how the structure is:

Connected

Precast concrete buildings under construction are unstable until all ______ are completed.

Connections

Many concrete floors are designed as a _____ beam. Cantilevered, Fixed Continuous or Slipform

Continuous

The process for pouring concrete without interruption from start to finish is known as:

Continuous casting.

When fighting a fire in a photovoltaic (PV) system, the first thing a fire fighter should do is:

De-energize the system at the control panels

Water storage tank on the roof of a building containing reclamation water are considered which type of load?

Dead load

Collapse indicators include all of the following, EXCEPT:

Decrease in the dead load

Green building rating certifications _____ the fire code(s).

Do not address

Wastewater from industrial processes, laundries, and other resources is referred to as:

Gray water

Which of the following statements is correct? A. Green buildings are safer for firefighters than normal buildings B. Ventilation operations are easier in a green building C. Green construction should not be equated with increased fire fighter safety. D. Building materials used in green construction are less of a fire hazard than those used in normal construction

Green construction should not be equated with increased fire fighter safety.

Floors in mill construction buildings are made of ______ planks

Grooved, splined and laminated

Which brick course is no longer necessary when a masonry wire truss is utilized?

Header course

Which of the following is a major hazard to fire fighters operating within a structure that has a green roof? A. Visibility is limited B. Added thickness to the roof makes it difficult to ventilate C. Increased insulation from the roof will make the fire hotter D. Increased weight of the roof could make a roof collapse faster

Increased weight of the roof could make a roof collapse faster

Elongating steel exerts what type of force against the structure that restrains it?

Lateral

Diagonal braces that are used to resist certain loads on the formwork are known as:

Lateral bracing

Falsework is composed of:

Lateral bracing, formwork and shores

What are masonry walls NOT designed to resist?

Lateral impact loads

When concrete floors are cast onto corrugated steel, the steel is a:

Left-in-place form.

A beam used to carry a wall above an opening is known as:

Lintel

The slow-burning characteristic of heavy timber construction is an advantage only as long as the fire department:

Maintains interior offensive operations

Rigid frames are used to achieve wide clear spans. In the rigid frame, the column is ______ at the base and tapers to its _____ point at the top where it meets the roof girder.

Narrow, widest

All of the following are examples of eco-friendly building material EXCEPT: A. Polymers B. Bamboo C. Adobe D. Straw Bales

Polymers

Perhaps the greatest threat of a solar panel system to fire fighters during a fire is:

Possibility of electrical shock

What are the two methods used for pre-stressing?

Pre-tensioning and post tensioning.

Building codes often classify steel buildings into one of two categories:

Protected and unprotected

Beams, usually channels, set at right angles to trusses or roof rafters to provide support for lightweight roofing are known as:

Purlins

All of the following are objectives of the Leadership in Energy and Environmental Design (LEED) program, EXCEPT: A. Reduce waste B. Be healthier and safer for occupants C. Qualify for tax rebates D. reduce fire flow requirements for sprinkler systems

Reduce fire flow requirements for sprinkler systems

To maintain the integrity of the building, the fire wall openings must be protected buy:

Self-closing or automatically closing fire doors

Plain concrete is strong in compression, is weak in _____, and has no tensile strength.

Shear

Which of the following is used to support the formwork?

Shores

Bricks laid so that their long side is visible are referred to as:

Stretcher course

What are structural insulated panels used for in green construction?

Stud-less walls

The term "green" construction is also known as:

Sustainable construction

Concrete is weak in _____ strength and has poor shear resistance.

Tensile

Steel provides the _____ strength that concrete lacks.

Tensile

What is the major difference between noncombustible construction and fire resistive construction?

The level of fire resistance

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 features?

They create a fall hazard and they are poorly attached.

A party wall is _____ than two separate walls.

Thinner