IDPX Practice Test 1 Flashcards
(155 cards)
In a small lecture hall, it would be best to avoid:
parallel walls
a vaulted ceiling
carpet
a sound amplification system
a vaulted ceiling
A vaulted ceiling would focus sound reflections into one concentrated area and produce annoying echoes or quiet spots in the hall.
All of the following are true about pivot door hinges EXCEPT?
makes it easy to seal the door against sound or light transmission
pivots are often used for glass doors
intermediate pivots are used to prevent warping and to provide additional support for heavy doors
used where a frameless door makes the use of hinges impossible
makes it easy to seal the door against sound or light transmission
Because of the way they operate center pivots cannot be used with a doorstop on the same side of the door on both jambs. This makes it
difficult to seal the door against sound or light transmission on the hinge and strike sides.
Which of the following is the easiest and least expensive type of construction to enclose a 1-hour rated corridor?
5/8 (16 mm) Type X-gypsum wallboard on 3 5/8 in (92 mm) metal studs
two layers of 1/2 in (13 mm) Type X gypsum wall board on 3” metal studs
two layers of 1/2 in (13 mm) Type X gypsum wallboard on 2 1/2 in (64 mm) metal studs
3/4” (19 mm) gypsum wallboard on 3 5/8 in (92 mm) metal studs
5/8 (16 mm) Type X-gypsum wallboard on 3 5/8 in (92 mm) metal studs
Although there are several ways to achieve a 1-hour rating, a single layer of 5/8” (16 mm)
Type X wallboard is the easiest and least expensive.
Which is NOT true about noise reduction between two rooms?
An increase in wall area separating the two rooms is detrimental.
Noise reduction increases with an increase in the transmission loss of the wall separating the two rooms.
The stiffness of the wall can affect noise reduction.
To improve noise reduction, the designer should place absorptive materials on both sides of the wall.
To improve noise reduction, the designer should place absorptive materials on both sides of the wall.
Although placing absorptive materials on both sides of the wall would not hurt and would decrease the noise level in the “noisier” room,
the three most important variables are the wall’s stiffness, the transmission loss, and the common area between rooms.
Which of the following hardware holds a door in place, with no provisions for locking?
closer
latchset
dummy set
astragal
latchset
Locksets are devices to operate a door, hold it in the closed position, and lock it. A latchset only holds the door in place, with no provisions
for locking.
Which label is required by code for a 20-minute-rated wooden door?
UL
CPSC
NFPA
IBC
UL
UL 10B Standard for Fire Tests of Door Assemblies 1.1 These methods of fire tests are applicable to door assemblies of various materials
and types of construction for use in wall openings to retard the passage of fire.
In general, fire door assemblies are rated at what fraction of the rating of the surrounding wall?
one-fourth
the same
three-fourths
one and one-half
three-fourths
In general, door assemblies are rated at three-fourths of the rating of the surrounding wall.
For example, a 45 minute door is used in a 1-hour rated wall, a 3-hour fire door is used in a 4-hour rated wall.
Which of the following partition materials is least specified by interior designers?
glass reinforced gypsum wall board
gypsum wallboard
green board
masonry
masonry
Masonry is a general term that includes brick, concrete block, glass block, structural clay tile, terra-cotta and gypsum block.
In most cases masonry materials are part of the architectural design of a building and are part of the architect’s work. Occasionally,
however, the interior designer may need to modify a non loadbearing wall of masonry.
All of the following are true about suspended acoustical ceilings EXCEPT?
prevent sound transmission to an appreciable extent
consists of thin panels of wood fiber, mineral fiber or glass fiber set in a support grid of metal framing
offer easy access to electrical and mechanical components in the plenum
is perforated or fissured in various ways to absorb sound
prevent sound transmission to an appreciable extent
Suspended acoustical ceilings do not prevent sound transmission to any appreciable extent.
A lintel is another name for a?
girder
cripple stud
transom
header
header
When openings for doors and small windows are required, they are framed at the top with lintels (also called headers).
Challenges with acoustic separation are most often caused by?
partition material
ceiling material
ceiling finish
mechanical and electrical services
mechanical and electrical services
Mechanical and electrical services often pose problems with maintaining acoustic separation, especially in offices spaces where ducts, convectors and piping run continuously along an exterior wall while partitions intersect the exterior wall at regular intervals.
Level 4 gypsum wallboard finish is MOST suitable for which of the following applications?
Areas where gloss or semi-gloss paint finishes are to be applied as a final finish
Areas where eggshell finish paints are to be applied as a final finish where economy is of concern
Areas where heavy-grade textured wallcoverings are to be applied as a final finish
Behind porcelain wall tile in wet areas with plumbing
Areas where eggshell finish paints are to be applied as a final finish where economy is of concern
Level 4 is the level most commonly used for areas receiving light textures or wallcoverings, or where economy is of a concern for painted walls.
During the permitting process, who submits the drawings and specifications to the building department or AHJ?
licensed contractor
interior designer
owner
architect
licensed contractor
The formal permitting process begins after the interior designer has completed the drawings and specifications. Those are given to the contractor, who has been selected through a bidding process or through negotiations.
Linear pendant fixtures in an open office with a standard ceiling height are most appropriately mounted at:
84” AFF
130” AFF
60”AFF
72” AFF
84” AFF
For a suspended fixture to provide indirect light, it must be mounted low enough below the ceiling to allow for the light to reflect back off the ceiling surface, but not too low that is does not comply with code, or a minimum 12” (305 mm) for two‐lamp units.
How many stairs are required to reach the second floor, when the ceiling height of the first floor is 10 feet. Allow 6″ space between floors.
17
16
20
18
18
Step 1. Convert feet to inches. Floor 1 is 120 inches, plus 6’’ between floors. 10x12=120+6=126”
Step 2. Divide by 7”, height of a typical riser. 126/7=18
What is the most important criterion for lighting a fabric showroom?
CRI
visual comfort probability
coefficient of utilization
color temperature
CRI
In a fabric showroom, accurate color rendition is an important concern. Although the color temperature rating of a lamp gives a general indication of the lamp’s “whiteness,” the color rendering index (CRI) is a more accurate indication of how appropriate a lamp is for a
specific application.
The principal consideration in acoustic control in large spaces is the sound absorptive quality of the:
soft furnishings
floor
roof
ceiling
ceiling
Noise reduction within a space: In larger rooms, ceiling treatment is most effective, while in smaller rooms, wall treatment is more effective.
Which of the following devices would be used to prevent the spread of smoke during a fire?
smoke damper
fire suppression detector
ionization detector
fire damper
fire damper
Fire Dampers are used to PREVENT the spread of fire AND smoke. Smoke Dampers are used to RESIST the passage of smoke and air.
What would be the easiest way to increase the IIC value of a conference room floor?
providing a resiliently suspended ceiling below
providing a thick flooring at least 1/8” thick
providing sound-absorbing material (insulation) in the air space between the floor and the finished ceiling below
carpeting the floor
carpeting the floor
The IIC value of a floor can most easily be increased by adding carpet
What part of a door is the “Stile”
Vertical Components
Top Horizontal Component
Bottom Horizontal Component
Middle Horizontal Component
Vertical Components
Stiles are the vertical components in frame & panel door construction
What type of structural system cannot be penetrated after construction placement?
Precast concrete
Post and Beam
Open web steel joist system
Post-tensioned concrete
Post-tensioned concrete
Post-tensioned concrete consists of steel cables that at tightened as the concrete hardens to reinforce strength. Once tightened the cables cannot be cut or manipulated without affecting the material strength and damaging the wall
Which partition system consists of individual components that can be quickly assembled, disassembled, and reused with nearly total salvageability?
modular partitions
demountable partitions
salvageable partitions
systems partitions
demountable partitions
Demountable partitions consist of a system of individual components that can be quickly assembled, disassembled, and reused with nearly total salvageability.
Which of the following typically must be located directly on a plumbing trench?
toilet
mop sink
all of these
shower drain
all of these
Typically, all items with a floor drain go on the trench in ground floor slab on grade construction
This classification of a roof assembly of a building depends on the costs/maintenance, appearance, energy conservation, ventilation of the attic/roof joist space, and weight of the roof parts (including imposed live loads of snow, etc.).
parapet
low-slope or steep-slope
flat or bent
low-slope or curved
low-slope or steep-slope
The roof assembly is classified as a low-slope or steep-slope system, depending on the costs/maintenance, appearance, energy conservation, ventilation of the attic/roof joist space, and weight of the roof parts (including imposed live loads of snow, etc.).