Question 1

Suspended ceiling systems

Accepted Answer

A type of ceiling system where the ceiling is suspended below the structural slab or joists, commonly used in commercial and institutional buildings.

Question 2

Acoustical panels

Accepted Answer

Prefabricated modular panels designed to absorb sound and improve the acoustics within a space.

Question 3

Drywall compound

Accepted Answer

A pre-mixed or powder material used for taping, coating, and finishing drywall seams and fastener heads.

Question 4

Fire-rated assemblies

Accepted Answer

Wall, ceiling, and floor systems designed to resist the spread of fire and smoke for a specified period of time.

Question 5

Furring channels

Accepted Answer

Metal framing components used to create a level surface for attaching drywall or other finishing materials.

Question 6

Plumb bob

Accepted Answer

A weight, typically pointed at the bottom, used to establish a vertical line or reference point in interior systems construction.

Question 7

Control joints

Accepted Answer

Designed breaks in drywall or other interior systems to allow for movement and prevent cracking due to expansion and contraction.

Question 8

Resilient channel

Accepted Answer

A thin metal channel used to isolate drywall from the framing, reducing sound transmission through walls and ceilings.

Question 9

Shear wall

Accepted Answer

A structural wall designed to resist lateral forces, such as those caused by wind or seismic activity.

Question 10

Staggered stud wall

Accepted Answer

A wall construction technique in which studs are staggered on a common top and bottom plate, reducing sound transmission.

Question 11

Butt joint

Accepted Answer

A joint formed by the ends of two pieces of material being joined together, without any overlap.

Question 12

Corner bead

Accepted Answer

A metal or plastic strip used to reinforce and protect the outside corners of drywall installations.

Question 13

Level 5 finish

Accepted Answer

The highest quality drywall finish, involving the application of a skim coat of compound over the entire surface to create a smooth, uniform appearance.

Question 14

Metal lath

Accepted Answer

A sheet of metal mesh used as a base for the application of plaster or stucco.

Question 15

Expansion bolts

Accepted Answer

Fasteners used to attach materials to concrete or masonry, expanding as they are tightened to create a secure connection.

Question 16

T-bar grid

Accepted Answer

The framework of a suspended ceiling system, consisting of main tees and cross tees that support the ceiling panels.

Question 17

Back-blocking

Accepted Answer

The practice of adding support to the back of drywall joints to prevent cracks and improve overall strength.

Question 18

Partition wall

Accepted Answer

A non-load bearing wall that divides a space into separate rooms or areas.

Question 19

STC (Sound Transmission Class)

Accepted Answer

A rating system used to measure the effectiveness of a building assembly in reducing sound transmission.

Question 20

Gypsum board

Accepted Answer

A panel made from gypsum plaster sandwiched between two layers of paper, commonly known as drywall or wallboard.

Question 21

Joist hangers

Accepted Answer

Metal brackets used to support floor and ceiling joists, providing additional strength and stability.

Question 22

Rigid insulation

Accepted Answer

A type of insulation composed of foam or fibrous materials, designed to resist heat transfer and maintain a consistent temperature.

Question 23

Vapor barrier

Accepted Answer

A material used to prevent moisture from moving through walls, ceilings, and floors, protecting the building envelope.

Question 24

Sound clips

Accepted Answer

Small metal or rubber devices used to isolate framing members from drywall panels, reducing sound transmission.

Question 25

EIFS (Exterior Insulation and Finish System)

Accepted Answer

A multi-layered exterior wall system that includes insulation and a textured, water-resistant finish.

Question 26

Hat channel

Accepted Answer

A C-shaped metal framing member used to support and attach drywall or other finishing materials.

Question 27

Unistrut

Accepted Answer

A metal framing system used for the installation of mechanical, electrical, and plumbing components in commercial and industrial applications.

Question 28

Lath and plaster

Accepted Answer

A traditional interior wall and ceiling finish consisting of a base layer of lath (strips of wood or metal mesh) covered with one or

Question 29

Plumb line

Accepted Answer

A string with a weight at the end, used to establish a vertical reference line for construction projects.

Question 30

Deflection

Accepted Answer

The amount a structural element bends or deforms under load, which must be taken into account during the design and construction process.

Question 31

R-value

Accepted Answer

A measure of the thermal resistance of a material, indicating its ability to insulate and prevent heat transfer.

Question 32

Access panels

Accepted Answer

Removable panels installed in walls or ceilings to provide access to plumbing, electrical, or HVAC components for maintenance or repair.

Question 33

Load-bearing wall

Accepted Answer

A structural wall designed to support the weight of the building's floors, roof, and any additional loads.

Question 34

Bridging

Accepted Answer

Horizontal bracing installed between framing members, such as studs or joists, to provide lateral support and improve stability.

Question 35

UL (Underwriters Laboratories)

Accepted Answer

A safety certification organization that tests and rates building materials and products for fire resistance, electrical safety, and other performance criteria.

Question 36

Shaft wall

Accepted Answer

A fire-rated wall assembly used to enclose vertical shafts, such as elevator shafts or stairwells, in multi-story buildings.

Question 37

Soffit

Accepted Answer

The underside of a structural element, such as an arch, beam, or eave, which can be finished with drywall or other materials.

Question 38

U-channel

Accepted Answer

A metal framing component with a U-shaped profile, used to provide support and attachment points for drywall or other finishing materials.

Question 39

Jamb

Accepted Answer

The vertical side of a door or window opening, which may be finished with drywall or other materials.

Question 40

Soundproofing

Accepted Answer

The process of reducing or eliminating sound transmission through walls, ceilings, and floors, often achieved through a combination of materials and construction techniques.

Question 41

Thermal break

Accepted Answer

A material or component that interrupts the flow of heat through a building assembly, reducing heat loss or gain and improving energy efficiency.

Question 42

Furring strip

Accepted Answer

A thin strip of wood or metal used to create a level surface for attaching drywall or other finishing materials.

Question 43

Baseboard

Accepted Answer

A decorative molding installed along the base of a wall to cover the joint between the wall and floor.

Question 44

Drywall shims

Accepted Answer

Thin strips of material used to adjust the position or level of drywall panels during installation.

Question 45

Inside corner

Accepted Answer

The point where two walls meet at an interior angle, often finished with corner bead or paper-faced bead.

Question 46

Outside corner

Accepted Answer

The point where two walls meet at an exterior angle, often finished with corner bead or paper-faced bead.

Question 47

Firestop

Accepted Answer

A material or assembly used to seal openings and penetrations in walls, floors, and ceilings to prevent the spread of fire and smoke.

Question 48

Cold-formed steel framing

Accepted Answer

A method of constructing walls, ceilings, and other structures using steel studs, channels, and other components formed from thin sheet steel.

Question 49

Ceiling hanger wire

Accepted Answer

A galvanized steel wire used to support suspended ceiling systems by attaching to the structural components above.

Question 50

Drywall texture

Accepted Answer

A decorative finish applied to the surface of drywall panels, available in a variety of patterns and styles.

Question 51

Stucco

Accepted Answer

A type of plaster finish made from cement, sand, and water, typically applied to exterior surfaces.

Question 52

Gypsum plaster

Accepted Answer

A type of plaster made from gypsum, a naturally occurring mineral, used for interior wall and ceiling finishes.

Question 53

Veneer plaster

Accepted Answer

A thin layer of plaster applied over a gypsum board base, providing a smooth and durable finish.

Question 54

Green board

Accepted Answer

A type of moisture-resistant gypsum board used in areas with high humidity, such as bathrooms and kitchens.

Question 55

Z-furring

Accepted Answer

A type of metal furring used to create an airspace between the wall and drywall, providing insulation and reducing sound

Question 56

Transmission loss

Accepted Answer

A measure of how effectively a material or assembly reduces the passage of sound from one side to the other.

Question 57

Lead-lined drywall

Accepted Answer

A type of gypsum board with a layer of lead embedded within, used in medical and industrial facilities to shield against radiation.

Question 58

Perimeter relief

Accepted Answer

A gap left around the edge of a drywall installation to allow for expansion and contraction, typically covered by trim or molding.

Question 59

Blocking

Accepted Answer

The practice of installing short pieces of wood or metal between framing members to provide additional support or attachment points for interior finishes.

Question 60

Scissor truss

Accepted Answer

A type of roof truss with sloping bottom chords that create a vaulted ceiling on the interior.

Question 61

Fire-resistant drywall

Accepted Answer

A type of gypsum board with a core of fire-resistant materials, used in fire-rated assemblies to slow the spread of flames and smoke.

Question 62

Water-resistant backing board

Accepted Answer

A type of gypsum board designed to resist moisture and mold, typically used as a substrate for tile in wet areas such as showers and tub surrounds.

Question 63

Steel stud crimper

Accepted Answer

A specialized tool used to crimp the ends of steel studs and tracks, creating a secure connection without the need for fasteners.

Question 64

Drywall saw

Accepted Answer

A hand tool with a sharp, serrated blade designed to cut through gypsum board and other soft materials.

Red Seal Exam Lather: Advanced Flash Card Set for Interior Systems Mechanics