glass

Question 1

is used as rigid, vapor proof thermal
insulation.

Answer 1

Formed or Cellular glass

Question 2

are used in textiles and for material reinforcement.

Answer 2

FIBER GLASS

Question 3

fabricated by drawing the molten glass from a
furnace (drawn glass), or by forming a cylinder, dividing it
lengthwise, and flattening it (cylinder glass).

Answer 3

SHEET GLASS

Question 4

is formed by rolling molten glass into a plate that
is subsequently ground and polished after cooling.

Answer 4

PLATE GLASS

Question 5

is manufactured by pouring molten glass onto a
surface of molten tin and allowing it to cool slowly.

is the successor to plate glass and accounts for the majority of flat-glass production.

Answer 5

FLOAT GLASS

Question 6

is cooled slowly to relieve internal stresses.

Answer 6

ANNEALED GLASS

Question 7

is annealed glass that is partially
tempered by a process of reheating and sudden cooling.
Heat-strengthened glass has about twice the strength of
annealed glass of the same thickness.

Answer 7

HEAT - STRENGTHENED GLASS

Question 8

Formation of glass when it’s broken and and fixed

Answer 8

ANNEALED
LAMINATED
HEAT STRENGTHENED
HEAT SOAKED
TEMPERED

Question 9

is annealed glass that is reheated to just below the softening point and then rapidly cooled to induce
compressive stresses

Answer 9

TEMPERED GLASS

Question 10

consists of two or more plies of flat glass bonded under heat and pressure to interlayers of
polyvinyl butyral resin that retains the fragments if the glass is broken

Answer 10

LAMINATED OR SAFETY GLASS

Question 11

is flat or patterned glass having a square or diamond wire mesh embedded within it to prevent shattering in the event of breakage or excessive heat.

Answer 11

WIRED GLASS

Question 12

has a linear or geometric surface pattern formed in the rolling process to obscure vision or to diffuse
light.

Answer 12

PATTERNED GLASS

Question 13

has one or both sides acid-etched or sandblasted to obscure vision. Either process weakens the glass and makes it difficult to clean.

Answer 13

OBSCURE GLASS

Question 14

is an opaque glass for concealing the
structural elements in curtain wall construction, produced by
fusing a ceramic frit to the interior surface of tempered or
heat-strengthened glass

Answer 14

SPANDREL GLASS

Question 15

a glass unit consisting of two or more sheets of glass separated by a hermetically sealed air space to provide thermal insulation and restrict condensation; glass edge units have a 3/16” (5) air space; metal edge units have a ¼” or ½” (6 or 13) air space.

Answer 15

INSULATING GLASS

Question 16

has a chemical admixture
to absorb a portion of the radiant heat

Answer 16

TINTED GLASS OR HEAT ABSORBING GLASS

Question 17

has a thin, translucent metallic
coating to reflect a portion of the light and radiant
heat that strike it.

Answer 17

REFLECTIVE GLASS

Question 18

transmits visible light while
selectively reflecting the longer
wavelengths of radiant heat,

Answer 18

LOW - EMISSIVITY GLASS

Question 19

are straight, slender pieces of metal having one end pointed and the other enlarged and flattened for hammering into wood or other building materials as a fastener.

Answer 19

NAILS

Question 20

are metal fasteners having tapered, helically threaded
shanks and slotted heads, designed to be driven into wood

Answer 20

SCREWS

Question 21

are generally used for hardwoods while

Answer 21

FINE THREADED SCREWS

Question 22

ones are used for softwoods.

Answer 22

COARSE THREADED SCREWS

Question 23

are threaded metal pins or rods, usually having a head at
one end, designed to be inserted through holes in assembled parts and secured by a mating nut

Answer 23

BOLTS

Question 24

are used where the head may be inaccessible to the placement of a nut or where an exceptionally long bolt would be needed to penetrate a joint fully

Answer 24

CARRIAGE BOLTS

Question 25

are specially constructed to prevent a nut from shaking loose

Answer 25

LOCK WASHERS

Question 26

have small projections that are progressively flattened as a bolt is tightened, the gap between the head or nut and the washer indicating the tension in the bolt

Answer 26

LOAD INDICATING WASHERS

Question 27

are anchor bolts having a split casing that expands mechanically to engage the sides of a hole drilled in masonry or concrete.

Answer 27

EXPANSION BOLTS

Question 28

is a trademark for a brand of expansion bolt having a split, sleevelike sheath threaded

Answer 28

MOLLY

Question 29

are lead or plastic sleeves inserted into a predrilled hole and expanded by driving a bolt or screw into it

Answer 29

EXPANSION SHIELDS

Question 30

are used to fasten materials to plaster, gypsum board and other thin wall materials

Answer 30

TOGGLE BOLTS

Question 31

are metal pins that are used for permanently joining two or more structural steel

Answer 31

RIVETS

Question 32

used when a joint is accessible from one side only, have an explosive-filled shank that is detonated by striking the head with a hammer to expand the shank on the far side of the hole.

Answer 32

EXPLOSIVE RIVETS

Question 33

are used to secure the surfaces of two materials together.

Answer 33

ADHESIVE

Question 34

are primarily for indoor use where temperature and humidity do not vary greatly; they may be weakened by exposure to heat or moisture.

Answer 34

FISH GLUES

Question 35

sets quickly, does not stain and is slightly resilient.

Answer 35

POLYVINYL GLUE

Question 36

are extremely strong, waterproof and may be used to secure both porous and nonporous materials; they may dissolve some plastics.

Answer 36

EPOXY RESINS

Question 37

resins are strong, waterproof and durable for outdoor use, but they are flammable and their dark color may show through paint.

Answer 37

RESORCIN

Question 38

forms a bond on contact and therefore does not require clamping.

Answer 38

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