Doors Part 2

Question 1

all glass door:

type and thickness

Answer 1

tempered glass
1/2” or 3/4”
(holes before tempering)

Question 2

all glass door typ size

Answer 2

36”x7’

Question 3

glass door hinge configuration:

minimum

Answer 3

corner fitting top and bottom to hod pivots

Question 4

glass door hinge configuration:

hinge fittings

Answer 4

clamp to glass

Question 5

glass door hinge configuration:

continuous bottom used if…

Answer 5

lock is req

Question 6

continuous top and bottom mounts are sometimes called

Answer 6

shoes

Question 7

revolving doors:

typ do not count as req

Answer 7

exit

Question 8

revolving doors:

crowd procausion

Answer 8

some collapse if crowd push

Question 9

hinges are also called

Answer 9

butts

Question 10

parts of hinge

Answer 10

two leaves,
knuckles,
pin

Question 11

half mortise:

Answer 11

surface at frame,

mortised to door edge.

Question 12

half surface

Answer 12

mortised in frame,

surface to door.

Question 13

hinges used at low-frequency, residential:

Answer 13

standard-weight,

plain-bearing hinges.

Question 14

hinges used at low-frequency, commercial:

Answer 14

standard-weight,

ball-bearing hinges.

Question 15

hinges used at high-frequency, office building entrances:

Answer 15

heavyweight, ball bearing hinges.

Question 16

hinges req’d at fire-rated assemblies/doors with closers

Answer 16

ball bearings

Question 17

hinge size is labeled

Answer 17

length x

width (inches @ open)

Question 18

hinge width rule of thumb:

Answer 18

2x(door thickness)

+ trim projection - ½”

Question 19

common hinge widths for

1-¾” door

Answer 19

4” or 4 ½” hinge

Question 20

of hinges is referred to in

Answer 20

pairs

2 hinges = 1 pair

Question 21

# hinges req'd:
door height ≤60”

Answer 21

1 pair (2 hinges)

Question 22

# hinges req'd:
door height 60”≤90"

Answer 22

1 ½ pairs (3 hinges)

Question 23

# hinges req'd:
door height 90≤120”

Answer 23

2 pairs (4 hinges)