Deck 18: Stairs

Question 1

An open riser stair should not have a gap between the treads greater than

A) 75mm
B) 85mm
C) 100mm
D) 125mm
E) 150mm

Answer 1

C

Question 2

The quarter-space landing is used to turn the stairs through an angle of

A) 45^o
B) 90^o
C) 135^o
D) 180^o
E) 225^o

Answer 2

B

Question 3

The going is the distance between

A) Consecutive risers
B) Consecutive treads
C) Consecutive nosings
D) The front and back of the tread
E) The front of the nosing and the back of the tread

Answer 3

C

Question 4

The pitch of a stair with 190mm risers and 230mm goings is

A) 34^o
B) 40^o
C) 44^o
D) 50^o
E) 56^o

Question 5

The width of a landing should be

A) Equal to the width of the flight
B) Greater than the width of the flight
C) Less than the width of the flight
D) Greater for half space landings than for quarter space landings
E) Greater for quarter space landings when tapered treads are used

Question 6

The inner string is supported by

A) The newel posts
B) The trimming joists
C) The rough brackets
D) The loadbearing wall
E) The apron lining

Question 7

The top newel post is supported by

A) The loadbearing wall
B) The ground floor
C) The rough brackets
D) The apron lining
E) The trimming joist

Question 8

The treads are joined to the risers by

A) Glued wedges
B) A tongued and grooved joint
C) A routed housing in the string
D) A triangular bracket
E) A Scotia mould to the nosing

Question 9

Bearers provide direct support to

A) The treads
B) The risers
C) The strings
D) The rough brackets
E) The apron lining

Question 10

Tapered treads are used when

A) The available space to provide a stair is limited
B) The outer string needs to be connected to the inner string
C) The newel post needs to be connected to the winder
D) The nosing is less than 16mm on an open riser stair
E) The headroom is less than 1.8m at the centre of the stair