For effective drainage, the finished surface of flat roof should have a minimum slope of
1 in 20
1 to 50
1 in 10
1 in 5
Correct Answer :
A. 1 in 20
Related Questions
Pick up the correct statement from the following:
Louvered door is generally provided in bath rooms
Flush door is generally provided in dining room
Revolving door is generally provided in cinema halls
Sliding door is generally provided in show rooms
The sill of a common wooden partition is
Vertical wooden member on either end
Lower horizontal wooden member
Upper horizontal wooden member
Intermediate horizontal wooden member
Engineering news formula for obtaining safe bearing capacity of pile for drop hammer, is,
Q = Wh/6 (S + 2.5)
Q = Wh/2.5 (S + 6)
Q = (W × 6)/h (S + 2.5)
Q = (W × 2.5)/6 (S + h)
The term string is used for
The underside of a stair
Outer projecting edge of a tread
A sloping member which supports the steps in a stair
A vertical member between two treads
While designing a stair, the product of rise and going is approximately kept equal to
350
420
450
500
Best type of piles for soft soil having little resistance to the flow of concrete, is
Simplex pile
Vibro pile
Raymond pile
Franki pile
The minimum depth of foundation in clayey soils is
0.5 m
0.7 m
0.9 m
1.2 m
Pick up the consideration to the taken while designing a hospital from the following:
The operation theatre unit to be detached as it requires sterilized zone but near the ward for the patients and doctor
The mortuary should be detached from the main circulation with a post-mortem room
Casualty unit should be provided a separate entrance
All the above
The foundations are placed below ground level, to increase
Strength
Workability
Stability of structure
All the above
A projecting piece usually provided to support a truss, is
Cornice
Coping
Frieze
Lintel
Number of vertical joints in a stretcher course is x times the number of joints in the header course, where x is equal to
1/2
1
2
1/4
The arrangement made to support an unsafe structure temporarily, is known as
Shoring
Scaffolding
Underpinning
Jacking
In case of foundations on sandy soil, maximum permissible differential settlement, is usually limited to
15 mm
25 mm
35 mm
45 mm
Gravels
Are cohesionless aggregates
Vary in size between 2 to 20 mm
Never swell when they come into contact with water
All the above
The 19 cm × 9 cm side of a brick as seen in the wall face, is generally known as
Stretcher
Face
Front
Header
The pile which supports the load due to friction between pile face and surrounding soil, is generally known as
Bearing pile
Friction pile
Sheet pile
Battered pile
In flat roof of reinforced cement concrete, the recommended angle of slope, is
Zero
A few degrees
10°
200°
The construction joints in buildings are provided after
10 m
15 m
20 m
40 m
Depth or height of the arch is the
Perpendicular distance between intrados and extrados
Vertical distance between springing line and intrados
Perpendicular distance between springing line and extrados
None of the above
For a wall carrying heavy load on low bearing capacity soil,
Lean concrete bed is provided
Thick concrete bed is provided
Reinforced concrete bed is provided
Both (a) and (c) of the above
The form work from the underside of slabs, can be removed only after
1 day
4 days
7 days
14 days
The inclined support at the ends of treads and rises of a stair, is known as
Baluster
Header
String
Beam
Cavity wall is generally provided for
Heat insulation
Sound insulation
Prevention of dampness
All the above
The process of keeping concrete moist for a certain period after its finishing, is known as
Finishing of concrete
Curing of concrete
Placing of concrete
Compaction of concrete
The type of bond in a brick masonry containing alternate courses of stretchers and headers, is called
Flemish bond
English bond
Stretcher bond
Header bond
The stone masonry of finely dressed stones laid in cement or lime, is
Random rubble masonry
Coursed rubble masonry
Dry rubble masonry
Ashlar masonry
If the depth of an excavation is 20 metres, number of single stage well points to be installed at various levels, is
5
4
3
2
Bearing capacity of soils cannot be improved by
Draining sub-soil water
Ramming crushed stone in soil
Driving sand piles
Watering surface of soil
The opening provided in sloping roof with its top parallel to the roof surface, is called
Dormer window
Sky light window
Lantern window
Louvered window
Auger boring
Is the most primitive method for making a hole in the ground
Is generally employed in cohesive and other self soils above water table
Is most economical upto a depth of 5 metres
All the above