The maximum permissible deflection of a timber beam supporting a roof, is
L/100
L/150
L/260
L/360
Correct Answer :
D. L/360
Related Questions
In which of the following directions, the strength of timber is maximum?
Parallel to grains
45° to grains
Perpendicular to grains
Same in all directions
The triangular portion between any two adjacent arches and the tangent to their crowns, is
Haunch
Spandril
Soffit
Rise
Weep holes are provided in retaining and breast walls
To drain off the water from the filling
To ventilate the stone masonry
To add architectural beauty
To increase compaction of the earth retained
If height of the first storey of a building is 3.2 m and riser is 13 cm, the number of treads required, is
12
18
24
25
The vertical member running through middle of a shutter frame, is
Style
Reveal
Mullion
Post
Nogging of a common wooden partition is
Upper horizontal wooden member
Lower horizontal wooden member
Intermediate horizontal wooden member
Vertical wooden member
The process of filling hollow spaces of walls before plastering, is known
Hacking
Dubbing out
Blistering
Peeling
The type of roof suitable in plains where rainfall is meagre and temperature is high is
Pitched and sloping roof
Flat roof
Shell roof
None of the above
An arch constructed with finely dressed stones, is known
Ashlar arch
Rubble arch
Gauged arch
Axed arch
Mansard roof is a roof which slopes in
Two directions without break in the slope on each side
Two directions with break in the slope on each side
Four directions without break in the slope on each side
Four directions with break in the slope on each side
Pick up the correct statement from the following:
A combined footing is so proportioned that centre of gravity of supporting area coincides with centre of gravity of two column loads
A combined footing may be either rectangular or trapezoidal in shape
Trapezoidal shaped footings may be provided under any loading
All the above
Safe bearing capacity of black cotton soil varies from
2 to 3 t/m2
5 to 7.5 t/m2
8 to 10 t/m2
10 to 12 t/m2
A wooden block hinged on post outside a door, is known
Cleat
Stop
Horn
None of these
The pile which supports the load partly by friction and partly by resting on hard stratum, is called
Friction pile
Bearing pile
Friction bearing pile
Rough pile
Which one of the following rocks is used for monumental buildings?
Granite
Marble
Sand stone
Slate
The inner section of a cavity wall, is generally known as
Buttress
Leaf wall
Pilaster
Pillar
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
A pointed arch which forms isosceles or equilateral triangle, is generally known as
Three centred arch
Two centred arch
Lancet arch
Bull's eye arch
The depth of excavation of foundations, is generally measured with a
Ranging rod
Steel tape
Levelling staff
Boning rod
In which of the following pairs both trees yield soft wood?
Deodar and Shishum
Chir and sal
Sal and teak
Chir and deodar
The wedge shaped bricks forming an arch ring, are called
Soffits
Voussoirs
Haunches
Spandrils
The foundation which consists of a thick reinforced cement slab covering whole area to support heavy concentrated structural loads, is known as
Combined footing
Strap footing
Raft footing
None of these
Gravels
Are cohesionless aggregates
Vary in size between 2 to 20 mm
Never swell when they come into contact with water
All the above
In case of foundations on black cotton soils, the most suitable method to increase the bearing capacity of soils is to
Increase the depth of foundation
Drain the soil
Compact the soil
Replace the poor soil
In grillage foundations a minimum 15 cm cover is provided on
Upper flange of top tier
Lower beam of lower tier
Ends of external beams
None to these
The form work from the sides of beams can be removed only after
1 day
4 days
7 days
14 days
Pick up the correct statement from the following:
Isolated footing is provided under column to transfer the load safely to soil bed
Column footings may have steps or projections in the concrete base
Heavily loaded column base must be provided steel reinforcement in both directions
All the above
The minimum depth of foundation in clayey soils is
0.5 m
0.7 m
0.9 m
1.2 m
The lower edge of the pitched roof, from where the rain water of the roof surface drops down, is known as
Hip
Gable
Ridge
Eaves
Cavity wall is generally provided for
Heat insulation
Sound insulation
Prevention of dampness
All the above