The floor is rubbed with oxalic acid, for making its surface
Free from voids
Glossy
Durable
Uniform
Correct Answer :
B. Glossy
Related Questions
A stair should not have pitch more than
25°
30°
40°
50°
The horizontal timber piece provided at the apex of a roof truss which supports the common rafter is called
Ridge board
Hip rafter
Eaves board
Valley rafter
The raft slab is projected beyond the outer walls of the structure by
5 to 10 cm
15 to 20 cm
25 to 30 cm
30 to 45 cm
The width of the hollow space between two walls of a cavity wall should not exceed
5 cm
7.5 cm
10 cm
15 cm
In which of the following pairs both trees yield soft wood?
Deodar and Shishum
Chir and sal
Sal and teak
Chir and deodar
Depth of lean concrete bed placed at the bottom of a wall footing, is kept
10 cm
15 cm
Equal to its projection beyond wall base
Less than its projection beyond wall base
The disease of dry rot in timber is caused by
Lack of ventilation
Alternate wet and dry conditions
Complete submergence in water
None of the above
Which one of the following factors is considered for the orientation of buildings?
The direction of the prevailing winds in the area
The exposure of the walls and roof of the buildings to the rays of sun
The extent up to which the sunrays penetrate with the verandah
All the above
The arrangement made to support an unsafe structure temporarily, is known as
Shoring
Scaffolding
Underpinning
Jacking
The stepped structure provided for lateral support of a structure, is
Retaining wall
Breast wall
Buttress
Parapet wall
Pick up the correct statements from the following:
Cracks appear on the plastered surface in the form of hair cracks
In brick work, the efflorescence is removed by applying a solution of zinc sulphate and water
Excessive thermal variations in the backing or plaster causes the plaster to fall
All the above
The type of bond in which every course contains both headers and stretchers, is called
English bond
Flemish bond
Russian band
Mixed bond
The type of arch used for high class buildings where appearance is of prime importance, is known as
Ashlar arch
Rubble arch
Gauged brick arch
Axed brick arch
Rotary drilling is the fastest method in case of
Rocky soils
Clay soils
Sandy soil
All of these
The line of intersection of two surfaces of a sloping roof forming an internal angle less than 180°, is known as
Ridge
Hip
Valley
None of these
The position of a brick when laid on its side 9 cm × 9 cm with its frog in the vertical plane, is called
Brick on edge
Brick on end
Brick on bed
Brick held vertically
The angle between skew back of a flat arch and the horizontal, is kept approximately equal to
0°
30°
60°
90°
The black cotton soil
Undergoes volumetric changes
Swells excessively when wet
Shrinks excessively when dry
All the above
The type of stone masonry in which stones of same height are laid in layers, is called
Random rubble masonry
Course rubble masonry
Uncoursed rubble masonry
Ashlar masonry
A cut in frame of a door to receive the shutter, is called
Louver
Stop
Horn
Rebate
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 brick laid with its breadth parallel to the face of a wall, is known as
Header
Stretcher
Closer
None of these
The mortar in which both cement and lime are used as binding materials, is called
Cement mortar
Lime mortar
Fire resistant mortar
Gauged mortar
In verandah floors outward slope is
1 in 40
1 in 50
1 in 60
1 in 70
Pick up the correct statement from the following:
Inclined borings are made for taking samples under existing structures
Inclined borings are occasionally used instead of vertical holes
The spacing of inclined borings is kept such that one bore hole is vertically above the bottom of an adjacent bore hole
All the above
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
In a colar beam roof
There is no horizontal tie beam
There is a horizontal tie at the feet of rafters only
There is a horizontal tie at almost the middle of rafters only
There are two horizontal ties, one at the feet and other at the middle of the rafters
The minimum distance between the centres of bulb of diameter du, of a multi under reamed piles, is
du
1.25 du
1.5 du
1.75 du
In case of Raymond pile
Lengths vary from 6 m to 12 m
Diameter of top of piles varies from 40 cm to 60 cm
Diameter of pile at bottom varies from 20 cm to 28 cm
All the above
The single stage well point system of dewatering an excavation can be used if the depth of excavation does not exceed
5 m
10 m
15 m
20 m