For constructing a terrazzo floor, Pick up the incorrect statement from the following:
A base course is prepared as in cement concrete flooring
A 32 mm thick layer of cement concrete (1 : 2 : 4) is laid on the base course and the surface is made smooth by trowelling
Glass strips are driven into the layer according to the pattern required
After final grinding is over, oxalic acid mixed with water is spread over and rubbed hard with soft material
Correct Answer :
B. A 32 mm thick layer of cement concrete (1 : 2 : 4) is laid on the base course and the surface is made smooth by trowelling
Related Questions
The brick laid with its breadth parallel to the face of a wall, is known as
Header
Stretcher
Closer
None of these
To stagger vertical joints in successive courses of a wall, a piece of brick is generally used at the end of the course, which is known as
Bat
Header
Stretcher
Closer
In the construction of arches, sand box method is used for
Centring
Actual laying of arch work
Striking of centring
None of the above
Pick up the incorrect statement from the following:
Horizontal D.P.C. is provided at plinth level in internal walls
D.P.C. is provided under door and verandah openings
Vertical D.P.C. is not provided in internal walls
Cement concrete is a rigid damp-proofing material
The type of flooring suitable for use in churches, theatres, public libraries and other places where noiseless floor covering is desired is
Cork flooring
Glass flooring
Wooden flooring
Linoleum flooring
A concrete structure is set on fire and the temperature raises to 1000°C. The strength of concrete as compared to original strength reduces to
10 %
15 %
20 %
25 %
The art of bringing the floor to a true level surface by means of screeds, is called
Topping
Bedding
Screeding
None of these
For providing a raft foundation, the following activities are involved
1. Ramming the foundation bed
2. Excavation of the soil upto required depth
3. Laying the reinforcement over the foundation bed
4. Curing the cement concrete placed over reinforcement
5. Pouring the cement concrete over the reinforcement The correct sequence is
1, 2, 3, 4, 5
5, 4, 3, 2, 1
2, 1, 3, 5, 4
3, 2, 5, 1, 4
Rotary drilling is the fastest method in case of
Rocky soils
Clay soils
Sandy soil
All of these
The ceiling height of a building is
Between ceiling and ground level
Between ceiling and floor level
Upto roof above ground level
Upto ceiling from the ground level
Bearing capacity of soils cannot be improved by
Draining sub-soil water
Ramming crushed stone in soil
Driving sand piles
Watering surface of soil
Crown is located at
Highest point on the extrados of the arch
Highest point on the intrados of the arch
Skew-back of the arch
None of these
The Auger borings are not common
In soils that require lateral support
In cohesive soils
In soft soils
None of the above
Pick up the incorrect statement from the following:
The width of the wall is constructed thicker at the base in a stepped fashion
A long vertical load transferring concrete structure is called a concrete pile
In pile which transfers the load to the soil by the friction between the pile and the surrounding soil is called friction pile
The pile which transfers the load to a hard rock bed at certain depth is called load bearing
The black cotton soil
Undergoes volumetric changes
Swells excessively when wet
Shrinks excessively when dry
All the above
For a rectangular foundation of width b, eccentricity of load should not exceed
b/2
b/3
b/4
b/6
An arch may fail due to
Uneven settlement of abutments
Sliding of voussoirs
Crushing of the material
All the above
Pile foundations are suitable for
Water logged soils
Soft rocks
Compact soils
Multi-storeyed buildings
In high mountainous region, the type of roof generally recommended for buildings, is
Shed type
Gable type
Gambrel type
Mansard type
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 bearing capacity of a water logged soil, may be improved by
Grouting
Chemical action
Drainage
Compaction
Pick up the correct statement from the following:
English bond is used for brick masonry to support heavy loads
Double-Flemish bond is suitable for brick masonry to give uniform face appearance
The stretcher bond is used for the construction of half brick masonry brick
All the above
The bearing capacity of piles is determined by
Dynamic formula
Static formula
Pile load tests
All the above
The form Work including the props can be removed from beams, only after
3 day
7 days
14 days
21 days
The differential settlement in case of foundations on sandy soils should not exceed
25 mm
40 mm
65 mm
100 mm
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
The maximum total settlement for raft foundation on clayey soils should be limited to
25 mm
25 to 40 mm
40 to 65 mm
65 to 100 mm
Pick up the correct statement from the following:
The first coat of stucco plaster is called scratch coat
The second coat of stucco plaster is called brown coat
The third coat of stucco plaster is called white coat
All the above
Dampness causes
Efflorescence
Bleaching of paints
Crumbling of plaster
Growth of termites
In verandah floors outward slope is
1 in 40
1 in 50
1 in 60
1 in 70