Suitable spacing of timber piles, is
50 cm
60 cm
80 cm
90 cm
Correct Answer :
D. 90 cm
Related Questions
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
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 concrete slump recommended for foundations, is
25 to 50 mm
30 to 125 mm
50 to 100 mm
75 to 125 mm
The triangular portion between any two adjacent arches and the tangent to their crowns, is
Haunch
Spandril
Soffit
Rise
Pitched and sloping roofs are suitable for
Coastal regions
Plain regions
Covering large areas
All of the above
Black cotton soil is unsuitable for foundations because its
Bearing capacity is low
Permeability is uncertain
Particles are cohesive
Property to undergo a volumetric change due to variation of moisture content
To ensure that supporting area of an offset footing of a boundary wall is fully compressive, the C.G. of load must act
At the centre of the base
Within the middle third of the base
Within the middle fifth of the base
Neither (a), (b) nor (c)
The strength of brick masonry in 1:6 cement mortar, is
20 tonnes/m2
40 tonnes/m2
50 tonnes/m2
60 tonnes/m2
Pick up the correct statement from the following:
A mortar joint having a concave finishing in brick masonry, is called keyed joint
A mortar joint projecting beyond the face of a masonry wall, is called tucked joint
A mortar joint having a recess in it, is called ruled joint
All the above
A wooden block fixed on back side of a door frame on its post, is known as
Cleat
Stop
Horn
None of these
For different layers of cement concrete floor. Pick up the incorrect statement from the following:
The lowest layer consists of consolidated ground
A 10 cm thick clean sand is laid on consolidated ground
A 10 cm lime concrete (1 : 4 : 8) is laid on clean sand
A 10 cm thick cement concrete (1 : 2 : 4) is laid on top layer
The type of ashlar masonry in which stones are finely chisel dressed and thickness of joints does not exceed 3 mm, is
Chamfered ashlar masonry
Ashlar facing masonry
Random coursed ashlar masonry
Coursed ashlar masonry
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
The Auger borings are not common
In soils that require lateral support
In cohesive soils
In soft soils
None of the above
The bearing capacity of piles is determined by
Dynamic formula
Static formula
Pile load tests
All the above
The triangular space formed between the extrados and the horizontal line drawn through the crown of an arch is known as
Haunch
Spandril
Voussoirs
Skewbacks
The thickness of a reinforced brick partition wall, is generally kept
5 cm
10 cm
15 cm
20 cm
If (φ) is the angle of repose of soil of weight w kg/m3, the horizontal pressure p at a depth of h metres per metre length of wall, is
wh × [(1 - sin φ)/(1 + sin φ)]
(wh/2) × [(1 - sin φ)/(1 + sin φ)]
wh × √[(1 - sin φ)/(1 + sin φ)]
wh × √[(1 + sin φ)/(1 - sin φ)]
Minimum width of landing should be
Equal to width of stairs
Half the width of stairs
Twice the width of stairs
One fourth the width of stairs
The least bearing capacity of soil is that of
Hard rock
Moist clay
Soft rock
Coarse sandy soil
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 the method of tube boring of soil investigation, the following is essential:
A tube of about 2 metres length and 20 cm diameter with a cutting edge
A flap valve at the bottom of tube is provided to extract the soil sample
The tube is raised and lowered by 4 thick rope moving over a pulley suspended on a tripod stand
All the above
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
Herringbone bond is used for
Walls having thickness more than 4 bricks
Architectural finish to the face work
Ornamental panels in brick flooring
All the above
Raft foundation are generally preferred to when the area required for individual footing, is more than
25% to total area
30% of total area
40% to total area
50% of total area
Pick up the commonly adopted geophysical method in civil engineering from the following:
The seismic method
Electrical resistivity method
Gravitational method
Both (a) and (b) of the above
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
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
In soft clay of low bearing capacity, the type of steel pile generally used, is
H-pile
Screw pile
Disc pile
Pipe pile
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