In grillage foundations, distance between flanges of grillage beams, is kept
40 cm
Equal to flange width
Twice the flange width
Maximum of (a), (b) and (c)
Correct Answer :
C. Twice the flange width
Related Questions
For heavy embankments and dams, of height h, the depth of exploration of soil should not be less than
h/4
1/2 h
h
2 h
In jack arch floor, the rise is kept
1/6th of the span
1/8th of the span
1/10th of the span
1/12th of the span
The bond in which headers and stretchers are laid in alternate courses and every stretcher course is started with a three fourth brick bat, is known as
English cross bond
Dutch bond
Monk bond
Rat-trap bond
The dimensions of a half queen closer, are
9 cm × 9 cm × 9 cm
9 cm × 9 cm × 4.5 cm
9 cm × 4.5 cm × 9 cm
1.8 cm × 4.5 cm × 9 cm
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
Brick nogging type of partition wall, is constructed by
Laying bricks as stretchers in cement mortar
Laying bricks as headers in cement mortar
Reinforcing brick wall with iron straps
Constructing brick work within a wooden framework
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
Cast iron piles
Are suitable for works under sea water
Resist shocks or vibrations
Are suitable for use as batter piles
Are useful for heavy vertical loads
Rotary drilling is the fastest method in case of
Rocky soils
Clay soils
Sandy soil
All of these
A covering of concrete placed on the exposed top of an external wall, is known as
Cornice
Coping
Frieze
Lintel
The columns of multi-storeyed buildings are designed to withstand the forces due to
Dead loads
Live loads
Wind loads
All of these
The X-ray rooms are plastered with
Plaster of Paris
Barium plaster
Martin's cement
Keen's cement
In grillage foundations, distance between flanges of grillage beams, is kept
40 cm
Equal to flange width
Twice the flange width
Maximum of (a), (b) and (c)
The type of footing which is used to transmit heavy loads through steel columns is
Raft foundation
Grillage foundation
Well foundation
Isolated footing
Negative skin friction
Is a downward drag acting on a pile due to downward movement of the surrounding compressible soil relative to the pile
Develops due to lowering of ground water
Both (a) and (b)
Neither (a) not (b)
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
The entrained concrete is used in lining walls and roofs for making
Heat insulated
Sound insulated
Neither (a) nor (b)
Both (a) and (b)
Dutch bond is a modification of
English bond
Stretcher bond
Header bond
Single Flemish bond
Pick up the incorrect statement from the following:
The function of foundation is to distribute the load of super structure over a large bearing area
No timbering is required for shallow trenches
Shallow foundations can be constructed on made-up soil
Black cotton soil is very good for foundation bed
The minimum width of a stair in residential buildings, is
55 cm
70 cm
85 cm
100 cm
Bearing capacity of soils cannot be improved by
Draining sub-soil water
Ramming crushed stone in soil
Driving sand piles
Watering surface of soil
Suitable spacing of timber piles, is
50 cm
60 cm
80 cm
90 cm
The brick laid with its length parallel to the face of a wall, is a known as
Header
Stretcher
Closer
None of these
The minimum strength of the mortar used in load bearing brick masonry, is
50 N/cm2
100 N/cm2
150 N/cm2
200 N/cm2
The taper of precast concrete pile should not be more than
1 cm per metre length
2 cm per metre length
4 cm per metre length
5 cm per metre length
In flat roof of reinforced cement concrete, the recommended angle of slope, is
Zero
A few degrees
10°
200°
Stud(s) of a common wooden partition
Are vertical wooden members
Is the upper horizontal wooden member
Is the lower horizontal wooden member
Are the intermediate horizontal wooden members
The maximum permissible deflection of a timber beam supporting a roof, is
L/100
L/150
L/260
L/360
Ornamental moulded course placed on the top of a wall, is
Cornice
Coping
Frieze
Lintel
In horizontal D.P.C, thickness of cement concrete (1 : 2 : 4) is
2 cm
4 cm
6 cm
8 cm