The concrete slump recommended for columns, is
25 to 50 mm
25 to 75 mm
75 to 125 mm
50 to 100 mm
Correct Answer :
C. 75 to 125 mm
Related Questions
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 %
In English garden wall bond
One course of headers to three or five course of stretchers
Queen closer in provided in each heading course
The middle course of stretchers is started with a header to give proper vertical joints
All the above
The exterior angle between outer faces of a wall, is known as
Turn
Junction
Quion
All the above
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
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
Pick up the correct statement from the following:
Sand consists of coarse particles of silica formed due to the disintegration of rocks
The grains of sand are not affected by frost
Sand beds are permeable and do not allow water to rise up between pores due to capillary action
All the above
The piece of a brick cut along the centre of width in such a way that its length is equal to that of full brick, is called
Half brick
Queen closer
King closer
Bevelled closer
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
In places where the soil is soft and has small resistance to the flow of concrete, which one of the following types of piles, is used
Vibro pile
Pressure pile
Franki pile
Pedestal pile
A stair should not have pitch more than
25°
30°
40°
50°
Bearing capacity of soils cannot be improved by
Draining sub-soil water
Ramming crushed stone in soil
Driving sand piles
Watering surface of soil
Which one of the following activities is not correct as applicable to brick corbels?
The maximum projection of the corbel should not be more than the thickness of the wall
The maximum projection of each corbel course should be limited to a quarter brick at a time
The discontinuous corbels are used to carry heavy concentrated loads
Stretcher bond is generally used for the construction of brick corbel
The term string is used for
The underside of a stair
Outer projecting edge of a tread
A sloping member which supports the steps in a stair
A vertical member between two treads
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
The floor is rubbed with oxalic acid, for making its surface
Free from voids
Glossy
Durable
Uniform
Open test pit is only suitable upto a depth of
2 metres
2.5 metres
3 metres
None of the above
In ordinary residential and public buildings, the damp proof course is generally provided at
Ground level
Plinth level
Water table level
Midway ground level and water-table level
A wooden block hinged on post outside a door, is known
Cleat
Stop
Horn
None of these
The wedge shaped bricks forming an arch ring, are called
Soffits
Voussoirs
Haunches
Spandrils
The lower half portion between crown and skew back of the arch, is called
Spandril
Haunch
Springing
Soffit
The members which support covering material of a sloping roof, are
Rafters
Purlins
Battens
Struts
The range of spread from the wall base to outer edge of a brick work foundation does not exceed
1/2 horizontal to 1 vertical
2/3 horizontal to 1 vertical
1 horizontal to 1 vertical
2 horizontals to 1 vertical
While investigating the site, a thick layer of fairly firm clay over a deep layer of soft clay is encountered. In such a situation, the following type of foundation is useful:
Pile formation
Raft foundation
Grillage foundation
None of these
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
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
Rotary drilling
Is not suitable for deposits containing very coarse gravel
Hinders the ground water observations and permeability test
Is not economical for holes of less than 10 cm
All the above
Engineering news formula for obtaining safe bearing capacity of pile for drop hammer, is,
Q = Wh/6 (S + 2.5)
Q = Wh/2.5 (S + 6)
Q = (W × 6)/h (S + 2.5)
Q = (W × 2.5)/6 (S + h)
The concrete slump recommended for columns, is
25 to 50 mm
25 to 75 mm
75 to 125 mm
50 to 100 mm
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
The bearing capacity of granite is generally
5 to 10 kg/cm2
15 to 20 kg/cm2
30 to 35 kg/cm2
40 to 45 kg/cm2