Sapwood consists of
Innermost annular rings around the pith
Portion of timber between heartwood and cambium layer
Thin layers below the bark
Thin fibre which extends from the pith outwards and holds the annular rings together
Correct Answer :
B. Portion of timber between heartwood and cambium layer
Related Questions
For preparing porcelains, the clay should be
Sufficiently pure
Of high degree of tenacity
Of good plasticity
All the above
Fibre glass
Retains heat-longer
Has a higher strength to weight ratio
Is shock proof and fire retardant
All the above
For a good building stone, its specific gravity should the greater than
1.5
1.7
2.2
2.7
Quick lime is
Calcium carbonate
Calcium oxide
Calcium hydroxide
None of the above
A pug mill is used for
Softening brick earth
Moulding brick earth
Tempering brick earth
Providing brick earth
The percentage of alumina in a good brick earth lies between
5 to 10 %
20 to 30 %
50 to 60 %
70 to 80 %
The standard size of masonry bricks, is
18 cm × 8 cm × 8 cm
19 cm × 9 cm × 9 cm
20 cm × 10 cm × 10 cm
21 cm × 11 cm × 11 cm
According to ISI, bitumen is classified into
2 grades
4 grades
8 grades
10 grades
The most common admixture which is used to accelerate the initial set of concrete is
Gypsum
Calcium chloride
Calcium carbonate
None of the above
The stretcher bond in brick masonry can be used only when the thickness of wall is
90 mm
180 mm
190 mm
280 mm
Bitumen felt
Is used as water proofing material
Is used as damp proofing material
Is made from bitumen and hessian fibres
All the above
Whitworth compressed steel is obtained when molten steel is subjected to a pressure of
5 kg/mm2
9 kg/mm2
13 kg/mm2
15 kg/mm2
Pick up the correct statement from the following:
Catalysts are added to assist and accelerate the hardening of resin
The fillers are inert materials and they impart strength and hardness
Fibrous fillers increase thermal resistance
All the above
Sapwood consists of
Innermost annular rings around the pith
Portion of timber between heartwood and cambium layer
Thin layers below the bark
Thin fibre which extends from the pith outwards and holds the annular rings together
Clay and silt content in a good brick earth must be at least
50 %
40 %
30 %
25 %
For sanitary pipes and chemical stonewares,
Salt glazing is used
Lead glazing is used
Opaque glazing is used
None of these
Fibre boards can be
Distempered
Painted
Painted and distempered
Used for furniture
The rock generally used for roofing, is
Granite
Basalt
Slate
Pumice
The main ingredient of a good quality brick earth, is
Magnesia
Lime
Silica
Alumina
Pick up the correct statement from the following:
In basic Bessemer process, the steel heats the converter
In open-hearth process, the furnace heats the steel
In Siemens process, the impurities of pig iron are oxidised by the oxygen of the ore
All the above
The variety of pig iron used for the manufacture of steel by Bessemer process, is
Bessemer pig
Grey pig
White forge pig
Mottled pig
The ratio of the thickness of web to that of flange of steel rolled structural beams and channels is
Less than 1
Equal to 1
Greater than 1
Less than 1 in beams but greater than 1 in channels
A heavy stone is suitable for
Arches
Rubble masonry
Roads
Retaining walls
Based on its dry weight, a freshly felled tree may contain water
25 %
50 %
75 %
100 %
Lacquer is
Oil paint
Distemper
Spirit varnish
None to these
The type of steel used for precision levelling staff, is
Titanium steel
Carbon steel
Invar
Stainless steel
Asbestos is
Corrugated sheet used for roofing
An incombustible fire proof material
An organic substance
All the above
If the furnace is provided with insufficient fuel at low temperatures, the type of pig iron produced, is called
Bessemer pig
Grey or foundry pig
White or forge pig
Mottled pig
Pick up the rock which is not a sedimentary rock from the following:
Gravel
Sand stone
Gypsum
Dolerite
Which of the following cements contains maximum percentage of dicalcium silicate?
Ordinary Portland cement
Low heat cement
Rapid hardening cement
Sulphate resisting cement