A ferrous metal is
Cast iron
Wrought iron
Steel
All the above
Correct Answer :
D. All the above
Related Questions
Cement paints usually
Contain hydrated lime
Contain 5% to 10% colour pigments
Contain 5% sodium chloride
All the above
Oil varnish generally consists of
Synthetic resin and spirit
Oil, wax and resin
Resin, oil and turpentine
Spirit, oil and wax
For a 50 kg cement bag water required, is
16.5 litres
18.5 litres
20.5 litres
22.5 litres
The amount of water used for one kg of distemper is
0.2 liter
0.4 liter
0.6 liter
0.8 liter
Jhumb bricks are
Under burnt
Over burnt
Kutcha
None of these
Acrylic is the name of
Cellulose resin
Alkyd resin
Methyl methacrylate
Cumarone-indene
The compound of Portland cement which reacts immediately with water and also sets first is
Tri-calcium silicate
Di-calcium silicate
Tri-calcium aluminate
Tetra calcium alumino ferrite
Plywood is made by bonding together thin layers of wood in such a way that the angle between grains of any layer to grains of adjacent layers is
0°
30°
45°
90°
Cast steel is manufactured by
Cementation process
Crucible process
Bessemer process
Open hearth process
The presence of original rounded surface on the manufactured piece of timber, is called
Wane
Torn grain
Diagonal grain
Chipmark
Percentage of silica in a good brick earth lies between
5 to 10 %
20 to 30 %
50 to 60 %
70 to 80 %
Pick up the rock which is not a sedimentary rock from the following:
Gravel
Sand stone
Gypsum
Dolerite
The main ingredient of a good quality brick earth, is
Magnesia
Lime
Silica
Alumina
Duco paints are
Plastic paints
Cellulose paints
Emulsion paints
Oil paints
The rocks formed from molten magma, are called
Sedimentary rocks
Igneous rocks
Metamorphic rocks
None of these
Mastic asphalt is generally used for
Damp proof course
Water proof layer
Partition walls
Both (A) and (B)
Rapid hardening cement contains
Tri-calcium silicate
Tri-calcium aluminate
Tetra-calcium alumino-ferrite
Di-calcium silicate
The most durable varnish is
Water varnish
Spirit varnish
Turpentine varnish
Oil varnish
Wrought iron contains carbon upto
0.25 %
1.0 %
1.5 %
2 %
Study the following statements. (i) Hydraulic lime is suitable for white washing, (ii) Fat lime is suitable for whitewashing, (iii) Hydraulic lime is suitable for making mortar, (iv) Fat lime is suitable for making mortar. The correct answer is
(i) and (iv)
(ii) and (iii)
(i) and (ii)
(iii) and (iv)
Resins are
Not soluble in water
Soluble in spirit
Used in varnishes
Left behind on evaporation of oil
With storage, strength of cement
Increases
Decreases
Remains the same
None to these
To give a brilliant finish, the type of varnish used, is
Water varnish
Spirit varnish
Turpentine varnish
Oil varnish
Forge pig may be converted to wrought iron by
Rolling
Pudding
Shingling
Refining
PVC stands for
Plastic very compact
Polythene vinyl chloride
Polythene vinyl carbon
Polythene vanadium carbide
The percentage of alumina and silica in good fire clay vary respectively is
25, 75
30, 70
35, 65
All of these
Lime stone is not a
Sedimentary rock
Stratified rock
Aqueous rock
Metamorphic rock
Pick up the correct statement from the following:
For thin structures subjected to wetting and drying, the water cement ratio should be 0.45
For mass concrete structures subjected to wetting and drying, the water ratio should be 0.55
For thin structures which remain continuously under water, the watercement ratio by weight should be 0.55
All the above
The slenderness ratio for masonry walls should not be more than
10
20
30
40
Durability of building stone is affected by its
Chemical composition
Texture
Resistance to atmosphere
All the above