The steel used in R.C.C. work is
Stainless steel
Mild steel
High carbon steel
Wrought iron
Correct Answer :
B. Mild steel
Related Questions
The timber having maximum resistance against white ants, is obtained from
Chir
Shishum
Sal
Teak
Pick up the incorrect statement from the following:
Plastics are chemical resistant
Plastics are durable
Plastics are ductile
Plastics are excellent electric insulators
Jumper is a tool used for
Testing of stones
Quarrying of stones
Dressing of stones
None of the above
Based on flow quality, the sequence of pipes is
A.C. pipes, G.I. pipes, C.I. pipes, PVC pipes
C.I. pipes, G.I. pipes, A.C. pipes, PVC pipes
C.I. pipes, G.I. pipes, PVC pipes, A.C. pipes
None of these
Which of the following cements is suitable for use in massive concrete structures such as large dams?
Ordinary Portland cement
Low heat cement
Rapid hardening cement
Sulphate resisting cement
Minimum required water cement ratio for a workable concrete, is
0.30
0.40
0.50
0.60
First class timber has an average life of
Less than one year
1 to 5 years
5 to 10 years
More than 10 years
Iron ore may contain
Carbon
Silicon
Phosphorus and manganese
All the above
The portion of a brick cut to form angles other than right angles in plan, is known as
Queen closer
King closer
Closer
Squint brick
Galvanising means covering iron with a thin coat of
Tin
Zinc
Glaze
Coal tar
Which of the following gradients exerts maximum influence on properties of steel?
Iron
Carbon
Manganese
Sulphur
A prime coat is given to steel work with
An oxide of iron paint
A mixture of white lead and lead paint
A special paint
Cement paint
The kiln which may work throughout the year, is
Clamp
Bull's kiln
Hoffman's kiln
None of these
Which of the following pairs gives a correct combination of the useful and harmful constituents respectively of a good brick earth?
Lime stone and alumina
Silica and alkalies
Alumina and iron
Alkalies and magnesium
The minimum percentage of silica, alumina and ferric oxide in lime for white washing, is
20
15
5
0
Knots in timber are
Defects caused by crushing fibres
Splits radiating from the centre
Speckled strains
Signs of branches cut off
Pick up the hypabyssal rock from the following:
Granite
Dolerite
Basalt
All the above
Pig iron obtained from the furnace which is properly provided with fuel at a very high temperature, is called
Bessemer pig
Grey or foundry pig
White or forge pig
Mottled pig
The material generally not used as extender in paints, is
Powdered silica
Gypsum
Talc
Zinc white
Asbestos is
Corrugated sheet used for roofing
An incombustible fire proof material
An organic substance
All the above
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)
For sanitary pipes and chemical stonewares,
Salt glazing is used
Lead glazing is used
Opaque glazing is used
None of these
The fire clay contains pure
Lime
Oxide of iron
Hydrated aluminium silicate
Magnesium
Geologically, marble is known as
Sedimentary rock
Igneous rock
Metamorphic rock
Stratified rock
The melting point of silica is:
1570°C
1630°C
1730°C
1850°C
Pick up the correct statement from the following:
The low voltage porcelain is prepared by wet process
The high voltage porcelain is prepared by dry process
The low voltage porcelain is prepared by dry process
None of the above
Mastic asphalt is
Acid resisting material
Non-corrosive material
Corrosive material
Heating-resisting material
Cast iron is used for
Structural works in beams
Small sized water pipes
Columns and struts
None to these
The plastics prepared from Vinyl resin are
Odourless
Non-toxic
Transparent
All of these
The commonly used raw material in the manufacture of cement, is
Slate
Sand stone
Lime stone
Basalt