Oil varnish generally consists of
Synthetic resin and spirit
Oil, wax and resin
Resin, oil and turpentine
Spirit, oil and wax
Correct Answer :
C. Resin, oil and turpentine
Related Questions
A mortar joint in masonry which is normal to the face of wall is known as
Bed joint
Wall joint
Cross joint
Bonded joint
According to IS 399-1963, the weight of the timber is specified at
8% moisture content
10% moisture content
12% moisture content
14% moisture content
Calcination of iron ores is done
To remove moisture
To remove carbonic acid
By roasting in heaps
All the above
Manganese steels
Are non-magnetic
Possess high electrical resistance
Possess low coefficient of expansion
All the above
Pick up the correct statement from the following:
Plastics have generally low melting point
The coefficient of thermal expansion of plastics is about three times than that of steel
The acoustical boards prepared by impregnating fibre-glass with phenolic resins has absorption coefficient of about 0.67
All the above
Jumper is a tool used for
Testing of stones
Quarrying of stones
Dressing of stones
None of the above
PVC stands for
Plastic very compact
Polythene vinyl chloride
Polythene vinyl carbon
Polythene vanadium carbide
Commonly used thinner in
Lacquer paints, is alcohol
Cellulose paints is ethyl acetate
Oil paints, is naphtha
All the above
Bitumen felt
Is used as water proofing material
Is used as damp proofing material
Is made from bitumen and hessian fibres
All the above
Pick up the correct statement from the following:
The free quartz suddenly expands at a temperature lower than 600°C
The lime stone resists fire upto about 800°C and at higher temperature it splits into CaO and CO2
The sand stone with silicates resist a fire in a better way
All the above
The minimum compressive strength of 1st class bricks should be
75 kg/cm2
90 kg/cm2
100 kg/cm2
120 kg/cm2
Proper amount of entrained air in concrete results in (i) Better workability (ii) Better resistance to freezing and thawing (iii) Lesser workability (iv) Less resistance to freezing and thawing The correct answer is
(i) and (ii)
(i) and (iv)
(ii) and (iii)
(iii) and (iv)
Jhumb bricks are
Under burnt
Over burnt
Kutcha
None of these
The type of bond provided in brick masonry for carrying heavy loads is
Single Flemish bond
Double Flemish bond
English bond
Zigzag bond
Specific gravity for most of the building stones lies between
1.5 to 2.0
2.0 to 2.5
2.5 to 3.0
3.0 to 3.5
Three basic raw materials which are needed in large quantities for production of steel are
Iron ore, coal and sulphur
Iron ore, carbon and sulphur
Iron ore, coal and lime stone
Iron ore, carbon and lime stone
Quick lime
Generates heat when added to water
Reacts with carbon dioxide
May be used for white-washing
All the above
When a brick is immersed in water for 24 hours and then dried, if
No grey or white deposits appear on the surface, the brick is free from soluble salts
10 percent surface is covered with grey or white deposits, the brick has slight efflorescence
50 percent surface is covered with grey or white deposits, the brick has serious efflorescence
All the above
Basalt is
Sedimentary rock
Metamorphic rock
Extrusive igneous rock
Intrusive igneous rock
The trunk of tree left after cutting all the branches is known as
Log
Batten
Plank
Baulk
Plywood is obtained by gluing wooden sheets at
100 to 150 N/cm2
100 to 130°C
Both (A) and (B)
Neither (A) nor (B)
The percentage of alumina and silica in good fire clay vary respectively is
25, 75
30, 70
35, 65
All of these
For filling cracks in masonry structures, the type of bitumen used, is
Cut-back bitumen
Bitumen-emulsion
Blown bitumen
Plastic bitumen
Name the type of cement from the following for canal linings:
Sulphate resisting cement
Rapid hardening cement
Quick setting cement
Pozzolana cement
In a rock calcium carbonate predominates. State whether it is:
Siliceous rock
Argillaceous rock
Calcareous rock
None of these
The harmonious mixing of the clay ingredients, is known as
Weathering
Blending
Tempering
None of these
The internal size of mould used in brick preparation is
Equal to the size of a fully burnt brick
Smaller than the size of a fully burnt brick
Greater than the size of a fully burnt brick
None of the above
Galvanising means covering iron with a thin coat of
Tin
Zinc
Glaze
Coal tar
A pug mill is used for
Softening brick earth
Moulding brick earth
Tempering brick earth
Providing brick earth
As per IS specifications, the maximum final setting time for ordinary Portland cement should be
30 minutes
1 hour
6 hours
10 hours