Spirit varnish generally consists of
Oil, wax and resin
Alcohol, wax and turpentine
Pigment and synthetic resin
Spirit and shellac
Correct Answer :
D. Spirit and shellac
Related Questions
For lime concrete,
Slump is 50 to 75 mm
Flexural strength at 90 days is 0.2 N/mm2
Compressive strength at 90 days is 1.5 N/mm2
All the above
The size of modular bricks, is
10 × 10 × 9 cm
19 × 9 × 9 cm
22.5 × 10 × 8.5 cm
22.5 × 8.0 × 9 cm
To retard the initial setting time of cement, the compound responsible, is
Tri-calcium silicate
Gypsum
Di-calcium silicate
Tri-calcium aluminate
Stones used for rubble masonry must be
Soft
Hard
Light
Heavy
The normal consistency of ordinary Portland cement is about
10 %
20 %
30 %
40 %
Brass is an alloy of
Copper and zinc
Zinc and lead
Tin and silver
Zinc and nickel
Pick up the correct statement from the following:
Bull's trench kiln a trench excavated in ground
Hoffman's kiln is constructed over ground
Tunnel Kiln is constructed as a tunnel
All the above
After storage, the strength of cement
Decreases
Increases
Remains same
May increase or decrease
Mastic asphalt is normally used for
Sound insulation
Water proofing
Fire proofing
None to these
The fire clay contains pure
Lime
Oxide of iron
Hydrated aluminium silicate
Magnesium
Pegmatite is a/an
Intrusive igneous rock
Extrusive igneous rock
Sedimentary rock
Metamorphic rock
Priming consists of
One part of white lead, 8 parts of chalk and four parts of twice boiled linseed oil
8 parts of white lead, one part of chalk and four parts of twice boiled linseed oil
One part of white lead, 8 parts of chalk and one part of linseed oil
None to these
The term frog means
An apparatus to lift the stone
A depression on a face of brick
Vertical joint in a brick work
Soaking brick in water
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)
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
Elastomers can extend upto
Five times their original dimensions
Seven times their original dimensions
Ten times their original dimensions
Three times their original dimensions
The commonly used raw material in the manufacture of cement, is
Slate
Sand stone
Lime stone
Basalt
In arches, stratified stones are placed so that their planes are
Parallel
Perpendicular
Radial
None of these
Inner part of a timber log surrounding the pitch, is called
Sapwood
Cambium layer
Heart wood
None to these
The rocks which are formed due to cooling of magma at a considerable depth from earth's surface are called
Plutonic rocks
Hypabyssal rocks
Volcanic rocks
Igneous rocks
Granite mainly composed of quartz and feldspar particles, is obtained from
Sedimentary rocks
Metamorphic rocks
Igneous rocks
All the above
If water required for 1 bag of cement is 30 litres, the water cement ratio is:
0.40
0.50
0.60
None of these
The nominal size of the modular brick is
190 mm × 90 mm × 80 mm
190 mm × 190 mm × 90 mm
200 mm × 100 mm × 100 mm
200 mm × 200 mm × 100 mm
Upto a maximum of 72% of iron, is available in
Magnetite
Limonite
Siderite
Iron pyrites
The practical limit of moisture content achieved in air drying of timber is
5 %
15 %
25 %
35 %
Lime putty
Is made from hydraulic lime
Is made by adding lime to water
Can be used only upto three days
All of above
Galvanising means covering iron with a thin coat of
Tin
Zinc
Glaze
Coal tar
For sanitary pipes and chemical stonewares,
Salt glazing is used
Lead glazing is used
Opaque glazing is used
None of these
Percentage of carbon content in mild steel is
Less than 0.25
Between 0.25 and 0.7
Between 0.7 and 1.5
Greater than 1.5
Acrylic sheets
Possess 10 to 17 times greater breakage resistance than that of glass of equivalent thickness
Are generally unaffected by most household detergents
Possess the light transmission rate of 93%
All the above