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
Correct Answer :
B. C.I. pipes, G.I. pipes, A.C. pipes, PVC pipes
Related Questions
Distemper is
A paint consisting of powdered chalk, pigments and water
A water proofing agent
A paint consisting of coloured cement and water
A drying agent
Asbestos
Is an excellent insulator for heat and electricity
Is fire-proof and acid proof
Has sp. gravity equal to 3.10
All the above
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
Slacking of lime is affected by
Keeping it exposed to air
Immersing the lime in water
Crushing the lime lumps
None of these
The melting point of silica is:
1570°C
1630°C
1730°C
1850°C
Bulking of sand is caused due to
Surface moisture
Air voids
Viscosity
Clay contents
Seasoning is
A process of removing sap
Creosoting
Painting with sodium silicate
Coating with tar
In paints, the pigment is responsible for
Durability
Colour
Smoothness
Glassy face
Which one of the following is used for preparing porcelain?
Clay
Feldspar
Quartz
All of these
Pick up the correct statement from the following:
Steel produced by open hearth process is milder than that obtained by the Bessemer process
Engineers prefer open hearth steel for structural purpose as it is more homogenous
Basic Bessemer process is suitable for converting poor ore containing a large proportion of sulphur and phosphorus into steel
All the above
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
Which one of the following polymers is obtained from condensation polymerization?
Phenol formaldehyde
Carbamide
Melamine-formaldehyde
All of these
For preparing porcelains, the clay should be
Sufficiently pure
Of high degree of tenacity
Of good plasticity
All the above
The base material for distemper, is
Chalk
Lime
Lime putty
Cement wash
The vehicle used in case of enamel paints is usually
Linseed oil
Water
Varnish
None of the above
Softer variety of steel may be obtained by
Cementation process
Crucible process
Bessemer process
Open hearth process
Commonly used thinner in
Lacquer paints, is alcohol
Cellulose paints is ethyl acetate
Oil paints, is naphtha
All the above
The rocks which are formed due to pouring of magma at the earth's surface are called
Plutonic rocks
Hypabyssal rocks
Volcanic rocks
Igneous rocks
Pick up the correct statement from the following:
The lime in excess makes the cement unsound and causes the cement to expand and disintegrate
The silica in excess makes the cement stronger but its setting time also increases
The excess amount of alumina weakens the cement
All the above
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 plywood
Has good strength along the panel only
Can be spilt in the plane of the panel
Has greater impact resistance to blows than ordinary wood
Cannot be bent more easily than ordinary wood of same thickness
The most important constituent of varnish, is
Drier
Solvent
Resin
All the above
According to ISI, bitumen is classified into
2 grades
4 grades
8 grades
10 grades
With storage, strength of cement
Increases
Decreases
Remains the same
None to these
Mastic asphalt is
Acid resisting material
Non-corrosive material
Corrosive material
Heating-resisting material
Pick up the incorrect statement from the following:
Plastics are chemical resistant
Plastics are durable
Plastics are ductile
Plastics are excellent electric insulators
Quick lime
Generates heat when added to water
Reacts with carbon dioxide
May be used for white-washing
All the above
Linseed oil is used in paints as
Thinner
Vehicle
Base
Drier
Lime stone is not a
Sedimentary rock
Stratified rock
Aqueous rock
Metamorphic rock
The slenderness ratio for masonry walls should not be more than
10
20
30
40