Q.1
Pig iron made from haematite ores free from sulphur, phosphorus and copper, is known as
Q.2
The vehicle used in case of enamel paints is usually
Q.3
Which one of the following is used for preparing porcelain?
Q.4
Name the type of cement from the following for canal linings:
Q.5
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.
Q.6
The yield strength and tensile strength of low carbon steel may be improved by the addition of
Q.7
Commonly used thinner in
Q.8
Which of the following trees yields hard wood?
Q.9
The commonly used drying oil for oil paints, is
Q.10
Formula for quick lime, is
Q.11
Plywood is normally available
Q.12
Portland cement manufactured from pure white chalk and clay but free from iron-oxide, is known as
Q.13
Bitumen may be dissolved in
Q.14
Turpentine oil is used in paints as
Q.15
Linseed oil is used in paints as
Q.16
The practical limit of moisture content achieved in air drying of timber is
Q.17
Which of the following represents a metamorphic rock?
(i) Slate
(ii) Shale
(iii) Quartzite
Q.18
Smith's test of stones is performed to find out
Q.19
Refractory bricks resist
Q.20
The percentage of alumina and silica in good fire clay vary respectively is
Q.21
Due to attack of dry rot, the timber
Q.22
The process of manufacturing steel by heating short lengths of wrought iron bars mixed with charcoal in fire clay crucibles and collecting the molten iron into moulds, is known as
Q.23
The most durable varnish is
Q.24
Good quality sand is never obtained from
Q.25
Water paint is a
Q.26
The pigment used in paints for corrosive resistance, is
Q.27
The type of steel used for precision levelling staff, is
Q.28
Rapid hardening cement attains early strength due to
Q.29
The rocks which are formed due to cooling of magma at a considerable depth from earth's surface are called
Q.30
The rocks which are formed due to cooling of magma at a relatively shallow depth from the earth's surface are called
Q.31
The rocks which are formed due to pouring of magma at the earth's surface are called
Q.32
A 1st class brick immersed in water for 24 hours, should not absorb water (by weight) more than
Q.33
The commonly used lime in white washing, is
Q.34
Plywood is made from
Q.35
Veneering means
Q.36
Apiece of sawn timber whose cross-sectional dimensions exceed 5 cm, in one direction and 20 cm in the other direction, is called a
Q.37
The compound of Portland cement which contributes to the strength after two to three years is
Q.38
After storage, the strength of cement
Q.39
The plywood
Q.40
The type of arch generally constructed over a wooden lintel or over a flat arch for the purpose of carrying the load of the wall above is
Q.41
Bitumen emulsion is
Q.42
The steel used for the manufacture of rails, is
Q.43
The constituent of cement which is responsible for all the undesirable properties of cement is
Q.44
The main constituent of cement which is responsible for initial setting of cement is
Q.45
Three basic raw materials which are needed in large quantities for production of steel are
Q.46
The proportions of lime and sand in the mortar normally used in brick construction are
Q.47
Asbestos cement
Q.48
Spalling hammer is used for
Q.49
In stone masonry, stones (stratified rocks) are so placed that the direction of pressure to the plane of bedding is
Q.50
Which of the following stone is best suited for construction of piers and abutments of a railway bridge?
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