Q.1
Percentage content of silica in window glass, is
Q.2
Chemically, marble is known as
Q.3
Geologically, marble is known as
Q.4
Acrylic sheets
Q.5
Wrought iron contains carbon about
Q.6
The usual percentages of clay and metal in cermet are:
Q.7
For a good building stone, its specific gravity should the greater than
Q.8
In arches, stratified stones are placed so that their planes are
Q.9
If ‘P’ is the percentage of water required for normal consistency, water to be added for determination of initial setting time, is
Q.10
The type of roof which slopes in two directions with a break in the slope on each side is known as
Q.11
The slenderness ratio for masonry walls should not be more than
Q.12
For construction of structures under water, the type of lime used, is
Q.13
Pick up the correct statement from the following: Method of sawing timber
Q.14
The nominal size of the modular brick is
Q.15
Clay and silt content in a good brick earth must be at least
Q.16
The initial setting time for ordinary Portland cement as per IS specifications should not be less than
Q.17
The variety of pig iron used for manufacture of wrought iron, is
Q.18
Quick lime (or caustic lime)
Q.19
The cast iron when heated to red heat with powdered red haematite in an oven for increasing its toughness, is converted to
Q.20
Cast iron is used for
Q.21
Bulking of sand is caused due to
Q.22
The proportions of charcoal, saltpetre and sulphur in gun powder by weight, are respectively:
Q.23
Wrought iron is manufactured from pig iron by
Q.24
Pig iron is manufactured from the ores by
Q.25
Quick lime is
(i) Slow in setting
(ii) Rapid in slacking
(iii) Good in strength
Q.26
Good quality stones must
Q.27
Whitworth compressed steel is obtained when molten steel is subjected to a pressure of
Q.28
To give a brilliant finish, the type of varnish used, is
Q.29
A mortar joint in masonry which is normal to the face of wall is known as
Q.30
The process of decarbonising the pig iron completely and then adding proper percentage of carbon for manufacturing steel, is called
Q.31
Compared to mild steel, cast iron has
(i) High compressive strength
(ii) High tensile strength
(iii) Low compressive strength
(iv) Low tensile strength
Q.32
Inner part of a timber log surrounding the pitch, is called
Q.33
For high grade instruments the steel preferred to, is
Q.34
According to IS specifications, the compressive strength of ordinary Portland cement after three days should not be less than
Q.35
Crushing strength of a first class brick should not be less than
Q.36
The tendency of a stone is, to split along:
Q.37
Initial setting of cement is caused due to
Q.38
Early attainment of strength in rapid hardening cement is mainly due to
Q.39
Percentage of carbon content in mild steel is
Q.40
Wrought iron is used for
Q.41
Asphalt is obtained from
Q.42
The normal curing period for lime mortar, is:
Q.43
Glazing is used to make earthenware
Q.44
Stainless steel resists corrosion due to
Q.45
Chlorite, a green colour mineral is mainly derived from the decomposition of
Q.46
Excess of silica in brick earth results in
Q.47
Plywood has the advantage of
Q.48
Addition of pozzolana to ordinary Portland cement increases
Q.49
As per IS specifications, the maximum final setting time for ordinary Portland cement should be
Q.50
Initial setting time of cement for asbestos cement products should be not less than
0 h : 0 m : 1 s