Q.1

The wedging is adopted for quarrying costly stratified rock such as

  • laterite
  • marble
  • limestone
  • sandstone
  • All the above.
Q.2

The minimum percentage of silica, alumina and ferric oxide in lime for white washing, is

  • 20
  • 15
  • 10
  • 5
  • 0.
Q.3

Pegmatite is a/an

  • intrusive igneous rock
  • extrusive igneous rock
  • sedimentary rock
  • metamorphic rock.
Q.4

The rocks formed from molten magma, are called

  • sedimentary rocks
  • igneous rocks
  • metamorphic rocks
  • none of these.
Q.5

Bitumen paints offer

  • pleasing surface
  • hard surface
  • smooth surface
  • protective surface
  • rough surface.
Q.6

Pick up the correct statement from the following:

  • Rust is due to formation of oxides
  • Cast iron oxidises less
  • Steel oxidises most
  • Wrought iron oxidises moderately
  • All the above.
Q.7

For high grade instruments the steel preferred to, is

  • cast steel
  • bessemer steel
  • mild steel
  • whitworth compressed steel.
Q.8

With storage, strength of cement

  • increases
  • decreases
  • remains the same
  • none to these.
Q.9

The commonly used raw material in the manufacture of cement, is

  • slate
  • sand stone
  • lime stone
  • basalt.
Q.10

Rapid hardening cement attains early strength due to

  • larger proportion of lime grounded finer than normal cement
  • lesser proportion of lime grounded coarser than normal cement
  • lesser proportion of lime grounded finer than normal cement
  • larger proportien of lime grounded coarser than normal cement
  • excess percentage of gypsum.
Q.11

A prime coat is given to steel work with

  • an oxide of iron paint
  • a mixture of white lead and lead paint
  • a special paint
  • cement paint.
Q.12
Bulking of sand is caused due to
  • Surface moisture
  • Air voids
  • Viscosity
  • Clay contents
Q.13
Clay and silt content in a good brick earth must be at least
  • 50 %
  • 40 %
  • 30 %
  • 25 %
Q.14
A ferrous metal is
  • Cast iron
  • Wrought iron
  • Steel
  • All the above
Q.15
Glazing is used to make earthenware
  • hard
  • soft
  • porous
  • impervious
Q.16
Excess of silica in brick earth results in
  • cracking and warping of bricks
  • loss of cohesion
  • enhancing the impermeability of bricks
  • none of the above
Q.17
The normal curing period for lime mortar, is:
  • 1 day
  • 3 days
  • 7 days
  • 10 days
Q.18
Which of the following metamorphic rocks has the most weather resisting characteristics?
  • Marble
  • Quartzite
  • Slate
  • Lime stone
Q.19
Percentage content of silica in window glass, is
  • 40 to 45
  • 50 to 55
  • 60 to 65
  • 70 to 75
Q.20
The usual percentages of clay and metal in cermet are:
  • 50%, 50%
  • 60%, 40%
  • 70%, 30%
  • 80%, 20%
Q.21
The proportions of charcoal, saltpetre and sulphur in gun powder by weight, are respectively:
  • 15, 75, 10
  • 75, 10, 15
  • 10, 15, 75
  • 10, 75, 15
Q.22
Spalling hammer is used for
  • Driving wooden headed chisels
  • Rough dressing of stones
  • Carving of stones
  • Breaking small projection of stones
Q.23
Geologically, marble is known as
  • Sedimentary rock
  • Igneous rock
  • Metamorphic rock
  • Stratified rock
Q.24
In stone masonry, stones (stratified rocks) are so placed that the direction of pressure to the plane of bedding is
  • Right angles
  • 45°
  • 60°
  • Parallel
Q.25
Chemically, marble is known as
  • Metamorphic rock
  • Argillaceous rock
  • Calcareous rock
  • Siliceous rock
Q.26
Which of the following stone is best suited for construction of piers and abutments of a railway bridge?
  • Granite
  • Sand stone
  • Lime stone
  • Quartzite
Q.27
Wrought iron contains carbon about
  • 1.5% to 5.5%
  • 0.5% to 1.75%
  • 0.1% to 0.25%
  • None to these
Q.28
Good quality stones must
  • Be durable
  • Be free from clay
  • Resist action of acids
  • All the above
Q.29
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
Q.30
The tendency of a stone is, to split along:
  • Texture
  • Fracture
  • Cleavage
  • Structure
Q.31
The cast iron when heated to red heat with powdered red haematite in an oven for increasing its toughness, is converted to
  • Grey cast iron
  • White cast iron
  • Mottled cast iron
  • Toughed cast iron
Q.32
Quick lime (or caustic lime)
  • Is obtained by the calcination of pure lime stone
  • Has great affinity to moisture
  • Is amorphous
  • All the above
Q.33
The variety of pig iron used for manufacture of wrought iron, is
  • Bessemer pig
  • Grey or foundry pig
  • White forge pig
  • Mottled pig
Q.34
For a good building stone, its specific gravity should the greater than
  • 1.5
  • 1.7
  • 2.2
  • 2.7
Q.35
In arches, stratified stones are placed so that their planes are
  • Parallel
  • Perpendicular
  • Radial
  • None of these
Q.36
Whitworth compressed steel is obtained when molten steel is subjected to a pressure of
  • 5 kg/mm²
  • 9 kg/mm²
  • 13 kg/mm²
  • 15 kg/mm²
Q.37
To give a brilliant finish, the type of varnish used, is
  • Water varnish
  • Spirit varnish
  • Turpentine varnish
  • Oil varnish
Q.38
A mortar joint in masonry which is normal to the face of wall is known as
  • Bed joint
  • Wall joint
  • Cross joint
  • Bonded joint
Q.39
Plywood has the advantage of
  • Greater tensile strength in longer direction
  • Greater tensile strength in shorter direction
  • Same tensile strength in all directions
  • None of the above
Q.40
Compared to mild steel, cast iron has (i) High compressive strength (ii) High tensile strength (iii) Low compressive strength (iv) Low tensile strength
  • (i) and (ii)
  • (ii) and (iii)
  • (iii) and (iv)
  • (i) and (iv)
Q.41
The process of decarbonising the pig iron completely and then adding proper percentage of carbon for manufacturing steel, is called
  • Cementation process
  • Crucible process
  • Bessemer process
  • Open hearth process
Q.42
The type of roof which slopes in two directions with a break in the slope on each side is known as
  • gable roof
  • hip roof
  • gambrel roof
  • mansard roof
Q.43
If ‘P’ is the percentage of water required for normal consistency, water to be added for determination of initial setting time, is
  • 0.70 P
  • 0.75 P
  • 0.80 P
  • 0.85 P
Q.44
For high grade instruments the steel preferred to, is
  • Cast steel
  • Bessemer steel
  • Mild steel
  • Whitworth compressed steel
Q.45
Inner part of a timber log surrounding the pitch, is called
  • Sapwood
  • Cambium layer
  • Heart wood
  • None to these
Q.46
Pick up the correct statement from the following: Method of sawing timber
  • Tangentially to annual rings, is known as tangential method
  • In four quarters such that each board cuts annual rings at angles not less than 45°, is known as quarter sawing method
  • Cut out of quarter logs, parallel to the medullary rays and perpendicular to annual rings, is known as radial sawing
  • All the above
Q.47
For construction of structures under water, the type of lime used, is
  • Hydraulic lime
  • Fat lime
  • Quick lime
  • Pure lime
Q.48
The slenderness ratio for masonry walls should not be more than
  • 10
  • 20
  • 30
  • 40
Q.49
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
Q.50
Crushing strength of a first class brick should not be less than
  • 3.5 N/mm²
  • 7.0 N/mm²
  • 10.5 N/mm²
  • 14.0 N/mm²
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