The slenderness ratio for masonry walls should not be more than
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For construction of structures under water, the type of lime used, is
A. Hydraulic lime
B. Fat lime
C. Quick lime
D. Pure lime
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Pick up the correct statement from the following: Method of sawing timber
A. Tangentially to annual rings, is known as tangential method
B. In four quarters such that each board cuts annual rings at angles not less than 45°, is known as quarter sawing method
C. Cut out of quarter logs, parallel to the medullary rays and perpendicular to annual rings, is known as radial sawing
D. All the above
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Inner part of a timber log surrounding the pitch, is called
A. Sapwood
B. Cambium layer
C. Heart wood
D. None to these
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For high grade instruments the steel preferred to, is
A. Cast steel
B. Bessemer steel
C. Mild steel
D. Whitworth compressed steel
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If ‘P’ is the percentage of water required for normal consistency, water to be added for determination of initial setting time, is
A. 0.70 P
B. 0.75 P
C. 0.80 P
D. 0.85 P
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The type of roof which slopes in two directions with a break in the slope on each side is known as
A. Gable roof
B. Hip roof
C. Gambrel roof
D. Mansard roof
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The process of decarbonising the pig iron completely and then adding proper percentage of carbon for manufacturing steel, is called
A. Cementation process
B. Crucible process
C. Bessemer process
D. Open hearth process
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Compared to mild steel, cast iron has
(i) High compressive strength
(ii) High tensile strength
(iii) Low compressive strength
(iv) Low tensile strength
A. (i) and (ii)
B. (ii) and (iii)
C. (iii) and (iv)
D. (i) and (iv)
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Plywood has the advantage of
A. Greater tensile strength in longer direction
B. Greater tensile strength in shorter direction
C. Same tensile strength in all directions
D. None of the above
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For a good building stone, its specific gravity should the greater than
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In arches, stratified stones are placed so that their planes are
A. Parallel
B. Perpendicular
C. Radial
D. None of these
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Whitworth compressed steel is obtained when molten steel is subjected to a pressure of
A. 5 kg/mm2
B. 9 kg/mm2
C. 13 kg/mm2
D. 15 kg/mm2
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To give a brilliant finish, the type of varnish used, is
A. Water varnish
B. Spirit varnish
C. Turpentine varnish
D. Oil varnish
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A mortar joint in masonry which is normal to the face of wall is known as
A. Bed joint
B. Wall joint
C. Cross joint
D. Bonded joint
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Percentage content of silica in window glass, is
A. 40 to 45
B. 50 to 55
C. 60 to 65
D. 70 to 75
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The variety of pig iron used for manufacture of wrought iron, is
A. Bessemer pig
B. Grey or foundry pig
C. White forge pig
D. Mottled pig
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Quick lime (or caustic lime)
A. Is obtained by the calcination of pure lime stone
B. Has great affinity to moisture
C. Is amorphous
D. All the above
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The cast iron when heated to red heat with powdered red haematite in an oven for increasing its toughness, is converted to
A. Grey cast iron
B. White cast iron
C. Mottled cast iron
D. Toughed cast iron
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The tendency of a stone is, to split along:
A. Texture
B. Fracture
C. Cleavage
D. Structure
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