For the manufacture of plywood, veneers are placed so that grains of adjacent veneers
Run at right angles
Parallel
Inclined at 45°
Inclined at 60°
Correct Answer :
A. Run at right angles
Related Questions
The property by virtue of which lime sets under water, is known as
Slacking
Setting
Hydraulicity
Calcining
The presence of sand in brick earth prevents:
Cracking of bricks
Shrinkage of bricks
Warping of bricks
None of these
The commonly used drying oil for oil paints, is
Olive oil
Linseed oil
Kerosene oil
Acetate of lead
Bitumen may be dissolved in
Carbondioxide
Water
Sodium chloride
Carbon disulphide
Polymerization helps to improve the property of
Strength
Rigidity
Elasticity
All of these
Brass is an alloy of
Copper and zinc
Zinc and lead
Tin and silver
Zinc and nickel
The compound of Portland cement which reacts immediately with water and also sets first is
Tri-calcium silicate
Di-calcium silicate
Tri-calcium aluminate
Tetra calcium alumino ferrite
Which one of the following is acid resistant asbestos?
Actinolite asbestos
Amosite asbestos
Anthophylite asbestos
All the above
Apiece of sawn timber whose cross-sectional dimensions exceed 5 cm, in one direction and 20 cm in the other direction, is called a
Cant
Deal
Baulk
Strip
Plywood is normally available
1 mm thick
2 mm thick
2 to 3 mm thick
3 mm to 4 mm thick
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
Mastic asphalt is
Acid resisting material
Non-corrosive material
Corrosive material
Heating-resisting material
Pick up the incorrect statement from the following:
Hydraulic lime is generally obtained by burning kankar
Hydraulic lime sets slowly as compared to fat lime
Hydraulic lime is generally used in lime mortar
None of these
The main function of alumina in brick earth is
To impart plasticity
To make the brick durable
To prevent shrinkage
To make the brick impermeable
Galvanising means covering iron with a thin coat of
Tin
Zinc
Glaze
Coal tar
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
Strength of cement concrete primarily depends upon
Quality of water
Quantity of aggregate
Quantity of cement
Water-cement ratio
Bitumen emulsion is
A liquid containing bitumen in suspension
A paint
Used as anti-corrosive paint
All the above
PVC stands for
Plastic very compact
Polythene vinyl chloride
Polythene vinyl carbon
Polythene vanadium carbide
Excess of alumina in brick earth makes the brick
Impermeable
Brittle and weak
To lose cohesion
To crack and warp on drying
Which of the following is a rock?
Quartz
Mica
Gypsum
None of the above
The specific gravity of marble, is
2.50
2.60
2.66
2.72
The yield strength and tensile strength of low carbon steel may be improved by the addition of
Manganese
Chromium
Nickel
Vanadium
The commonly used lime in white washing, is
White lime
Fat lime
Hydraulic lime
Quick lime
Dorry's testing machine is used for
Crushing test of stone
Hardness test of stone
Impact test of stone
Water absorption test
The main constituent which imparts hydraulicity to hydraulic lime is
Calcium oxide
Silica
Clay
Water
The proportions of lime and sand in the mortar normally used in brick construction are
1 : 2
1 : 4
1 : 6
1 : 8
Mastic asphalt is generally used for
Damp proof course
Water proof layer
Partition walls
Both (A) and (B)
The stretcher bond in brick masonry can be used only when the thickness of wall is
90 mm
180 mm
190 mm
280 mm
The portion of the brick cut across its width and having its length equal to that of a full brick, is known as
Closer
Queen closer
King closer
Prince closer