Which of the following timbers is suitable for making sports goods?
Mulberry
Mahogany
Sal
Deodar
Correct Answer :
A. Mulberry
Related Questions
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
Pig iron is manufactured from the ores by
Dressing
Calcination and roasting
Smelting
All the above
Which of the following has more fire resisting characteristics?
Marble
Lime stone
Compact sand stone
Granite
The commonly used drying oil for oil paints, is
Olive oil
Linseed oil
Kerosene oil
Acetate of lead
In brick masonry the bond produced by laying alternate headers and stretchers in each course is known as
English bond
Double Flemish bond
Zigzag bond
Single Flemish bond
A queen closer is a
Brick laid with its length parallel to the face or direction of wall
Brick laid with its breadth parallel to the face or direction of wall
Brick having the same length and depth as the other bricks but half the breadth
Brick with half the width at one end and full width at the other
Slump test for concrete is carried out, to determine
Strength
Durability
Workability
Water content
According to ISI, bitumen is classified into
2 grades
4 grades
8 grades
10 grades
Which one of the following polymers is obtained from condensation polymerization?
Phenol formaldehyde
Carbamide
Melamine-formaldehyde
All of these
Wrought iron is used for
Structural works in beams
Small sized water pipes
Columns and struts
None to these
Pick up the correct statement from the following:
The substance which consists of one primary chemical, is known as monomer
The polymer consists of thousands of monomers joined together
The polymer molecule is called macro-molecule
All the above
The weight of a good quality brick when immersed in water for a period of 16 hours should not exceed the weight of dry brick
20 %
15 %
10 %
None of these
Pick up the correct statement from the following:
The distinct plane of division along which a stone can easily be split, is called natural bed of stone
The natural bed of sedimentary rocks is along the planes of stratification
The natural bed of igneous rocks is not defined
All the above
Bessemer process is used for the manufacture of
Pig iron
Cast iron
Wrought iron
Steel
A ferrous metal is
Cast iron
Wrought iron
Steel
All the above
Glazing of clay products, is done
To improve their appearance
To protect them from atmospheric effect
To protect them from corrosive action
All the above
Which of the following metamorphic rocks has the most weather resisting characteristics?
Marble
Quartzite
Slate
Lime stone
Plastic
Is an organic substance
Consists of natural or synthetic binders
Finished products are rigid and stable at normal temperature
All the above
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
For lime concrete,
Slump is 50 to 75 mm
Flexural strength at 90 days is 0.2 N/mm2
Compressive strength at 90 days is 1.5 N/mm2
All the above
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
A piece of timber whose thickness and width are respectively 5 cm and 10 cm is called
Slate
Plank
Board
Strip
Manganese steels
Are non-magnetic
Possess high electrical resistance
Possess low coefficient of expansion
All the above
Pick up the correct statement from the following:
Hornblende mineral is brittle
Muscovite is also known as white mica and potash mica
Biotite is also known as black-mica
All the above
Pick up the correct statement from the following:
The heating of a material to redness in contact with air, is known as calcination
The property of lime by which it sets or hardens in damp places having no free circulation of air is called setting
The product that remains after calcination of limestone, is called lime
All the above
A heavy stone is suitable for
Arches
Rubble masonry
Roads
Retaining walls
Seasoning of timber is done for
Increasing moisture content
Decreasing moisture content
Increasing strength of timber
None to these
For making fly-ash building bricks, the following mix of fly-ash, sand and lime, is
80 : 13 : 7
70 : 20 : 10
60 : 35 : 5
None of these
Crushing strength of a good building stone should be more than
50 MPa
100 MPa
150 MPa
200 MPa
Invar contains
12% of nickel
24% of nickel
30% to nickel
36% of nickel