Engineering/Civil Engineering MCQS -Building Materials Section 7 Sample Test,Sample questions

Question:
 
According to IS 399-1963, the weight of the timber is specified at

1. 8% moisture content

2.10% moisture content

3.12% moisture content

4.14% moisture content


Question:
 
Dorry's testing machine is used for

1.crushing test of stone

2.hardness test of stone

3. impact test of stone

4.water absorption test.


Question:
 
The term frog means

1.an apparatus to lift the stone

2.a depression on a face of brick

3.vertical joint in a brick work

4.soaking brick in water.


Question:
  
A rock contains only one mineral It is called

1.homogeneous

2.non-homogeneous

3.monomineralic

4.polymineralic.


Question:
  
Asbestos

1. is a natural fibrous mineral substance

2.is composed of hydrous silicates of calcium and magnesium (CaSiO3, 3MgSiO3)

3.contains iron oxide and alumina

4.all the above.


Question:
  
Asphalt is obtained from

1. petroleum distillation

2.bitumen distillation

3.plastic distillation

4.none of these.


Question:
  
Bitumen felt is used for

1.water proofing

2.damp proofing

3.both (a) and (b)

4.neither (a) nor (b).


Question:
  
Granite mainly composed of quartz and felsper particles, is obtained from

1.sedimentary rocks

2.metamorphic rocks

3.igneous rocks

4.all the above.


Question:
  
Lime stones are generally known as

1.aqueous rocks

2.sedimentary rocks

3.stratified rocks

4.all the above.


Question:
  
Percentage content of silica in window glass, is

1.40 to 45

2.40 to 45

3.60 to 65

4.70 to 75.


Question:
  
Porcelain is used as :

1.sanitary wares

2.electric insulators

3. storage vessels

4.All of the above.


Question:
  
Refractory bricks are

1.neutral refractory bricks

2.acid refractory bricks

3.basic refractory bricks

4.all of the above.


Question:
  
Slump test for concrete is carried out, to determine

1.strength

2.durability

3.workability

4.water content.


Question:
  
Stones used for rubble masonry must be

1.soft

2.hard

3.light

4.heavy


Question:
  
The portion of the brick cut across its width and having its length equal to that of a full brick, is known as

1.closer

2.queen closer

3.king closer

4.none to these.


Question:
According to ISI, bitumen is classified into

1. 2 grades

2.4 grades

3.6 grades

4. 10 grades.


Question:
Basalt is

1. sedimentary rock

2.metamorphic rock

3.extrusive igneous rock

4.intrusive igneous rock.


Question:
Bullet proof glass is made of thick glass sheet sandwiched by a layer of

1.steel

2.stainless steel

3. high test plastic

4. chromium plate.


Question:
Chlorite, a green colour mineral is mainly derived from the decomposition of

1.augite

2.biotite

3.horn blende

4.All of these.


Question:
Dolomite is a lime stone which contains carbonate of magnesia upto

1.15%

2.20%

3.25%

4.35%


Question:
Durability of building stone is affected by its

1.chemical composition

2.texture

3.resistance to atmosphere

4.All of the above.


Question:
During smelting process, the combination of fuel in the furnace

1.forms carbon dioxide

2.carbon dioxide with carbon forms carbon mono-oxide

3. carbon mono-oxide reacts with Fe2O3 to form iron and liberates CO2

4.all the above.


Question:
For a 50 kg cement bag water required, is

1.16.5 litres

2.18.5 litres

3.20.5 litres

4.22.5 litres


Question:
For high grade instruments the steel preferred to, is

1.cast steel

2.bessemer steel

3.mild steel

4.whitworth compressed steel.


Question:
If the ore impurities is

1.clay, lime stone is used as flux

2. lime stone, clay is used as flux

3. lime stone, clay is used as flux

4.All the above.


Question:
Index number expressing the relative sizes of both coarse and fine aggregates, is called

1.proportioning of aggregates

2. fineness modulus

3.grading of aggregates

4. none of these.


Question:
A bull nose brick is not used for

1.rounding off sharp corners

2.pillars

3.decoration purpose

4.arches.


Question:
Lime putty

1.is made from hydraulic lime

2. is made by adding lime to water

3. can be used only upto three days

4.all of above.


Question:
Linseed oil is used in paints as

1.thinner

2.vehicle

3.base

4.drier.


Question:
Magnese steels

1.are non-magnetic

2.possess high electrical resistance

3.possess low coefficient of expansion

4.all the above.


Question:
Pegmatite is a/an

1. intrusive igneous rock

2.extrusive igneous rock

3. sedimentary rock

4.metamorphic rock.


Question:
Pick up the correct statement from the following:

1.The lime in excess makes the cement unsound and causes the cement to expand and disintegrate

2.The silica in excess makes the cement stronger but its setting time also increases

3. The excess amount of alumina weakens the cement

4.All the above.


Question:
Pick up the correct statement from the following:

1.Air bubbles in casting produce a dull sound by tapping their surfaces lightly with a hammer

2.Cupola furnace is used for the manufacture of cast iron

3.Red short iron is of no value for welding purpose

4.All the above.


Question:
Pick up the metal refractory from the following:

1.Molyblendum

2.Tungsten

3.Zicronium

4.All of these.


Question:
Pig iron obtained from the furnance which is properly provided with fuel at a very high temperature, is called

1.Bessemer pig

2.Grey or foundry pig

3.White or forge pig

4.None of the above.


Question:
Plaster of Paris is obtained by calcining

1.bauxite

2.gypsum

3.kankar

4.lime stone


Question:
Priming consists of

1.one part of white lead, 8 parts of chalk and four parts of twice boiled linseed oil

2. 8 parts of white lead, one part of chalk and four parts of twice boiled linseed oil

3.one part of white lead, 8 parts of chalk and one part of linseed oil

4.none to these.


Question:
Red short iron cracks when bent due to the presence of

1.sulphur

2.carbon

3.phosphorus

4.silicon.


Question:
Seasoning of timber is done for

1. increasing moisture content

2.decreasing moisture content

3. increasing strength of timber

4.none to these.


Question:
The coefficient of hardness of stones used in road work should be greater than

1.10

2.12

3.15

4.17


Question:
The frog of a brick is normally made on its

1.top face

2.bottom face

3.longer face

4.shorter side.


Question:
The method of addition polymerization is used for obtaining:

1.polythylene

2.polypropylene

3.polyvinylchloride

4.All of these.


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

1.20

2.15

3.10

4.0


Question:
The most important constituent of an oil paint, is

1.thinner

2.vehicle

3.pigment

4.all the above.


Question:
The percentage of alumina and silica in good fire clay vary respectively is

1.25,75

2.30,70

3.35,65

4.All of these.


Question:
The plastics prepared from Vinyl resin are

1.odourless

2.non-toxic

3.transparent

4.all of these.


Question:
The presence of sand in brick earth prevents:

1.cracking of bricks

2.shrinkage of bricks

3.warping of bricks

4.none of these.


Question:
The property by virtue of which lime sets under water, is known as

1.slacking

2.setting

3.hydraulicity

4.calcining.


Question:
The steel used for the manufacture of rails, is

1.Bessemer steel

2.mild steel

3.cast steel

4.stainless steel.


Question:
To retard the initial setting time of cement, the compound responsible, is

1.Tricalcium silicate

2.Gypsum

3. Di-calcium silicate

4. Tri calcium aluminate.


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