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Building Materials MCQ Questions & Answers

Building Materials MCQs : This section focuses on the "Building Materials". These Multiple Choice Questions (MCQs) should be practiced to improve the Building Materials skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.




Question 1

Pick up the correct statement from the following:

A. In basic Bessemer process, the steel heats the converter
B. In open-hearth process, the furnace heats the steel
C. In Siemens process, the impurities of pig iron are oxidised by the oxygen of the ore
D. all the above.

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Question 2

Brittleness of cold is due to an excess of

A. sulphur
B. carbon
C. phosphorus
D. silicon.

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Question 3

Wrought iron contains carbon upto

A. 0.25%
B. 1.00%
C. 1.50%
D. 2%.

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Question 4

Due to attack of dry rot, the timber

A. cracks
B. shrinks
C. reduces to powder
D. none of these.

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Question 5

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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Question 6

Initial setting time of cement for asbestos cement products should be not less than

A. 30 minutes
B. 50 minutes
C. 75 minutes
D. 90 minutes.

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Question 7

Depending on the chemical composition and mechanical properties, iron may be classified as

A. cast iron
B. wrought iron
C. steel
D. all the above.

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Question 8

The initial setting time of lime-pozzolana, is

A. 30 minutes
B. 60 minutes
C. 90 minutes
D. 120 minutes.

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Question 9

For filling cracks in masonry structures, the type of bitumen used, is

A. cut-back bitumen
B. bitumen-emulsion
C. blown bitumen
D. plastic bitumen.

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Question 10

Good quality stones must

A. be durable
B. be free from clay
C. resist action of acids
D. all the above.

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Question 11

The rocks formed by gradual deposition, are called

A. sedimentary rocks
B. igneous rocks
C. metamorphic rocks
D. none of these.

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Question 12

Varnish is a transparent or semi-transparent solution of resinuous substances in

A. alcohol
B. linseed
C. turpentine
D. all the above.

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Question 13

In a mortar, the binding material is

A. cement
B. sand
C. surkhi
D. cinder.

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Question 14

If the furnace is provided with insufficient fuel at low temperatures, the type of pig iron produced, is called

A. Bessemer pig
B. Grey or foundry pig
C. White or forge pig
D. Mottled pig.

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Question 15

Bitumen felt

A. is used as water proofing material
B. is used as damp proofing material
C. is made from bitumen and hessian fibres
D. all the above.

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Question 16

Stainless steel contains

A. 18% of chromuim and 8% nickel
B. 8% of chromium and 18% of nickel
C. 12% of chromium and 36% of nickel
D. 36% of chromium and 12% of nickel.

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Question 17

The process of manufacturing steel by heating short lengths of wrought iron bars mixed with charcoal in fire clay crucibles and collecting the molten iron into moulds, is known as

A. Cementation process
B. Crucible process
C. Bessemer process
D. Open hearth process.

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Question 18

Vanadium steel is generally used for

A. railway switches and crossing
B. bearing balls
C. magnets
D. axles and springs.

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Question 19

Gniess is obtained from

A. igneous rocks
B. metamorphic rocks
C. sedimentary rocks
D. sedimentary metamorphic rocks.

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Question 20

Wrought iron contains carbon about

A. 1.5% to 5.5%
B. 0.5% to 1.75%
C. 0.1% to 0.25%
D. none to these.

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Question 21

Quartzite is a

A. metamorphic rock
B. argillaceous rock
C. calcareous rock
D. silicious rock.

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Question 22

The rocks which are formed due to cooling of magma at a considerable depth from earth's surface are called

A. Plutonic rocks
B. Hypabyssal rocks
C. Volcanic rocks
D. Igneous rocks.

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Question 23

Bitumen in

A. solid state, is called asphalt
B. semi fluid state, is called mineral tar
C. fluid state, is called petroleum
D. all the above.

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Question 24

Polymerization helps to improve the property of

A. strength
B. rigidity
C. elasticity
D. all of these.

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Question 25

Asbestos cement

A. is brittle
B. warps due to changes in humidity
C. strength is lowered when saturated by water
D. all the above.

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Question 26

The main constituent of fly-ash, is

A. aluminium oxide
B. silica
C. ferrous oxide
D. All of these.

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Question 27

For preparing porcelains, the clay should be

A. sufficiently pure
B. of high degree of tanacity
C. of good plasticity
D. All the above.

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Question 28

Kaolin is chemically classified as

A. metamorphic rock
B. argillaceous rock
C. calcareous rock
D. silicious rock.

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Question 29

Pick up the hypabyssal rock from the following:

A. Granite
B. Dolerite
C. Basalt
D. All the above.

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Question 30

The plastics made from cellulose resin

A. are as clear as glass
B. are tough and strong
C. possess excellent electrical properties
D. All the above.

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Question 31

Ultimate strength to cement is provided by

A. Tricalcium silicate
B. Di-calcium silicate
C. Tri-calcium aluminate
D. Tetra calcium alumino ferrite.

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Question 32

Galvanising means covering iron with a thin coat of

A. tin
B. zinc
C. glaze
D. coal tar.

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Question 33

In the cement the compound quickest to react with water, is

A. Tricalcium aluminate
B. Tetra-calcium alumino-ferrite
C. Tricalcium silicate
D. Dicalcium silicate.

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Question 34

Pick up the polymineralic rock from the following:

A. Quartz sand
B. Pure gypsum
C. Magnesite
D. Granite

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Question 35

For melting one tonne of cast iron

A. 700 m3 air is required
B. 20 kg limestone is required
C. one quintal coke is required
D. all the above.

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Question 36

The clay to be used for manufacturing bricks for a large project, is dugout and allowed to weather throughout

A. the monsoon
B. the winter
C. the summer
D. none of these.

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Question 37

Sewer pipes are made of

A. earthen ware
B. stone ware
C. refractory clay
D. terracota

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Question 38

Sand stone is

A. sedimentary rock
B. metamorphic rock
C. igneous rock
D. volcanic rock.

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Question 39

The variety of pig iron used for the manufacture of steel by Bessemer process, is

A. Bessemer pig
B. Grey pig
C. White forge pig
D. Mottled pig.

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Question 40

Pick up the correct statement from the following:

A. In stone arches, the stones are placed with their natural beds radial
B. In cornices, the stones are placed with their natural beds as vertical
C. In stone walls, the stones are placed with their natural beds as horizontal
D. All the above.

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Question 41

In the method of condensation polymerization,

A. low-molecular substances are removed from the high molecular substance
B. the reaction proceeds with an evolution of ammonia
C. the reaction proceeds with an evolution of hydrogen chloride
D. all the above.

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Question 42

Elastomers can extend upto

A. five times their original dimensions
B. seven times their original dimensions
C. ten times their original dimensions
D. three times their original dimensions.

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