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Building Materials | MCQ – 01 | 20 MCQs

Posted on June 28, 2021February 21, 2023 By Civil Vedant

Q.1) The rocks formed due to solidification of molten mass lying below or above the earth surface are called :

A) Aqueous rock

B) Sedimentary rocks

C) Metamorphic rocks

D) Igneous rocks

Answer

Option (D)

Q.2) The sedimentary rocks are formed due to :

A) Solidification of molten mass lying below or above the earth surface

B) Gradual deposition of materials like sand, clay etc.. Generally by setting water

C) Alteration of original structure under heat and excessive pressure

D) None of the above

Answer

Option (B)

Q.3) Granite is an example of :

A) Aqueous rocks

B) Sedimentary rocks

C) Metamorphic rocks

D) Igneous rocks

Answer

Option (D)

Q.4) Igneous rock has :

A) Crystalline, glossy or fused texture

B) Foliated structures which is hard and durable

C) Layers of different composition, colour and structure

D) None of the above

Answer

Option (A)

Q.5) Laterite is chemically classified as :

A) Calcareous rock

B) Argillaceous rock

C) Silicious rock

D) Metamorphic rock

Answer

Option (B)

Q.6) Which of the following is an example of silicious rock?

A) Granite

B) Gneiss

C) Quartzite

D) All of these

Answer

Option (D)

Q.7) Slate in the form of tiles is used :

A) For paving

B) As road metal

C) As an excellent roof covering material

D) For the manufacture of cement

Answer

Option (C)

Q.8) Granite is mainly composed of :

A) Quartz and Mica

B) Felspar and Mica

C) Quartz and Felspar

D) Quartz, Felspar and Mica

Answer

Option (D)

Q.9) The compressive strength of Granite is :

A) 50 to 70 MN/m2

B) 70 to 130 MN/m2

C) 130 to 170 MN/m2

D) 150 to 200 MN/m2

Answer

Option (B)

Q.10) In order to dry the quarry sap of a freshly quarried stone, it should be exposed to open air for a period of :

A) 1 month

B) 4 months

C) 6 to 12 months

D) 2 years

Answer

Option (C)

Q.11) A fine-grained granite :

A) Offers higher resistance to weathering

B) Can be easily polished and worked

C) Is used for exterior facing of buildings

D) All of these

Answer

Option (D)

Q.12) A limestone found in seams of great thickness in non-crystalline texture with earthy appearance is called :

A) Granular limestone

B) Compact limestone

C) Magnesium limestone

D) Kankar

Answer

Option (B)

Q.13) A limestone containing about 30% of alumina and silica is called :

A) Granular limestone

B) Compact limestone

C) Magnesium limestone

D) kankar

Answer

Option (D)

Q.14) When quarrying is to be done in hard stone and compact rocks, the usual method of quarrying is :

A) By wedging

B) By channeling machine

C) By blasting

D) All of the above

Answer

Option (C)

Q.15) The dressing of stone is done :

A) Immideatly after quarrying

B) After seasoning

C) After 3 months of quarrying

D) Just before building

Answer

Option (A)

Q.16) The crushing strength of a stone depends upon its –

A) Texture

B) Specific Gravity

C) Workability

D) Texture and Specific Gravity

Answer

Option (D)

Q.17) The percentage of alumina in a good brick clay should vary from :

A) 20 to 30%

B) 30 to 40%

C) 40 to 50%

D) 50 to 60%

Answer

Option (A)

Q.18) Excess of alumina in the clay –

A) Makes the brick brittle and weak

B) Makes the brick crack and warp on drying

C) Changes colour of the brick from red to yellow

D) Improves impermeability and durability of the brick

Answer

Option (B)

Q.19) The alkaline salt present in the bricks, absorbs moisture from the air which on drying –

A) Leaves pores and makes the bricks porous

B) Leaves high powder deposit on the brick

C) Makes the brick brittle and weak

D) All of the above

Answer

Option (B)

Q.20) The commonly used extender in a paint is :

A) Barium Sulphate

B) Gypsum

C) Naptha

D) All of the above

Answer

Option (D)

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Materials Tags:building materials questions, civil engineering questions and answers for competitive exams pdf, civil engineering questions mcq, gate civil engineering questions, general civil engineering questions & answers, objective civil engineering, psc civil engineering questions

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