Building Materials and Construction - Interview Questions | Exam2Win

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21. Which of the following represents a metamorphic rock? i) slate ii) shale iii) quartzite The correct answer is

A. only (iii)

B. both (i) and (iii)

C. both (ii) and (iii)

D. all (i), (ii) and (iii)

Explanation: ANSWER : : both (i) and (iii) Explanation :

22. Which of the following sedimentary rocks changes into quartzite by metamorphic action ?

A. sand stone

B. lime stone

C. shale

D. gypsum

Explanation: ANSWER : : sand stone Explanation :

23. Based on the following rocks and minerals, select the correct statement, quartz, shale, basalt, granite, marble, gypsum, mica

A. basalt and marble are the only metamorphic rocks

B. there is no sedimentary rock

C. granite is the only igneous rock

D. quartz and mica are minerals

Explanation: ANSWER : : quartz and mica are minerals Explanation :

24. Granite is not suitable for ordinary building purpose because

A. it can not be polished

B. it is not a fire proof material

C. it is costly

D. it has less crushing strength

Explanation: ANSWER : : it is costly Explanation :

25. The preparation of surface of stone to obtain plain edges or to obtain stones of required size and shape is known as

A. quarrying of stones

B. blasting of stones

C. seasoning of stones

D. dressing of stones

Explanation: ANSWER : : dressing of stones Explanation :