Building Materials Stone and Rock Previous year MCQ Questions :
1. Which one of the following metamorphic rocks has more weathering resistance characteristics?
(a) Lime stone
(b) Quartzite
(c) Phyllite
(d) Slate
Ans.(b) Quartzite is a hard, non-foliated meta morphic rock which was originally sand stone which is converted into quartzite through heating & pressure. Quartzite has a very good weathering resistance, hardness & crushing strength.
2. Granite is example for:
(a) Igneous rock
(b) Metamorphic rock
(c) Sedimentary rock
(d) Calcareous rock
Ans.(a) Igneous Rock
3. Marble is an example of ..........
(a) aqueous rock
(b) sedimentary rock
(c) metamorphic rock
(d) igneous rock
Ans. (c): Metamorphic rocks - Metamorphic rocks are formed igneous or sedimentary rocks as a result of the action of the earth movement, temperature changes, liquid pressure etc. Exp. - Marble, Gneiss, quartzite etc.
4. Jumper is a tool used for..........
(a) testing of stones
(b) quarrying of stones
(c) dressing of stones
(d) none of the above
Ans. (b) : Jumper - It is used to make blast hole and more effective in boring a nearly vertical hole or used in quarrying of stone. Some of the quarrying tools are jumper, wedge, pin, hammer, dipper or scraping spoon, tamping bar, priming needle, crow bar.
5. The solidification of molten magma within the earth crust results in the formation of
(a) Sedimentary rocks
(b) Metamorphic rocks
(c) Basalt and traps
(d) Granite
Ans.(d) Granite
6. Gneiss is chemically classified as a/an:
(a) Aqueous rock
(b) Metamorphic rock
(c) Sedimentary rock
(d) Siliceous rock
Ans.(d) siliceous rock
7. Granite is mainly composed of
(a) quartz and mica only
(b) felspar and mica only
(c) quartz and felspar only
(d) quartz, felspar and mica
Ans.(d) quartz, felspar and mica
8. The rocks having alumina or clay as their major constituents are known as:
(a) Siliceous rocks
(b) Calcareous rocks
(c) Igneous rocks
(d) Argillaceous rocks
(e) Sedimentary rocks
Ans.(d) argillaceous rocks
9. Smith's test is performed to determine:
(a) Durability
(b) Wear
(c) Crushing strength well
(d) Soluble minerals
Ans.(d) soluble minerals
10. Which of the following test is used to determine the rate of wear of stones?
(a) Crushing test
(b) Abrasion test
(c) Attrition test
(d) Impact test
Ans.(c) Attrition test