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Engineering :: Building Materials


11.  Limestone is physically classified as
A. stratified B. unstratified

12.  Moorum is a decomposed laterite and has deep brown or red colour.
A. Yes B. No

13.  Marble is an example of
A. aqueous rock B. metamorphic rock
C. sedimentary rock D. igneous rock

14.  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

15.  Granite is mainly composed of
A. quartz and mica B. felspar and mica
C. quartz and felspar D. quartz, felspar and mica

16.  Sandstone consists of
A. quartz and lime B. quartz and silica
C. quartz, lime and silica D. silica, lime and alumina

17.  Marble contains mostly lime and silica.
A. True B. False

18.  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. 170 to 200 MN/m2

19.  In order to dry the quarry sap of a freshly quarried slone, it should be exposed to open air for a period of
A. one month B. four months
C. six to twelve months D. two years

20.  A good building stone is one which does not absorb more than
A. 5% B. 10%
C. 15% D. 25%




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