Gypsum is a
Gypsum CaSO4⋅ 2H2O Used (1-3%) to retard the quick setting of cement.
Which of the following sedimentary rocks changes into quartzite by metamorphic action?
sand stone to quartzite limestone to marble shale to slate
Which of the following represents a metamorphic rock? i) slate. ii) shale. iii) quartzite. Aswer the correct
metamorphic - quartzite, marble, slate, phyllite, schist, gneiss, laterite. shale is sedimentary rock
Quartzite is a
Siliceous rock - granite, sandstone, quartzite Argillaceous rock - slate, kaolin, laterite. Calcareous rock - lime stone, marble
Which of the following is a mineral?
Slate is formed by metamorphic action on
Sandstone is a (i) Sedimentary rock. (ii) Aqueous rock (iii) Silicious rock
Which of the following is a rock?
Gypsum is rock and quartz & mica are mineral
Based on the following rocks and minerals, select the correct statement. Quartz, shale, basalt, granite, marble, gypsum, mica
A heavy stone is suitable for
heavy stone needs large force aginst gravity so best suitable for retaining structure.
The stone suitable for rubble masonry should be
rubble masonry doesnt need smooth dressing, so hard stone is used to bear heavy load.
Which of the following metarmorphic rock has the most weather resisting characteristics?
A good building stone should not absorb water more than
good building stone should not absorb water more than 5% while more than 10% is rejected.
Which of the following has more fire resisting characteristics?
Jumper is a tool used for
The important test to be conducted on a stone used in docks and harbour is
Water density play important role in docks so weight test is done
The predominant constituent which is responsible for strength in granite is
Granite is not suitalble for ordinary building purpose because
Granite is costly as well not so fire resisting material above a certain limit.