Out of the following, which may be termed as an unstratified Rock?
Chemically, marble is known as
Plaster of Paris is obtained by calcining.
A stone is rejected if it absorbs water more than.
The water absorption for good brick should not be more than:
Clay bricks are made of earth having:
Number of modular bricks required for one cubic meter of brick masonry are;
The plasticity to mould bricks in suitable shape is contributed by:
The crushing strength of a first class brick is:
A 1st class brick immersed in water for 24 hours, should not absorb water (by weight) more than
Pickup the correct statement
For the manufacture of Portland cement, the proportions of.raw materials used are
Compound of cement which reacts immediately with water and sets first is
The length of Vicat plunger in Vicat's apparatus varies from
Specific gravity of OPC is generally
In random rubble masonry sort I, face stones are:
Gypsum is added to cement
The concrete having slump of 6.5 cm is said to be
Separation of water or water sand cement from a freshly mixed concrete is known as
Los angeles machine is used to test the aggregate for
Grading of sand causes great variation in:
The correct proportion of ingredients of concrete depends upon:
The ratio of various ingredients (cement, sand, aggregates) in concrete of grade M 200, is
In the question, there should be M20 instead of M200
Explanation : It depends on design mix. It can also be nominal mix. For, M20, it can be in the ratio of 1:1.5:3 with water cement ratio of 0.5.
To prevent segregation, the maximum height for placing concrete, is
While compacting the concrete by a mechanical vibrator, the slump should not exceed