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For the following questions answer them individually
Mild steel used in RCC structures conforms to
IS : 432
IS : 1566
IS : 1786
IS : 2062
Which of the following types of lime is used for plastering and white washing?
Quick lime
Slaked lime
Hydraulic lime
Fat lime
Which of the following acts as retarder for the concrete?
Calcium chloride
Calcium lignossulphonate
Calcium stearate
Aluminium powder
Identify the wrong statement
Bulking of sand can go up to 40%
Bulking of sand is maximum at 4.6% moisture content.
Bulking of sand is considered in weight batching of concrete mix.
Bulking of sand occurs due to free moisture film formation over sand grain
Strength based classification of bricks made on the basis of
IS : 3101
IS : 3102
IS : 3495
IS : 3496
In paints, methylated spirit, naphtha and turpentine are used as
Base
Binder
Solvent
Extender
Coarse sand has a fineness modulus the range of
2.2 - 2.4
2.4 - 2.6
2.6 - 2.9
2.9 - 3.2
Under heat and pressure, granite can transform into
quartize marble
marble
slate
gneiss
Aluminium is anodized to protect it from weathering effect by forming surface coat of
Aluminium carbide
Aliminium barate
Aluminium oxide
Red lead
Quartize and marble are by nature
volcanic
plutonic
sedimentary
metamorphic
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