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Building Materials

Building Materials
As per IS specifications, the maximum final setting time for ordinary Portland cement should be

10 hours
30 minutes
1 hour
6 hours

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Building Materials
Index number expressing the relative sizes of both coarse and fine aggregates, is called

None of these
Fineness modulus
Grading of aggregates
Proportioning of aggregates

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Building Materials
A badly mixed cement concrete results in

Segregation
Bleeding
Honey combing
None of these

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Building Materials
Which of the following cements contains maximum percentage of dicalcium silicate?

Ordinary Portland cement
Low heat cement
Rapid hardening cement
Sulphate resisting cement

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Building Materials
The pigment used in paints for corrosive resistance, is

Zinc white
Red lead
White lead
Ferrous oxide

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Building Materials
The initial setting time for ordinary Portland cement as per IS specifications should not be less than

30 minutes
600 minutes
10 minutes
60 minutes

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