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GATE 2023 Building Materials & Construction Management Quiz 36

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Question 1

Select the correct option. List I contains type of steel/iron forms and List II contains % carbon in steel.
List I
P. Cast Iron
Q. Mild Steel
R. High carbon steel
S. Wrought Iron
List II
1) <0.15%
2) 2%-4%
3) 0.15%-0.25%
4) 0.6%-1.1%

Question 2

The only manufacturing process of steel in which sulphur is effectively reduced is?

Question 3

Which acid is used to distinguish the steel and the wrought iron on the field?

Question 4

Which of the following occurs after raising the C3A content in cement?

Question 5

Which of the following are correctly matched?

1) Consistency Test: Plunger of 10mm size

2) Initial setting time test: Square needle of size 1mm

3) Final setting time test: Annular collar of 5mm

Question 6Multiple Correct Options

Which of the following statements are correct regarding field tests of cement?
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