OUTCOME NO.6 ASSESSMENT

The proportion of M15 concrete

• 1:2:3

• 1:2:4

• 1:1.5:3

• all the above

Slaked lime is

• Calcium hydroxide

• Calcium oxide

• Calcium carbonate

• all the above

One bag of cement weighs

• 25 kg

• 50 kg

• 30 kg

• 15 kg

Most widely used kiln in India is

• Hoffman's kiln

• Tunnel kiln

• Bull's Trench Kiln

• none of these

Vicat Apparatus is used for testing

• consistency

• initial setting time

• final setting time

• all the above

Chemically granite is

• calcareous rock

• silicious rock

• argillaceous rock

• none of these

Toughness of stone is determined by

• impact test

• hardness test

• attrition test

• smith's test

Percentage of Alumina in good brick earth varies from

• 50-60

• 5-10

• 20-30

• 10-15

Which of the following is not a grade of OPC?

• 33

• 43

• 53

• 63

Apparatus used for determining soundness of cement is

• Vicat apparatus

• Le Chatelier's apparatus

• Slump Test apparatus

• all the above