232.  Vicat apparatus is used for
A. fineness test
B. consistency test
C. test for setting time
D. test for tensile strength

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233.  The cement becomes useless if its absorbed moisture content exceeds
A.1%
B.2%
C.3%
D.5%

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234.  The size of fine aggregates does not exceed
A. 275 min
B. 300 mm
C. 375 mm
D. 4 75 mm

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235.  Mloo grade of concrete approximates
A. 1: 3: 6 mix
B. 1 :1 :2 mix
C. 1: 2: 4 mix
D. 1:15 : 3 mix

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236.  M150 grade of concrete approximates
A. 1: 3: 6 mix
B. 1: 15 : 3 mix
C. 1: 2: 4 mix
D. 1: 1 : 2 mix

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237.  Slump test of concrete is a meausre of its
A. consistency
B. compressive strength
C. tensile strength
D. impact value

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238.  ISI has specified full strength of concrete after
A. 7 days
B. 14 days
C. 21 days
D. none of these

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