Civil Engineering MCQJE Level Civil Engineering
For 1:4:8 concrete, total proportion is:
Estimation and CostingEstimating, Costing and Construction ManagementHARD
Choose the correct answer
A
8
B
4
C
12
D
13
Correct Answer
D. 13
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Concrete mix 1:4:8 means cement : fine aggregate (sand) : coarse aggregate (gravel) in proportions 1:4:8. Total parts = 1 + 4 + 8 = 13. Each ingredient's fraction: cement = 1/13, fine agg = 4/13, coarse agg = 8/13. Nominal mixes (IS 456): M10 = 1:3:6, M15 = 1:2:4, M20 = 1:1.5:3, M25 = 1:1:2.
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This MCQ belongs to SSC JE Civil Paper-I Technical Mock Test Series. Full tests include timed attempts, rank comparison and subject-wise analysis.