Civil Engineering MCQAE Level Civil Engineering
For a soil mass, volume of voids is 0.5 m³ and total volume is 1.0 m³. Porosity is
Foundation EngineeringOriginal practiceMEDIUM
Choose the correct answer
A
75.0%
B
25.0%
C
100.0%
D
50.0%
Correct Answer
D. 50.0%
AI Detailed Explanation & IS Code Reference
Unlock the reasoning, formula path and code-linked notes inside your student dashboard.
Porosity n = (Vv / V) × 100%, where Vv is volume of voids and V is total volume of soil mass. n = (0.5 / 1.0) × 100 = 50.0%. Porosity indicates the fraction of total soil volume occupied by voids (air + water). Typical values: gravel 25–40%, sand 30–45%, clay 40–60%.
ScoreCardAI links this solution with subject, topic and difficulty signals so your scorecard can identify weak areas after a full mock test.
Concept shortcut
IS/IRC reference
Common trap
Practice more Civil Engineering questions
This MCQ belongs to AE Level Premium Test Series. Full tests include timed attempts, rank comparison and subject-wise analysis.