Civil Engineering MCQJE Level Civil Engineering
Site problem: A soil has liquid limit 45% and plastic limit 25%. Plasticity index is:
Soil MechanicsGeotechnical Engineering and FoundationHARD
Choose the correct answer
A
1.8 %
B
70 %
C
20 %
D
55.6 %
Correct Answer
C. 20 %
AI Detailed Explanation & IS Code Reference
Unlock the reasoning, formula path and code-linked notes inside your student dashboard.
Reinforced concrete design using IS 456:2000. For singly reinforced beams: Mu = 0.87 fy Ast z, where z is lever arm. Solving for Ast gives 20 %.
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 RRB JE Civil & Allied Engineering CBT-2 Full Mock Test Series. Full tests include timed attempts, rank comparison and subject-wise analysis.