'Electromagnetic flowmeter' is suitable for measuring flow of:
Choose the correct answer
Non-conductive fluids like oil and air
Electrically conductive fluids (sewage, slurries, chemicals) — measures EMF induced by Faraday''s law
Only gas at high pressure
Very pure distilled water only
Correct Answer
B. Electrically conductive fluids (sewage, slurries, chemicals) — measures EMF induced by Faraday''s law
AI Detailed Explanation & IS Code Reference
Unlock the reasoning, formula path and code-linked notes inside your student dashboard.
EM flowmeter (Faraday''s law): conductive fluid flowing through magnetic field generates EMF = B×V×D. V = EMF/(B×D). Only works for electrically CONDUCTIVE fluids (minimum conductivity ~5 μS/cm). Best for: slurries, corrosive fluids (sewage, acids, chemicals, food processing). Not suitable for: oil, air, pure water (very low conductivity). No moving parts, no pressure drop.
ScoreCardAI links this solution with subject, topic and difficulty signals so your scorecard can identify weak areas after a full mock test.
Practice more Civil Engineering questions
This MCQ belongs to JE Level Premium Test Series. Full tests include timed attempts, rank comparison and subject-wise analysis.