Civil Engineering MCQJE Level Civil Engineering
Particulate matter PM2.5 refers to particles with diameter less than:
Environmental EngineeringEnvironmental EngineeringMEDIUM
Choose the correct answer
A
250 micrometre
B
2.5 micrometre
C
2.5 centimetre
D
25 millimetre
Correct Answer
B. 2.5 micrometre
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PM2.5 is fine particulate matter capable of deep lung penetration.
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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.