TASCO Exit Exam • Set 3 Question 12 of 30
What is Time Weighted Average?
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Direct Answer
Option A: Averaging all the exposure times for a time period 8 hours
Time Weighted Average (TWA) represents the average concentration of a substance to which a person may be safely exposed over a specified time period, typically 8 hours, without suffering long-term health effects.
All Options
A
Averaging all the exposure times for a time period 8 hours
(Correct Answer)
B
Highest exposure time
C
Short Term exposure time
D
Exposure time
Detailed Explanation & Context
Time Weighted Average (TWA) represents the average concentration of a substance to which a person may be safely exposed over a specified time period, typically 8 hours, without suffering long-term health effects.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Advanced Training for Oil Tanker Cargo Operations (TASCO).
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