3. Workplace Ergonomics

Workplace Design — Quiz

Test your understanding of workplace design with 5 practice questions.

Practice Questions

Question 1

Which ergonomic principle aims to minimise user physical workload by ensuring that all frequently used controls and tools fall within the comfort reach zone of the user?

Question 2

An open‐plan office of 100 m² requires an average illuminance of 500 lux. Each luminaire provides 4000 lumens and has a maintenance factor of 0.8. How many luminaires are needed?

Question 3

A worker is exposed to 85 dB for 4 hours and 95 dB for 1 hour. What is the equivalent continuous noise level $L_{eq}$ over the 5-hour period?

Question 4

A private office has a volume of 60 m³ and requires 6 air changes per hour (ACH). What supply airflow rate $Q$ in litres per second (L/s) is needed?

Question 5

In thermal comfort assessment, what is the mean radiant temperature (MRT) for a room with 10 m² of floor at 22 °C and 20 m² of walls at 28 °C, assuming equal view factors?