Join 60,000+ competitive exam aspirants
Which colour is used to indicate the Mandatory sign?
Red
Yellow Amber
Blue
Green
Blue
Quick Summary: Practice and solve "Which colour is used to indicate the Mandatory sign?..." for Electrical - Economics for Engineers. The correct answer is Option C: Blue. Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.
Answer:
Option **(c) **