As per IRC recommendations, the average level of illumination on important roads carrying fast traffic is
A. 10 lux
B. 15 lux
C. 20 lux
D. 30 lux
Answer:D
As per IRC recommendations, the average level of illumination on important roads carrying fast traffic is
A. 10 lux B. 15 lux C. 20 lux D. 30 lux