As per NBC-2005, in a school, no. of w.c. required for boys are
- A1 per 20
- B1 per 25
- C1 per 30
- D1 per 40Correct
Solution
Concept
Required number of WC for boys in schools
Formula
NONE
Step-by-step solution
1. NBC-2005 provides sanitation requirements for educational occupancy based on student population. 2. Sanitation standards specify water closet fixture ratios separately for male and female pupils. 3. For boys in schools, NBC-2005 mandates 1 WC per 40 students. Answer: D
Explanation
According to NBC 2005 standards, sanitation facilities in educational institutions are determined based on student occupancy. For male students in schools, the code mandates providing at least 1 water closet for every 40 boys. Therefore, 1 per 40 is the correct requirement.
Why the other options are wrong
A) 1 per 20 represents an over-allocation of water closets beyond the required NBC norm for boys. B) 1 per 25 is typically specified for drinking water facilities rather than boys' w.c. count. C) 1 per 30 provides more fixtures than the minimum ratio mandated by NBC-2005 for boys.
Shortcut
Boys' W.C. requirement in schools is 1 per 40 students.
Common mistake
Confusing the boy-to-WC ratio (1 per 40) with the higher frequency required for urinals (1 per 20) or WC requirements for girls.
Correct answer: D) 1 per 40