engineering recuitment BARC Stipendiary Trainee Category I 2023 Mock Test Construction Materials and Management Building Component
In a good staircase, the pitch of the stair should _____.
1
never exceed 90° and should not be flatter than 45°
2
never exceed 60° and should not be flatter than 30°
3
never exceed 40° and should not be flatter than 25°
4
never exceed 60° and should not be flatter than 25°