Question

In ribbed flooring, lateral ribs having the same width as that of longitudinal ribs are provided if the span exceeds ________

(a) 1 cm

(b) 1 m

(c) 3 cm

(d) 3 m

Answer 1

The correct choice is (d) 3 m

The best explanation: In ribbed flooring, lateral ribs having the same width as that of longitudinal ribs are provided if the span exceeds 3 m. These are provided at intervals between 1-3 m.