1 Critical depth for a flow rate of 5m2 /s per unit width in an open rectangular channel is (a) 1.357m (c) 2.50m (b) 1.640m (d) none of these 2 The nature of flow for a discharge of 2.5m3 /s through a...

1 Critical depth for a flow rate of 5m2 /s per unit width in an open rectangular channel is

(a) 1.357m (c) 2.50m

(b) 1.640m (d) none of these

2 The nature of flow for a discharge of 2.5m3 /s through a rectangular open channel of bottom width 1m and depth 5m is

(a) critical (c) subcritical

(b) supercritical (d) depends upon the nature of fluid