GATE CE 2022 Toppers Quiz 4

A hydraulically efficient trapezoidal channel section has a uniform flow depth of 2m. The bed width (expressed in m) of the channel is __________ .

What is the safe stopping sight distance for a design speed of 70 km/h for two way traffic on a single lane road? The reaction time of driver is 2.5 sec and longitudinal friction is 0.35

A series of line of sight relay stations needs to be set up for data communication. What will be minimum required height of the antenna in meters if 40 stations are needed to cover a distance of 2019 km. Assume the effect of atmospheric refraction to be negligible.

A rectangular RC beam of concrete grade M20 is 300 mm wide and 550 mm deep (effective depth). It is provided with 4 numbers of 20 mm diameter mild steel. Take _cbc = 7N/mm² and _st = 140N/mm² and m = 13. Determine section is

400mm diameter and 8m long piles are used as a foundation for a column in a uniform deposit of clay whose unconfined compressive strength is 90 kN/ and adhesion factor = 0.9. There are 4 piles arranged in a square pattern of 2 x 2. Spacing between piles is 900mm (center to center). The ratio of ultimate load of pile group (considered as block) to the ultimate load of individual pile is _________.