Quiz 2 (Engineering Hydrology)

A rain gauge recorded 125 mm of precipitation. It was found later that the gauge was inclined at an angle of 20 degree with the vertical. What is the actual precipitation.

• 125 mm

• 120 mm

• 133 mm

• 140 mm

Six rain gauges were installed in a relatively flat area and storm precipitation from these gauges was recorded as 3.7, 4.9, 6.8, 11.4, 7.6 and 12.7 cm respectively from gauges 1, 2, 3, 4, 5, and 6. what is the average precipitation over the catchment.

• 8 cm

• 7.5 cm

• 7.0 cm

• 7.85 cm

From a 50 mm rainfall 35 mm of runoff is generated that was measured at stream gauging station. If infiltration losses are estimated as 10 mm, determine the evaporation loss assume there is no storage in system.

• 15 mm

• 5 mm

• 10 mm

• 25 mm

The rainfall during a particular day was 10 mm. Class - A Pan is installed in this area. If water added to Pan on that particular day was 12 mm, find the evaporation. Take the Pan coefficient as 0.60.

• 13 mm

• 12 mm

• 10 mm

• 20 mm

What volume is represented by 3.5 cm of run off from a basin of 650 Square Kilometers. Give answer in cubic meters and Hectare-meter.

• 30000 H-m

• 2275 H-m

• 2500 H-m

• 3000 H-m