Irrigation and Hydraulic structures (ISE-1)

Isohyets are the imaginary lines joining the points of equal

• • Pressure

• Height

• Humidity

• Precipitation

The rate of rainfall for successive 10 minute periods of a 60 minute duration storm, are shown in the figure. If the value of φ_index is 3 cm/hour, the runoff will be

• 2 cm

• 2 mm

• 3 cm

• 3 mm

A hyetograph is a graphical representation of.........

• •  Rainfall intensity and time

• •  Rainfall depth and time

• • Discharge and time

• • Cumulative rainfall and time

Phytometer method is generally used for the measurement of.........

• Transpiration

• Interception

• Evaporation

• Rainfall

Knowledge of hydrology is necessary for civil engineers for

• Flood control works

• Designing and construction of bridges and culverts

• Designing and construction of irrigation structures

• All the above

Pick up correct statement from the following

• The air from central portion of cyclone's gets lifted to cause precipitation

• The air from entire surface of the cyclones gets lifted for causing precipitation

• The air from outer portion of cyclones gets lifted for causing precipitation

• None of the above

Dickens’ formula for high flood estimate, is useful only for the catchments in

• • Southern India

• • Northern India

• • Eastern India

• • Western India

In India the recording type rain gauge generally used, is..........

• 1. Weighing type

• 1. Tipping type

• 1. Simon type

• 1. Siphon type

In India, rain fall is generally recorded at..........

• 8 am

• 12 Noon

• 10 am

• 8 pm

In India, which of the following is adopted as standard recording rain-gauge?

• 1. Symon's rain-gauge

• 1. Tipping bucket type

• 1. Natural syphon type

• 1. Weighing bucket type