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WorksheetsCIVILWAR DAY 25 KWA (HYDROLOGY,DEVELOPMENT OF SOLIDS)
Total questions: 10
Worksheet time: 5mins
In a hydrograph, the rising limb becomes steeper when:
Time of concentration is very high
Catchment is heavily forested
Infiltration and depression storage are low
Storm duration is less than base period
For the same rainfall depth, which basin will produce lower peak discharge but larger duration of runoff?
Small & pan-shaped catchment
Small & steep catchment
Large fern-leaf type catchment
Circular catchment with short travel time
Which of the following is the most correct conceptual reason why base period is slightly less than crop period?
Final stage of crop growth needs no water
Drying period before harvest is essential
Base period is counted from first watering to last watering only
Evapotranspiration stops after maturity
Two catchments of equal area receive equal rainfall. Catchment-A has a higher infiltration loss and lower distribution coefficient, whereas Catchment-B has lower infiltration loss and higher distribution coefficient. Which will produce a sharper peak runoff?
Catchment A
Catchment B
Both same
Depends on base period
The unit hydrograph concept assumes:
Uniform rainfall rate but variable distribution
Direct runoff is linearly proportional to rainfall excess
Peak discharge depends only on delta
Base flow varies sinusoidally with time
A cone is cut by an oblique plane that is neither parallel to the base nor perpendicular to the axis. The true cut face will be:
Circle
Ellipse
Parabola
Hyperbola
During development of a prism resting on one of its longer rectangular faces, a plane cuts it at an angle to its base. Which measurement is essential to mark the cut correctly in development?
Apparent length of edges
True length of edges
Length of axis
Slant height from base
The stretch-out length for the development of a right circular cone is calculated using:
π × base radius
2π × base radius
θ × slant height
slant height ÷ base radius
A frustum is cut from a pyramid using an inclined plane. Which of the following is correct for its development?
All lateral edges appear equal
Top face is identical to the base
True edge lengths must be transferred individually
Only radial line method is possible
A cylinder is cut by a plane inclined to its axis. In its development, the curve formed by the cut appears as:
Straight line
Circular arc
Elliptical-like sinusoidal curve
Hyperbolic profile
