WorksheetsDay 68-Dec 2-worksheet-BtechPopulation forecasting,watersource
Total questions: 15
Worksheet time: 12mins
Infiltration galleries are constructed at shallow depths mainly to
increase hydrostatic pressure
tap water-bearing strata horizontally
collect only surface runoff
reduce evaporation losses
Which type of spring gives the most uniform yield?
Gravity
Surface
Artesian
Depression
Strainer type tube wells are unsuitable for
Coarse gravel strata
Clayey soils
Hard rock
Fine sandy strata
Flow pattern in cavity-type tube wells is
Radial
Spherical
Laminar
Turbulent
Open wells allow water withdrawal only at
Hydrostatic velocity
Critical velocity of soil
Terminal velocity
Optimum seepage rate
The increase in population from decade to decade is assumed constant in the (a) method.
Percentage increase in population from decade to decade is assumed constant in the (a) method.
When the city is heading towards saturation and growth rate is decreasing, the suitable forecasting method is (a) .
The wells used to draw water from polluted streams are called (a) wells.
Deep wells rest on an impervious layer known as the ________ layer.
mota
aquitard
claypan
bedrock
Ranney wells are connected to a central sump called (a) well.
Slotted type tube wells require surrounding (a) pack.
A village has a population of 4,000. Domestic demand = 135 Lpcd. Find total daily demand.
(a)
Population: 1991 = 20,000; 2001 = 26,000. Find population in 2011 using the Arithmetic Increase Method.
(a)
An open well yields 3 L/s. Find water supplied in 1 hour.
(a)
