Q.1) Optimum depth of kor watering for rice is –
A) 135 mm
B) 165 mm
C) 190 mm
D) 215 mm
Option (C)
Q.2) The “Outlet Discharge Factor” is the duty at the head of –
A) Main canal
B) Branch canal
C) Water course
D) Distributory
Option (C)
Q.3) The ratio of the quantity of water stored in the root zone of the crops to the quantity of water actually delivered in the field is known as –
A) Water Conveyance Efficiency
B) Water Application Efficiency
C) Water Use Efficiency
D) None of the above
Option (B)
Q.4) The runoff increases with –
A) Increase in intensity of rain
B) Increase in infiltration capacity
C) Increase in permeability of soil
D) All of the above
Option (A)
Q.5) For a flood control reservoir, the effective storage is equal to –
A) Useful storage – Valley storage
B) Useful storage + Surcharge storage
C) Useful storage + Surcharge storage + Valley storage
D) Useful storage + Surcharge storage – Valley storage
Option (D)
Q.6) Total force due to wave action on a gravity dam acts at a height of –
- A) hw2 above the reservoir surface
- B) 5/4 hw above the reservoir surface
- C) 3/8 hw above the reservoir surface
- D) 2/3 hw above the reservoir surface
Option (C)
Q.7) The most suitable material for the central impervious core of a zoned embankment type dam is –
A) Clay
B) Coarse sand
C) Silty clay
D) Clay mixed with fine sand
Option (D)
Q.8) For the upstream face of an earthen dam, the most adverse condition for stability of slope is –
A) Sudden drawdown
B) Steady seepage
C) During construction
D) Sloughing of slope
Option (A)
Q.9) A straight glacis type fall with a baffle platform and a baffle wall is called –
A) Vertical dropfall
B) Glacis fall
C) Montague type fall
D) Inglis fall
Option (D)
Q.10) The aqueduct or super passage type of works are generally used when –
A) High flood drainage discharge is small
B) High flood drainage discharge is large and short lived
C) High flood drainage discharge is large and continues for a long time
D) None of the above
Option (C)
Q.11) A hyetograph is a graphical representation of :
A) Rainfall intensity vs time
B) Rainfall depth vs time
C) Discharge vs time
D) Cumulative rainfall vs time
Option (A)
Q.12) A unit hydrograph has one unit of :
A) Rainfall duration
B) Rainfall excess
C) Time base of direct runoff
D) Discharge
Option (B)
Q.13) Muskingham method of flood routing is :
A) Reservoir routing method
B) Channel routing method
C) Hydraulic method of flood routing
D) None of the above
Option (B)
Q.14) The flow-mass curve is graphical representation of :
A) Cumulative discharge and time
B) Discharge and percentage probability of flow being equaled or exceeded
C) Cumulative discharge, volume and time in chronological order
D) Discharge and time in chronological order
Option (C)
Q.15) The double mass analysis is adopted to :
A) Estimate the missing rainfall data
B) Obtain intensities of rainfall at various duration
C) Check the consistency of data
D) Obtain the amount of storage needed to maintain a demand pattern
Option (C)
Q.16) Cross-regulators in main canals are provided to :
A) Regulate water supply in the off taking channel
B) Regulate water supply in the main channel
C) Regulate excessive flood water
D) Head up water for adequate supply into the off-taking channel
Option (D)
Q.17) The sequent peak algorithm is a method used in the estimation of the –
A) Maximum possible precipitation in a basin
B) Maximum possible flood peak in a catchment
C) Minimum evapotranspiration from a catchment
D) Minimum reservoir capacity needed to meet a given demand
Option (D)
Q.18) The flow duration curve is a plot of :
A) Accumulated flow against time
B) Discharge against time in chronological order
C) The base flow against the percentage of time the flow is equalled or exceeded
D) The stream discharge against the percentage of time the flow is equalled or exceeded
Option (D)
Q.19) In which of the following section a breast wall is usually provided :
A) Main canal
B) Under sluice
C) Head regulator
D) Weir
Option (C)
Q.20) Mean precipitation over an area is best obtained from gauged amounts by :
A) Arithmetic mean method
B) Theissen method
C) Linearly interpolated isohyetal method
D) Orographically weighted isohyetal method
Option (D)
