Simple Questions Q31-Q40 – Water Resources Engineering Exam

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31) Is the below statement CORRECT or INCORRECT?

“The assessment of the irrigation demand of crops is essentially based on the assessment of transpiration. Since the use of water in Cyprus, as in many other countries, is the largest portion of the total water demand, the importance of accurate estimate of perspiration becomes apparent in water resources management, as well as in studies construction and operation of water projects. “

32) The mean annual rainfall in Cyprus is 50 cm (standard deviation SD = 15). What is the probability that the annual rainfall in 2021 will be less than 35 cm?

  • 10 %
  • 16 %
  • 7,5 %
  • 2,5 %
Probability shown visually on normal distribution-deviation

33) Which is the most widely used method of estimating evapotranspiration:

  • Penman-Monteith method
  • Sarpkaya’s method
  • Blaney-Criddle method

34) How can we estimate the demand for irrigation water at certain agricultural area?

  • We calculate the potential evaporation of the area to be irrigated
  • It is about 10 L/m2

35) The dimensioning of the water pipeline from a dam to a city is based on:

  • The average peak day supply
  • The average monthly discharge
  • The peak hourly demand
  • None of the above

36) Which of the following software can NOT be used to model water systems:

  • Hydronomeas
  • MODSIM
  • NespI

37) Hydronome software can be used for:

  • Strategic studies of water resources systems management
  • Hydrosystem operation business plans
  • Planning of new projects (at the hydraulic scale)
  • Investigation of emergency scenarios (eg fault)
  • All of the above

38) In which of the following hydrometeorological conditions it possible for the actual January evaporation to exceed the corresponding potential evaporation?

  • In conditions of high soil moisture and rainfall
  • In conditions of high temperature and sunshine
  • In very high wind conditions
  • In no case

39) What type of dam is Hoover Dam?

  • arch-gravity
  • arch
  • gravity
  • arch with internal buttress

40)  Which of the following statement is INCORRECT

  • The daily peak coefficient for industrial areas is λ = 1
  • The water supply from a dam to a city is dimensioned based on the average daily consumption.
  • Optimization of water resources systems in simple words is “Given the available water supply, how can we optimally meet demand? For where and how much water should we sent to each consumer?”
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