1. Which of the following statement(s) is/ are correct?
(i) Normal ratio method is used for estimating missing annual precipitation value at a station when the annual precipitation and normal annual precipitation at neighboring stations are known
(ii) Arithmetic average method of calculating the average precipitation is superior to Thiessen- Polygon method
(iii) Isohyetal method of calculating average rainfall is superior to arithmetic average method and Thiessen-Polygon method
[A] (i) and (ii)
[B] (i) and (iii)
[C] (ii) and (iii)
[D] (i), (ii) and (iii)
Answer: Option B
2. Depth- Area- Duration curves of precipitation are drawn as ____.
[A] Minimizing envelopes through the appropriate data points
[B] Maximizing envelopes through the appropriate data points
[C] Best fit curves through the appropriate data points
[D] Best fit mean straight lines through the appropriate data points
Answer: Option B
3. Evaporation is determined experimentally using ____.
[A] An open pan
[B] A neutron probe
[C] A lysimeter
[D] An infiltrometer
Answer: Option A
4. The salinity in water
[A] Does not affect evaporation
[B] Reduces the evaporation
[C] Increases the evaporation
[D] None of the above
Answer: Option B
5. Which of the following chemical is suitable to be used as a water evaporation inhibitor?
[A] butyl alcohol
[B] cetyl alcohol
[C] methyl alcohol
[D] ethyl alcohol
Answer: Option B