Course ID: C&ENVENG; 3077 Page 5 of 11 Q7 which option AoE below provides the be
ID: 1710687 • Letter: C
Question
Course ID: C&ENVENG; 3077 Page 5 of 11 Q7 which option AoE below provides the best combination of altermatives (1H4) that complete the folowing statement For a given catchment, as the food magnitude increases: (1) The average recumence interval increases (2) The exceedance probability decreases (3) The availability of fow data increases (4) The acceptable level of risk decreases C. and (4) E. None of the combinations givenin AD,itis another combination Q8 Flow measurement is usually done by measuring sow velodty continuously. Is this true? Please select the option with the most appropriate reasoning. A Yes, because flow velocity measurements are far more accurate than river height measurements B. No, because river height measurements are far more accurate than river velocity measurements C No, because river height is easier to measure continuously than velocity D. No, river height over weir structures Leasily converted to fow using appropriate formulae None of the above 09. Examine Figure 1 showing the observed peak fow data and the fitted distribution for a catchment in South (1) The fitted food distribution isnota good match to the observed data (2) The observed data have a higher variability than the fitted distribution (3) The observed data have a higher skewness than the fitted distribution (4) The observed data have a higher mean than the fitted distribution B. (1) and 3) D. 1), and (4) PLEASE SEE NEXT PAGEExplanation / Answer
7) option A
I.e statement 1 and 2
1)recurrance mean occuring again .
as rainfall is heavy at a certain time rain occuring again will have less chance.
that mean recurrence increases .
2) this option is exceedance probability decreases .
as the flood means excess of rain.if the all rain falls at a certain time its fall will be less time.
that is exceedance probability decreases.
8) option A
flow velocity measurements are more accurate than river height measurements.
flow measurement is usually done with velocity measurements only.
ofcourse the river height measurements are easy but it is not preferred more .due to its lack of accuracy.
9) option B
i.e statements 1 and 3 is the best combination.