(a) A catchment area has 5 rain gauge stations with annual recorded data for year 2010 in Table Q2-1. (i) Determine the standard error in the estimation of mean rainfall. (6 marks) (ii) Calculate the optimum number of rain gauge for a 10% error of mean rainfall. (2 marks) (iii) In year 2020, mean rainfall data is obtained with 1100mm for station A, 950mm for station B, 1250mm for station C, 1150mm for station D, but station E is inoperative. (2 marks) Estimate the mean rainfall in station E by using normal ratio method.

(a) A catchment area has 5 rain gauge stations with annual recorded data for year 2010 in Table Q2-1. (i) Determine the standard error in the estimation of mean rainfall. (6 marks) (ii) Calculate the optimum number of rain gauge for a 10% error of mean rainfall. (2 marks) (iii) In year 2020, mean rainfall data is obtained with 1100mm for station A, 950mm for station B, 1250mm for station C, 1150mm for station D, but station E is inoperative. (2 marks) Estimate the mean rainfall in station E by using normal ratio method.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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