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To ensure uninterrupted water supply to the city, the Assistant Engineer of Calcutta Corporation (now Kolkata Municipal Corporation or KMC), Arthur Peirce, conceived what became Tala tank in 1901. [7] The Chief Engineer of KMC, W. B. MacCabe, designed the tank in 1902. Having a nine-million-gallon water reservoir overhead was a daring ...
Figures such as the chloride-to-sulfate mass ratio (CSMR) can be used to estimate the risk of corrosion at galvanic connections (i.e. desimilar pipe/solder connections, such as a lead-to-iron transition). The 2014 Flint water crisis was caused by a combination of source water change and a lack of corrosion control. The new, higher-CSMR water ...
Rust is an iron oxide, a usually reddish-brown oxide formed by the reaction of iron and oxygen in the catalytic presence of water or air moisture. Rust consists of hydrous iron(III) oxides (Fe 2 O 3 ·nH 2 O) and iron(III) oxide-hydroxide (FeO(OH), Fe(OH) 3 ), and is typically associated with the corrosion of refined iron .
Kolkata, [a] also known as Calcutta [b] (its official name until 2001), is the capital and largest city of the Indian state of West Bengal. It lies on the eastern bank of the Hooghly River, 80 km (50 mi) west of the border with Bangladesh. It is the primary financial and commercial centre of eastern and northeastern India. [16]
Enraged still further when the British granted asylum to one Krishnaballav, who had embezzled money from the dewani of Dhaka, Siraj ud-Daula first attacked and captured Cossimbazar (taking as hostage William Watts and Begum Johnson), and then Calcutta, which fell after a short siege on 20 June 1756, during which the governor and many other ...
Donald Trump took three 'rust belt' states that are part of the 'blue wall' in 2016. What states are they?