5614. Contact process of sulphuric acid manufacture

By Admin / September 7, 2025

Yields acid of higher concentration than chamber process

Yields acids of lower concentration than chamber process

Is obsolete

Eliminates absorber

✅ The correct answer is option A.

614. The drainage area of a town is 12 hectares. Its 40% area is hard pavement ( K = 0.85), the 40% area is unpaved streets (K = 0.20) and the remaining is wooded areas (K = 0.15). Assuming the time of concentration for the areas as 30 minutes and using the formula Ps = 900/(t + 60) the maximum run off is__________________?

617. The property of a fluid which enables it to resist tensile stress is known as________________?

1. A fire tube boiler is limited to a maximum steam pressure of about __________ kg/cm².

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2. Transformer cores are normally made from

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