Related Questions

In a laboratory test run, the rate of drying was found to be 0.5 × 10-3 kg/m2.s, when the moisture content reduced from 0.4 to 0.1 on dry basis. The critical moisture content of the material is 0.08 on a dry basis. A tray dryer is used to dry 100 kg (dry basis) of the same material under identical conditions. The surface area of the material is 0.04 m2/kg of dry solid. The time required (in seconds) to reduce the moisture content of the solids from 0.3 to 0.2 (dry basis) is
Corrosion of less corrosion-resistant metal is usually increased and the attack of the more corrosion-resistant is decreased in galvanic corrosion.
200 kg of solids (on dry basis) is subjected to a drying process for a period of 5000 seconds. The drying occurs in the constant rate period with the drying rate as, Nc = 0.5 × 10-3 kg/m2.s. The initial moisture content of the solid is 0.2 kg moisture/kg dry solid. The interfacial area available for drying is 4 m2/1000 kg of dry solid. The moisture content at the end of the drying period is (in kg moisture/kg dry solid)
Which of the following corrosion form is considered as the intermediate stage between uniform corrosion and complete corrosion resistance?
In a galvanic couple, the corrosion rate of the metal with active corrosion potential is accelerated whereas the corrosion rate of noble metal retards preferentially.
Which protection method is depicted in then given figure?
Electrometallurgy and Corrosion mcq question image
What is depicted in the given polarization curve?
Electrometallurgy and Corrosion mcq question image
Sheltered corrosion is the type of corrosion where moisture condenses or accumulates and does not dry out for long periods of time.
Corrosion due to the flow of the _________ between the cathodic and anodic areas is called as the electro chemical corrosion by evolution of hydrogen ad absorption of oxygen.
Dry rot is a defect caused in timber in which wood is converted into dry powder form by fungi. Which of the following statements about dry rot is not correct?