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Combined carbon content in iron and steel is determined by treating the sample with dilute HNO3. So that combined carbon forms a soluble brown nitrated compound, the intensity of which is matched with that of a standard sample of similar composition treated under similar condition. The intensity of color produced is proportional to the carbon content of iron of steel sample. This method of combined carbon determination is called the
What should come in place of question mark (?) in the following question? 2.3̅9̅ + 5 + 6.2̅5̅ + 0.0̅8̅ = ?
Solution-1 containing 40% nitric acid and 20% carbon dioxide at the rate F combines with Solution-2 containing 30% nitric acid and 40% carbon dioxide at the rate D, the product formed contains 30% nitric acid and 20% carbon dioxide at the rate P, If P = xF what is x?
Solution-1 containing 40% acetic acid and 20% carbon dioxide at the rate F combines with Solution-2 containing 20% acetic acid and 40% carbon dioxide at the rate D, the product formed contains 30% acetic acid at the rate P, what is the percentage of carbon dioxide in product?
How much carbon does hypoeutectoid steel contain?
What does the term ‘carbon count’ means? 1. A measure of the amount of carbon dioxide you produce through your lifestyle every day. 2. A measure of the amount of carbon present on Earth. 3. A measure of the amount of carbon and carbon dioxide on Earth. Select the correct answer using the code given below.
In annealing process, for the formation of hypoeutectoid steel, the steel has to be heated above what point?
Maximum carbon content in any variety of steel can be upto 1.3%. Steel containing 0.4% Carbon is not used for making
The two surfaces of a 5 mm thick plate of carbon steel are maintained at a carbon concentration of 104 mol. m-3 on one side and zero concentration on the other side. Taking the diffusion coefficient of carbon in austenite to be 10-11 m-2.s-1, the steady state flux (mol.m-3.s-1) through the thickness of the steel is
A fuel containing carbon and carbon monoxide (but containing no hydrogen or its compounds) is burnt in pure oxygen at constant pressure. Its gross calorific value as compared to net calorific value will be