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Which of the following statements is correct regarding the oxidation number of Oxygen? I. The oxidation number of Oxygen in most compounds is -2. II. When Oxygen is bonded to Fluorine in compounds like Oxygen difluoride and Dioxygen diflouride, the Oxygen is assigned an oxidation number of +2 and +2 respectively. III. In peroxide, an Oxygen atom is assigned an oxidation number of -1 and in Superoxide, each oxygen atom is assigned an oxidation number of -1/2.
Which of the following statements regarding the ‘casting vote’ in the Parliament is/are correct ? 1. It is cast by the speaker or a person acting as such. 2. It is cast in addition to voting in the first instance. 3. It is cast in the case of equality of votes. 4. It is always cast to maintain the status quo. Select the correct answer using the code given below:
What is the composition of high-silicon cast iron named Durichlor that has the highest corrosion resistance among cast irons?
In a well aerated and agitated microbial culture, the 'supply' of oxygen is equal to 'demand' (uptake) of the growing culture. The KLa for such a system will be (KLa = volumetric mass transfer coefficient, C* = dissolved oxygen concentration in liquid in equilibrium with gaseous oxygen, C = instantaneous value of dissolved oxygen concentration, 'r' = specific oxygen uptake rate per unit weight of cells, X = dry weight of the cells per unit volume)
Consider the following statements: 1. HSS tools wear very rapidly, whereas in cemented carbide tools, even though hardness is retained, crater wear can occur due to solid-state diffusion. 2. Cutting tools made of Super-HSS, also known as cobalt-based HSS, are made by adding 2% to 15% of cobalt which increases the cutting efficiency at heavier cuts by increasing the hot hardness and wear resistance. 3. Tools failure due to excessive stress can be minimized by providing small or negative rake angles on brittle tool materials, protecting tool tip by providing large side-cutting edge angles, and honing a narrow chamfer along the cutting edge. Which of the above statements are correct?
Flank wear occurs mainly on the 1. Nose part of the cutting tool 2. Front relief face and side relief face of the cutting tool 3. Face of the cutting tool at the shortest distance from the cutting edge Which of the above is/are correct?
Choose a figure which would most closely resemble the unfolded form of figure (Z).
Paper Cutting mcq question image
Choose a figure which would most closely resemble the unfolded form of figure (Z).
Paper Cutting mcq question image
Choose a figure which would most closely resemble the unfolded form of figure (Z).
Paper Cutting mcq question image
Choose a figure which would most closely resemble the unfolded form of figure (Z).
Paper Cutting mcq question image