Consumable electrodes are used in the __________ welding.
Gas
Arc
Thermit
Resistance
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- For preparation of porous bearings by powder metallurgy, preferred particle shape is
- Pick out the wrong statement.
- Cold working of a material results in increase in hardness, which is termed as the __________ hardening.
- Identify the correct statement with reference to the extractive metallurgy of aluminium.
- Increasing the carbon content of steel
- At absolute zero temperature, for any reaction involving condensed phases
- Ganister contains maximum percentage of
- Air/fuel ratio on molar (volume) basis for combustion of methane with theoretical quantity of air with…
- Which of the following is normally not found in both the S.I. (petrol) & C.I. (diesel) engines?
- Joule-Thomson co-efficient is the ratio of
- L.D. (Linz-Donawitz) converter is used in the production of
- In Imperial Smelting Process for extraction of zinc, zinc vapour thus produced is quenched in the external…
- Consider the equilibrium A(g) + B(g) = AB(g). When the partial pressure of A is 10-2 atm, the partial…
- Secondary hardening in steels arises out of the
- Which of the following is used to produce draught in the locomotive boilers?
- Which of the following is an unconventional source of energy?
- Steel & cast iron pipes are produced by __________ casting.
- Nickel is a __________ material.
- Volumetric composition of flue gas analysed with the Orsat apparatus is : CO2 = 12%, O2 = 8%, CO = nil,…
- Electrostatic separation of minerals from each other is based on their differences in the following…
- Principal alloying elements of cast tool alloys which have very high wear resistance & high temperature…
- __________ are normally subjected to sub-zero treatment.
- Atomic __________ is a whole number for an element.
- Pick out the wrong statement about coating/electroplating of metals.
- Induced draft fans provided in large thermal power plant boilers have __________ blades.
- Which of the following is an example of cathodic protection of metals against corrosion?
- In a furnace with heating element temperature at 1700°C, the dominant mechanism of heat transfer…
- The substance used as a smoke screen in warfare is
- The following type of bonding is strongly directional in solids.
- Oxide layer formed on the non-ferrous metal surface after its annealing is