Brittleness induced due to the presence of sulphur in steel can be reduced by adding
Manganese
Magnesium
Vanadium
Copper
- For an ideal gas, Cp - Cv is
- Principal alloying element in Elinvar (used for making hair springs for watches) is
- Induced draft fans provided in large thermal power plant boilers have __________ blades.
- Electrometallurgy is not involved in the extraction of __________ from its ore.
- Which of the following is the most wear resistant grade of carbide used for the cutting tools?
- Fine grained steels have
- The bolt is subjected to __________ when the nut is tightened by putting the washer beneath it.
- Yield strength of a polycrystalline metal with an average grain size d, is proportional to
- Velocity of a gas in sound is not proportional to (where, T = Absolute temperature of the gas. P = Absolute…
- The burnout heat flux in the nucleate boiling regime is not a function of the
- __________ of hard alloy and tool steel is done to make it easily machinable.
- Diameter of the rivet to be provided on a 20 mm. thick boiler plate will be __________ mm.
- Which of the following is resistant to the action of both heat & chemicals?
- Ganister contains maximum percentage of
- Titanium is produced by __________ of Ti Cl4.
- Enzymes belong to the category of
- Dry saturated steam can be converted into superheated steam by
- __________ is the process used for setting up compressive stresses in the surface of a metal to improve…
- Sacrificial anode method is used in the protection of pipelines which are buried underground. Sacrificial…
- A dummy activity is used in PERT network to describe the
- Annealing of cast iron
- Moist climate is the most favourable factor in the site selection far a
- Which of the following performance characteristics of a S.I engine is not affected by the front end…
- According to maximum shear stress failure criterion, yielding in material occurs, when the maximum shear…
- When an isolated thermodynamic system executes a process,
- Yield strength of a material is determined by the __________ test.
- Basicity of the slag in Indian blast furnace is in the range of
- Wrought iron is never shaped by
- Cold cracking in the heat affected zone of a high strength steel weld can take place because of the
- Increasing the carbon content of steel