Oxyacetylene reducing flame is used while carrying out welding on
Alloy steel
Grey cast iron
Mild steel
High carbon steel
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- __________ test can be termed as the semidestructive test.
- Which of the following is the most suitable abrasive for grinding high tensile strength materials?
- The most detrimental impurity in high pressure boiler feed water is
- Water hammer is caused in steam carrying pipelines, because of
- For efficient performance of a blast furnace, the extent of reduction of Wustite (FeO) should be
- Specific __________ is a dimensionless quantity.
- Carbon is present in the form of __________ in grey cast iron.
- Specific gravity of a metal, which weighs 5 kg in air and 4 kg when submerged in water, will be
- The most important requirement for aluminium industry is the availability of cheap
- Dislocation cross-slip is difficult in those materials, which have
- Main constituent of bone ash is
- In Imperial Smelting Process for extraction of zinc, zinc vapour thus produced is quenched in the external…
- Carnot cycle is also termed as the constant __________ cycle in thermodynamics.
- 'Amortization' in respect of financial obligation of a company means the
- Which of the following if present in iron ore, enhances its value?
- A fluid is termed as the Newtonian fluid, when the shear stress is __________ the velocity gradient.
- Bad odour in sanitary latrines is reduced by periodically sprinkling
- Absolute zero, pressure will occur, when the molecular momentum of the system becomes zero. A liquid…
- For a thermodynamic system undergoing a process, which of the following pairs best expresses the relationship…
- Age hardening is connected with
- The __________ of a double acting reciprocating pump as compared to the single acting pump will be almost…
- The surface tension of a liquid, at critical temperature is
- Coating provided on the electrodes used in the arc welding is not expected to
- Silicon percentage in the silicon steel used for electrical appliances/equipments is
- __________ is not used as a material of construction in thermocouples.
- Which of the following processes follows the hardening process for reducing the hardening strains &…
- Austempering of steel requires it to be heated to 875°C followed by sudden cooling to 250-525°C,…
- For the Stoke's law to be valid in the case of a falling sphere in a fluid, the
- Constituents of stellite are
- The escape velocity of a body on earth which is independent of its mass is about __________ km/second.