Oxyacetylene reducing flame is used while carrying out welding on
Alloy steel
Grey cast iron
Mild steel
High carbon steel
- The majority charge carriers in p-type silicon are
- The units of the rate constant for a second order reaction are
- The atmospheric temperature during melting of ice/snow (in the atmosphere)
- Consider an ideal solution of components A and B. The entropy of mixing per mole of an alloy containing…
- Function of gear box is to
- The maximum thickness of the metal which can be welded using ultrasonic welding is __________ mm.
- In practice, the compression ratio of compression-ignition (CI) engine ranges from
- Catalyst used in the catalytic converter employed in automobiles to convert CO into CO2 and for complete…
- Austempering of steel requires it to be heated to 875°C followed by sudden cooling to 250-525°C,…
- Which of the following phenomenon will exhibit the minimum heat transfer?
- Corrosion is
- Angular displacement can be measured suitably by a
- Square steel key is normally strong in failure by shear & crushing. Keys are normally made of __________…
- Notched bar test is used for testing the __________ of a material.
- Basicity of the slag in Indian blast furnace is in the range of
- An example of unsteady non uniform flow is the flow of liquid under pressure through a
- Consumable electrodes are used in the __________ welding.
- The kinematic viscosity (in stoke) and the absolute/dynamic viscosity (in poise) are the same for __________…
- With increase in annealing temperature, the following defect density decreases.
- Optical activity is a/an __________ property.
- Cold heading or upsetting is categorised as the __________ process.
- __________ is the hardest material out of the following.
- Steel produced from phosphatic iron is __________ in nature.
- The mechanism which changes the value of manipulated variable in response to the output signal from…
- In TIG welding, thoriated tungsten electrodes are used, because it
- Brittleness induced due to the presence of sulphur in steel can be reduced by adding
- Out of the following, which will fracture most readity, when hit with a hard hammer?
- Suitability of steel for its use in cable is judged by its strength in
- In extrusion of metals, which of the following statement is true?
- Projection welding & stud welding is categorised as the __________ welding.