__________ iron is produced by the annealing of white cast iron.
Malleable
Nodular
Ductile
Grey
- Other parameters remaining same, the recrystallisation temperature of an alloy is lowered, when
- Heat required to raise the temperature of a body by 1 °C is called its
- The effect of friction on the flow of steam through a nozzle is to decrease the __________ of steam.
- Austempering process results in the formation of __________ structure.
- Drills are usually made of
- A steam pipe is intended to be insulated with two layers of insulating materials of different thermal…
- In case of water (Prandtl number ≈ 6) flowing over a flat plate heated over the entire length,…
- As per the Indian boiler regulation (IBR), the type of joint preferred for the circumferential joint…
- Sand used to stop the green sand from sticking to the pattern is termed as the __________ sand.
- Basic open hearth furnace (BOF) is not used for producing __________ steel.
- Ganister contains maximum percentage of
- Chromium molybdenum steel cannot be welded using __________ welding.
- At absolute zero temperature, for any reaction involving condensed phases
- For infinite parallel planes having emissivities ε1 & ε2, the interchange factor for radiation…
- Broaching tools are usually made of
- The wet bulb temperature is lower in dry air than in wet air at the same temperature. A dry bulb thermometer…
- Pick out the correct statement.
- The activity of pure hydrogen gas at 1000°C and 5 atm pressure
- Carnot cycle is also termed as the constant __________ cycle in thermodynamics.
- At the point of boundary layer separation in fluid flow, the
- Normalising does not __________ of a metal.
- With increasing carbon percent in steel beyond 0.8%, its ultimate tensile strength (UTS) and __________…
- Cold heading or upsetting is categorised as the __________ process.
- What is the critical radius of insulation (cms) for a metallic cylinder, if the convective heat transfer…
- The surface tension of a liquid, at critical temperature is
- A 2 kg object weighs 1.8 kgf on a spring balance. The value of 'g' at that location in m/sec2 is
- 'Dikes' are low height walls made around the storage vessels meant for storing hazardous & inflammable…
- Atomic __________ of an element is a whole number.
- The stress at which extension of the material takes place more rapidly as compared to the increase in…
- Temperature profile along the length of a gasgas counter flow heat exchanger is correctly represented…