Midrex process of sponge iron production uses reformed natural gas as the reducing agent, which uses iron ore in the form of
Lumps
Pellets
Briquettes
Sinter
- Melting point & boiling points of liquid oxygen are respectively - 218.8°C & - 183°C, while…
- An alloy of Fe - 0.4 % C is
- Pick out the correct statement
- Addition of __________ to steel does not help in improving its machinability.
- A polymer is termed as an 'elastomer', if its percentage elongation is more than 100%. An elastomer…
- The dimensional formula of bulk modulus of elasticity is same as that of the
- The size of the tetrahedral void in the closest packing of atoms is __________ that of the octahedral…
- Glass reacts with
- Carbon supply in pack carburising process is in the form of
- The heat of neutralisation remains constant, when there is a reaction between dilute solutions of strong
- The underground well of a biogas plant is called the
- The mechanism involved in the removal of metal in drilling operation is by
- Inertial forces are obtained, when the elastic forces are multiplied by __________ number.
- Hot & cold working of material causes its __________ deformation.
- Hydrogen can be
- Compressed dry air is used as the cutting fluid, while machining
- Steel balls are manufactured by
- The minimum temperature to which the water can be cooled in a cooling tower is the __________ temperature…
- What is the value of entropy at 273°K?
- A solid aluminium ball, when quenched in a water bath maintained at 40°C, cools down from 550°C…
- Which of the following fastening devices has a head at one end and a nut fitted to the other?
- The highest stress that a material can withstand for a specified length of time without excessive deformation…
- Atomic __________ of an element is a whole number.
- Out of the following, the __________ pipe has the least corrosion resistance.
- Thermit welding uses the following energy source.
- 'Dikes' are low height walls made around the storage vessels meant for storing hazardous & inflammable…
- Upto the critical radius of insulation, added insulation, will
- What is the range of tempering temperature (°C) for most of the materials?
- The surface tension of a liquid, at critical temperature is
- Thermal conductivity of a material does not depend upon its