The main reducing agent in iron blast furnace is
Carbon dioxide
Carbon monoxide
Oxygen
Air
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- Pick out the wrong statement.
- Identify the false statement
- The trace metal present in insulin is
- In the formation of cermets, the ratio of ceramic material to metallic material is usually 80:20. Which…
- __________ is the process of coating the surface of steel with aluminium oxide, thereby imparting it…
- L.D. (Linz-Donawitz) converter is used in the production of
- Addition of small amount of __________ to grey cast iron is done to produce nodular grey cast iron.
- A gas which is collected over water becomes moistened due to water vapor, exerts its own partial pressure…
- Satellites burn off during re-entry to earth's atmosphere, because of the
- Austempering process results in the formation of __________ structure.
- __________ remains constant during the adiabatic cooling of moist air.
- __________ is the most important element, which controls the physical properties of steel.
- Alumina, silica, lime and iron oxide are the basic raw material for the manufacture of Portland cement.…
- When an isolated thermodynamic system executes a process,
- LVDT used for displacement measurement is a/an __________ transducer.
- The amount of different substances produced, when the same quantity of electricity is passed through…
- Thermit welding is categorised as the __________ welding.
- Most of the phosphorous present in the blast furnace burden enters into
- The malleability of a material is the property by virtue of which it can be rolled or hammered into…
- The size of the tetrahedral void in the closest packing of atoms is __________ that of the octahedral…
- Filler material used in welding should have __________ as compared to the parent metal to be welded.
- Good design of the casing of a centrifugal pump aims at minimising the
- The most important function of a washer is to provide bearing area and washers are normally specified…
- The most commonly used moderator in nuclear power plants is
- Function of gear box is to
- Wrought iron is never shaped by
- Triple point of water is
- The main charge in blast furnace is usually
- Friction factor for fluid flow in pipe does not depend upon the
- Gas turbine normally employs a constant __________ cycle.