The approximate height of a blast furnace having a useful volume of 2000 m3 is about __________ metres
25
35
55
75
- Ferromagnetic materials owe their properties to __________ inner sub-shells.
- Temperature profile along the length of a gasgas counter flow heat exchanger is correctly represented…
- The amount of water evaporated in kg per kg of fuel burnt in a boiler is called the __________ of a…
- The temperature at which the magnetic property of iron disappears (i.e., it becomes non-magnetic) and…
- Increasing sulphur content in pig iron tends to make it
- Probability of cavitation occuring becomes very high, when the local __________ resulting in water bubbles…
- While the oxy-acetylene flame produces a temperature of 3200°C, the temperature produced by oxy-hydrogen…
- With increasing carbon percent in steel beyond 0.8%, its ultimate tensile strength (UTS) and __________…
- Which of the following processes follows the hardening process for reducing the hardening strains &…
- In an amorphous material, atoms defy any definite atomic structure and exist in random pattern just…
- Heat flow across a hollow sphere of inner radius 'r1' and outer radius 'r2' is directly proportional…
- Principal alloying elements of cast tool alloys which have very high wear resistance & high temperature…
- Which of the following equipments is used for liquid dispersion?
- Work hardenable alloy steel used to make the bucket wheel excavators, blades of bulldozers and other…
- Fire in fuel gas pipelines is extinguished most effectively by
- A solar cell converts the sunlight directly into __________ energy.
- The boiling & freezing points on a newly defined temperature scale in degree 'D' are 400°D & 100°D…
- Lead is poured into the joint between two __________ pipes.
- Energy of the sun arises mainly from __________ reactions.
- In case of a, centrifugal pump, the ratio h1/h2 is termed as the __________ efficiency (where, h1 =…
- Pick out the correct statement.
- The fugacity of liquid water at 298 K is approximately 3171 Pa. Considering the ideal heat of vaporisation…
- In Imperial Smelting Process for extraction of zinc, zinc vapour thus produced is quenched in the external…
- Heat transfer by __________ is almost absent in case of fluidised bed drying operation.
- Nuclear fission of one atom of uranium-235 produces the energy equivalent to about __________ MeV.
- Blow off cock is provided in steam boiler to
- The transition temperature at which all the ferromagnetic materials become paramagnetic materials is…
- Atomic __________ is a whole number for an element.
- The minimum carbon content in steel should be __________ percent for it to respond to a hardening treatment.
- Which of the following does not discharge the dust collected as a dry solid?