Enzymes belong to the category of
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- In the acid Bessemer process, the hot metal should have the following composition.
- Which of the following material handling equipments is not suitable for moving materials in varying…
- Out of the following the refractive index is the highest for
- With increase in __________ Knocking tendency in a spark ignition petrol engine decreases.
- The size of the tetrahedral void in the closest packing of atoms is __________ that of the octahedral…
- Surface tension of a liquid
- __________ rubber is generally used for making 'O' rings used for vacuum sealings.
- Brittleness induced due to the presence of sulphur in steel can be reduced by adding
- In the X-ray radiography technique, the tube voltage for thicker plates as compared to thin plates,…
- Secondary hardening in steels arises out of the
- Which of the following is not categorised as the ore agglomeration process?
- The leaching solvent used in Baeyer's process for the purification of bauxite is
- Fahrenheit and Centigrade scales have the same readings at
- The phenomenon occurring during explosion of a hydrogen bomb is
- Which of the following relationships is correct for relating the three elastic constants of an isotropic…
- Which of the following is an ore dressing operation?
- The property of material, by which a given amount of energy is absorbed by it without plastic deformation,…
- Constituents of stellite are
- At the point of boundary layer separation in fluid flow, the
- Recrystallisation temperature of steel is __________ °C.
- Fog is an example of colloidal system of
- The yield point phenomenon observed in annealed low carbon steel is due to the presence of the following…
- The lightest non-inflammable gas is
- __________ is not a heat treatment process.
- The ability of tool steel to resist softening at high temperatures is termed as __________ hardness.
- The best lubricants for a machine working at high temperature & load is
- Case hardening is not done by
- Half life of a radioactive isotope corresponds to the time required for half of the __________ to decay.
- Which of the following is an example of stress corrosion?
- Volume of blast furnace slag is about __________ times the volume of hot metal (pig iron) of the same…