Biological shield in a nuclear reactor is generally provided to protect against the
α-rays
β-rays
Gamma rays & neutrons
Electrons
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- Addition of small amount of __________ to grey cast iron is done to produce nodular grey cast iron.
- Pick out the wrong statement.
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- Pick out the correct statement about the condensation.
- Powder metallurgy process does not make metal powder by
- A polymer is termed as an 'elastomer', if its percentage elongation is more than 100%. An elastomer…
- Ceramic compounds as compared to metallic compounds
- Upto the critical radius of insulation, added insulation, will
- The leaching solvent used in Baeyer's process for the purification of bauxite is
- The function of neutral flux used in the pyrometallurgy of metal extraction is to increase the __________…
- Which of the following is not a ferromagnetic material?
- Which of the following test is used for distinguishing among dry oils, semi-drying oils and non drying…
- Increase in temperature, in general results in the
- For a thermodynamic system undergoing a process, which of the following pairs best expresses the relationship…
- The stress at which extension of the material takes place more rapidly as compared to the increase in…
- The most prominent single cause of corrosion in boiler-tubes, drums, economisers and steam superheaters…
- Triple point of water is
- Consideration of the creep is the most important in case of the
- Spherical shape of mercury droplets is due to its
- The dew point temperature lines on psychrometric charts are straight inclined sloping downwards to the…
- __________ glass is used in the mercury in glass thermometer meant for measuring a temperature of 500°C.
- In the blast furnace, incorporation of water vapour in the blast gives the following effect.
- Material of construction of the electrode used in the electric resistance welding is
- Surface tension of a liquid
- Addition of silicon to cast iron
- Annealing of cast iron
- Out of the following, the best material capable of withstanding shock & vibration without the danger…
- Corrosion of metals cannot be prevented by its