Nuclear fission of one atom of uranium-235 produces the energy equivalent to about __________ MeV.

A. 20

B. 200

C. 500

D. 2000

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  1. Metallic surveying tapes are made of __________ which has a low co-efficient of expansion & enough strength.
  2. The cooling rate required to freeze 1 ton of water at 0°C into ice at 0°C in 24 hours is __________…
  3. Pick out the wrong statement
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  5. Venturimeter is used to measure the flow rate of fluids in pipes, when the pipe is in __________ position.
  6. Air-petrol ratio in an automotive petrol engine is around
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  8. All of the following alloying elements of steel increases hardness but sacrifice ductility, except
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  10. Thermal diffusivity of a substance is proportional to (where, k = Thermal conductivity)
  11. Pick out the wrong statement.
  12. Lead pencil contains
  13. A solar cell converts the sunlight directly into __________ energy.
  14. Sand used to stop the green sand from sticking to the pattern is termed as the __________ sand.
  15. The most important function of a washer is to provide bearing area and washers are normally specified…
  16. Which of the following relationships is correct for relating the three elastic constants of an isotropic…
  17. 'Cryogenics' is concerned with the generation & use of low temperature in the range of
  18. All the atoms of the world comprise of electrons, proton & neutron except that of __________ atom in…
  19. Vernier calipers cannot be used to measure the
  20. According to thermodynamic Fahrenheit scale, the fundamental interval between ice point to steam point…
  21. The temperature at which the magnetic property of iron disappears (i.e., it becomes non-magnetic) and…
  22. The mechanism which changes the value of manipulated variable in response to the output signal from…
  23. The material used for coating the welding electrode is termed as the
  24. Materials having __________ lattice structure are usually the most ductile.
  25. The most commonly used moderator in nuclear power plants is
  26. Which of the following is not a ferromagnetic material?
  27. Which of the following metals is the most prone to work hardening?
  28. For grinding of softer materials, the grinding wheel should have __________ grain size.
  29. As per international norms, the maximum permissible value of noise level in the industrial environment…
  30. Powder metallurgy is used to produce