X-rays are

A. Positively charged

B. Negatively charged

C. Neutral

D. Of higher wavelength than visible light

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  1. The difference in one unit of Rockwell hardness number corresponds to a difference in the depth of indentation…
  2. Electrolytic reduction cell used for conversion of calcined Al2O3 to Al is a carbon lined furnace operating…
  3. A cylindrical rod subjected to a tensile strain within the elastic limit undergoes a volume change.…
  4. Addition of small amount of __________ to grey cast iron is done to produce nodular grey cast iron.
  5. Stainless steel is welded with difficulty because of
  6. Mild steel has __________ crystal lattice structure.
  7. The product (s) of roasting of a sulphide ore is (are)
  8. Satellites burn off during re-entry to earth's atmosphere, because of the
  9. Specific gravity of hot metal (pig iron) is __________ times that of the blast furnace slag.
  10. Methyl orange indicator turns
  11. With increase in steam pressure, its specific volume decreases
  12. A psychrometer does not measure the __________ temperature of moist air.
  13. Young's modulus of a material is the measure of its
  14. The most commonly used moderator in nuclear power plants is
  15. Use of water as a manometric liquid suffers from the disadvantage of its
  16. Speisses is a mixture of the following:
  17. __________ the exhaust gas is an indication of the incomplete combustion of fuel.
  18. The following thermocouple may be used for measuring temperature upto 1873°K.
  19. The main constituent of bones is
  20. The thickness of oxide film is y at time t. If are the temperature dependent constants, the parabolic…
  21. The fugacity of liquid water at 298 K is approximately 3171 Pa. Considering the ideal heat of vaporisation…
  22. Depreciation of machines fails under the indirect expenses head. As per income tax regulations, it is…
  23. Unit of surface tension in S.I. unit is
  24. With increasing carbon percent in steel beyond 0.8%, its ultimate tensile strength (UTS) and __________…
  25. Brass parts with high residual tensile stress at the surface are susceptible to season cracking (i.e.…
  26. Plants produce carbohydrates from the CO2 present in the atmosphere by
  27. According to thermodynamic Fahrenheit scale, the fundamental interval between ice point to steam point…
  28. Steel rods are normally used for concrete reinforcement because concrete and steel have almost equal
  29. Increase in the entropy of a system represents the
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