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Exposure to __________ accelerates the degradation of plastics.

A. Ultraviolet radiation

B. High atmospheric temperature

C. High ambient temperature

D. Damp atmosphere

Please do not use chat terms. Example: avoid using "grt" instead of "great".

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  1. Shrinkage allowance on pattern is provided to compensate for shrinkage when the
  2. More than 95% of __________ is present in corundum.
  3. Blasting of tri-nitro-toluene (TNT) is done by mixing it with ammonium
  4. Heat release during phase change is observed in case of a/an
  5. The emf of a Deniell cell Zn | Zn2+ || Cu2+ | Cu can be increased by
  6. Pick out the wrong statement.
  7. Constituents of stellite are
  8. Difference at any instant between the value of the controlled variable and the set point is called the
  9. Stellite is a __________ material.
  10. Vibration upto 100 kilo hertz can be most accurately measured by a __________ type accelerometer.
  11. Electrometallurgical methods of metal extraction is normally used for those metals
  12. A steam carrying pipeline is insulated with two layers of insulating materials with the inferior insulation…
  13. The effect of friction on the flow of steam through a nozzle is to decrease the __________ of steam.
  14. Potable water means the water used for
  15. __________ test can be termed as the semidestructive test.
  16. Which one can be directly solidified from gaseous state without entering into liquid state?
  17. Which of the following is normally not found in both the S.I. (petrol) & C.I. (diesel) engines?
  18. The rolling process cannot be used to produce
  19. __________ stress cannot be sustained by a fluid in equilibrium.
  20. Velocity of a gas in sound is not proportional to (where, T = Absolute temperature of the gas. P = Absolute…
  21. Theoretical volume of oxygen required for complete combustion of 1Nm3 of acetylene, in oxyacetylene…
  22. Austempering of steel requires it to be heated to 875°C followed by sudden cooling to 250-525°C,…
  23. Aluminium is extracted from
  24. Other parameters remaining same, the recrystallisation temperature of an alloy is lowered, when
  25. The function of neutral flux used in the pyrometallurgy of metal extraction is to increase the __________…
  26. The phenomenon occurring during explosion of a hydrogen bomb is
  27. With increasing carbon percent in steel beyond 0.8%, its ultimate tensile strength (UTS) and __________…
  28. Which of the following is not used as a bearing material?
  29. While the recrystallisation temperature for pure metals is 0.3 Tm, the same for alloys is equal to __________…
  30. Babbitt lining is used on brass/bronze bearings to increase the