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Wood is a/an __________ material.

A. Amorphous

B. Cellular

C. Homogeneous

D. Granular

Correct Answer : B.


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  1. __________ is used as a material of construction for the blade of power saw.
  2. Sacrificial anode method is used in the protection of pipelines which are buried underground. Sacrificial…
  3. During decarburising of a plain carbon steel, the thickness of ferrite layer growth is proportional…
  4. Hydrogen in liquid steels is dissolved
  5. The Al2O3 content of cryolite in Hall- Heroult cell is maintained between __________ percent.
  6. A polymer is termed as an 'elastomer', if its percentage elongation is more than 100%. An elastomer…
  7. The usual energy consumption in electric arc furnace steel making is __________ KWh/ton of steel.
  8. Electrometallurgical methods of metal extraction is normally used for those metals
  9. Moist air is cooled along the line of constant __________ , when it is passed over a cold & dry cooling…
  10. The kinematic viscosity (in stoke) and the absolute/dynamic viscosity (in poise) are the same for __________…
  11. Minimum temperature upto which water can be theoretically cooled down in the cooling tower by evaporative…
  12. A steam carrying pipeline is insulated with two layers of insulating materials with the inferior insulation…
  13. Materials having __________ lattice structure are usually the most ductile.
  14. The expected efficiency of a single riveted lap joint is of the order of 50%. If the thickness of the…
  15. Laser is a device to produce
  16. Theoretical volume of oxygen required for complete combustion of 1Nm3 of acetylene, in oxyacetylene…
  17. Increase in the entropy of a system represents the
  18. Which of the following emissions in the exhaust gas of an I.C. engine causes the formation of photochemical…
  19. Out of the following, maximum temperature drop for a given heat flow & for the same thickness will be…
  20. Tip of the match stick contains a mixture of
  21. Tesla metre per ampere (T. m/A) is the unit for the measurement of
  22. The minimum carbon content in steel should be __________ percent for it to respond to a hardening treatment.
  23. In an eutectic system, two elements are completely
  24. Percentage of differential pressure lost in a Venturimeter with a tapering of 15° may be about
  25. __________ is the process of coating the surface of steel with aluminium oxide, thereby imparting it…
  26. Eutectic reaction for iron-carbon system occurs at a temperature of __________ °C.
  27. Normalising of an object does not
  28. The refrigerant freon-12 is chemically
  29. As per the Indian boiler regulation (IBR), the type of joint preferred for the circumferential joint…
  30. Which of the following has the highest modulus of elasticity (about 7 × 106 kg/cm2)?