Carbonisation of coal consists of

A. Drying and crushing the coal to a fine powder

B. Moulding the finely ground coal under pressure with or without a binding material

C. Heating the wood with a limited supply of air to temperature not less than 280°C

D. None of the above

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  3. The efficiency of Carnot cycle depends upon
  4. During which of the following process does heat rejection takes place in Carnot cycle?
  5. When a closely-coiled helical spring of mean diameter (D) is subjected to an axial load (W), the deflection…
  6. In a prismatic member made of two materials so joined that they deform equally under axial stress, the…
  7. A shaft revolving at ω rad/s transmits torque (T) in Nm. The power developed is
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  11. The principal constituents of a fuel are
  12. Reversed joule cycle is called
  13. Formula based on IS codes is based on
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  15. The materials having same elastic properties in all directions are called
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  17. In a free expansion process,
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  19. In the below figure, the stress corresponding to point D is
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