Multiple choice

Which of the following is/are manufactured by direct-heat resistance furnace? P. SiC Q. Graphite R. Steel

  1. P only

  2. Q only

  3. R only

  4. P and Q

  5. Q and R
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Direct-heat resistance furnace is an electric furnace in which heat is generated directly in the material to be heated. Direct-heat resistance furnaces are used for melting and heating of metals. Typical applications are- manufacture of graphite, carbon and various carbides like- silicon-carbide, boron-carbide, etc. Bessemer convertor is a pear shaped furnace, made up of steel plates and lined with silicious material. It is used in the manufacture of steel and in the metallurgy of copper.

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