Which one of the following industries uses limestone as a raw material.
(a) Aluminium
(b) Cement
(c) Sugar
(d) Jute
ANS (b) Cement

Which one of the following agencies markets steel for the public sector plants?
(a) HAIL
(b) SAIL
(c) TATA Steel
(d) MNCC
ANS (b) SAIL

Which one of the following industries uses bauxite as a raw material?
(a) Aluminium
(b) Cement
(c) Jute
(d) Steel
ANS (a) Aluminium

 Which one of the following industries manufactures telephones, computer, etc?
(a) Steel
(b) Electronic
(c) Aluminium
(d) Information Technology
ANS (b) Electronic

Manufacturing is the process in which goods are produced after processing the various raw materials.