Work and Education

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This group work seeking and junior Mechanical Engineer exam MCQ Question ? Such a Rail, Mint, Sail, Ssc and Chargman ect.

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2. The most important ore of Aluminium is–

Bauxite
Calcite
Galena
Calamine
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1. Which of the following is the lightest metal ?

Lead
Copper
Silver
Lithium
Mercury
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