Mineral matter, ‘ M ‘ and ash percentage ‘ A ‘ in coal are roughly related as A. M =

Mineral matter, ‘ M ‘ and ash percentage ‘ A ‘ in coal are roughly related as A. M = | savvyessaywriters.org

Mineral matter, 'M' and ash percentage 'A' in coal are roughly related as

A. M = 1.8 A
B. M = 0.5 A
C. M = 1.1 A
D. M = A

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39.

Blast furnace gas constitutes mainly of

A. N2 & CH4
B. N2 & H2
C. N2 & CO
D. CH4 & CO2

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40.

A good coking coal should have high __________ content.

A. ash
B. sulphur & phosphorus
C. moisture
D. none of these

 

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