Eom-2 paper-2

11,Black damp is also called as?,

stink damp or stythe,

Marsh gas,

choke damp,

white damp,

Ans:3

12,For every 5% of black damp the light is diminished by ?,

20 %,

30 %,

40 %,

50 %,

Ans:2

13,The light is extinguished when black damp % is?,

17 %,

17.5 %,

21 %,

20 %,

Ans:1

14,Co is aslo called as?,

Black damp,

Marsh gas,

Stink damp,

White damp,

Ans:4

15,CO forms an explosive mixture with air when present within the range of nearly(by vol)?,

5 - 15,

4.5 - 45,

12 - 75,

4.5 - 75,

Ans:3