51,Geothermic gradient in indian coal seam is....?,
1 deg c per 15 m,
1 deg c per 38m,
1 deg c per 50 m,
none,
52,Upto what depth from the surface the temparature is constant?,
10m,15m,20m,25m,
53,The speed of the centrifugal fan is?,
1 to 100 rpm,
100 to 300 rpm,
300 to 1000 rpm,
above 1000 rpm,
54,The mostly used blade type in centrafugal fan is?,
backward,
radial,
forward,
none,
55,The presence of Nitrous fumes are detected by?,
The rotten eggs smell,
sweet smell,
metallic taste on tongue,
head ache,
Ans: 2, 2, 2, 1, 4
No comments:
Post a Comment