61,The inclined water guage can read upto?,
2 mm,
1.5 mm,
1
mm,
0.2 mm,
62,The velocity of air flowing in a drift where the velocity
pressure is 36 mm is?,
36 m/s,
24 m/s,
42 m/s,
48 m/s,
63,In the centrifugal fan smooth flow air and conversion of
velocity energy into pressure energy takes place?
In spiral casing,
In the
blades,
At the tip of the blades,
In the evasee,
64,In the centrifugal
fan reentry of of the discharged air is prevented by?,
spiral
casing,
blades,
evasee,
eye,
65,With a centrifugal fan for a given quantity of air
increase of efficiency of the and reduction in cost of power can be obtained
with?,
well designed blades of the fan,
well designed spiral casing,
well designed
evasee,
well designed eye of the impeller,
Ans: 4, 2 ,4 ,3, 3
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