Question { 8189 }

what is basic difference between impulse turbine and
reaction turvine

Answer

in impulse turbine the rotation of the turbine is only due
to the impact of the jet from a nozzle( newtons 2 law). in
reaction turbine the profile of the blades is such that ke
is converted to pressure head. so a reaction turbine apart
from having energy from direct impact of jet it also has
energy gained wen ke is converted to pressure energy. so the
difference is due to blade profiles.........

Question { 6267 }

if you are standing on 30th floor & you asked to drink a
water through straw .can you? water is in glass at the
ground floor.

Answer

I think we can suck the water. though my ans is does not hav
technical proofs. the only thing u hav to do is u hav to
suck off the air in the straw first in steps. ie. suck some
air in the straw then close it. then take a breath and do
that again until water rises to the top. each time u hav to
keep the other end of the straw closed by ur mouth when
sucking and with ur hand wen u r taking a breath. if u wish
to do this at one go u must first exhale out ur lungs then
suck hard so that iar in the straw goes into ur lungs. what
say.........