Right
Wrong
to control the pressure variations due to rapid changes in the pipe line flow
to eliminate water hammer possibilities
to regulate flow of water to turbines by providing necessary retarding head of water
all of the above
real fluid
ideal fluid
newtonian fluid
non-newtonian fluid
avoid the tendency of breaking away the stream of liquid
to minimise frictional losses
avoid the tendency of breaking away the stream of liquid and to minimise frictional losses
none of these
atmospheric pressure
gauge pressure
absolute pressure