Superheated steam enters an insulated turbine shown below at 4,000 kPa and
500
∘
C
and leaves as saturated vapor at 20 kPa. If the mass flux is 6 kg/sec, determine the maximum power output and the exiting velocity. Neglect the changes in KE and PE between the inlet and outlet.
Thermal stresses are developed in a metal when its a) initial temperature is changed b) final temperature is changed c) density is changed d) thermal deformation is prevented e) expansion is prevented f) contraction is prevented
Manometers are good examples of measuring instruments, nowadays they are not as common as before. a)-capacitive probe gauges b)-gravitational gauges deformation ) gauges d)-digital gauges
Which of the following ziegler nichols tuning methods the response of the controller to a step input should exhibit an s-shaped curve? a)-open loop mode b)-closed loop mode c)-both modes (open & closed) d)-none of the modes (open & closed)