16) The turbine, in which the general direction of the steam flow is parallel to the turbine axis, is called axial flow turbines

17) The critical pressure gives the velocity of steam at the throat equal to the velocity of sound.

18) The reheat factor is the ratio of the

19) The turbine blades do not change the direction of steam issuing from the nozzle.

20) Thermal equilibrium means that the flow of steam is