On this log p - h diagram, what does the green highlighted curve represent?

Select all statements that are true about CLOSED feedwater heaters:

Select all statements that are true about OPEN feedwater heaters:

An open feedwater heater operates at 0.6 MPa, where 2 streams enter and one leaves. One (1) of the entering streams is a 2-phase liquid-vapour mix. The exiting stream from the heater (3) is a SATURATED LIQUID.

What must be the state of the other entering stream (2)?

An adiabatic compressor takes in air at p₁, compresses it with a work input, and outputs the air at p₂.

For the lowest possible work requirement, what is true about the entropies before and after compression (s₁ and s₂)?

A non-adiabatic compression device (exchanges both work and heat) takes in air at p₁ and outputs it at p₂.

For the lowest possible work requirement, what is true about the entropies before and after compression (s₁ and s₂)?

What is true about the utilization factor ε_u in cogeneration plants?

$$\varepsilon_u=\frac{w_{net}+q_P}{q_B}\$$

Which of the following are advantages of a Bypass Turbofan engine compared to a Standard Turbojet engine?

The exhaust of this Laval nozzle has Ma = 3. What is the velocity at the throat?

A Laval Nozzle has sonic flow in the throat but a subsonic exit velocity. Select all statements that are possible.

Which of these related courses would you like to take in the future? (Select any that you've already taken too)

Thank you!!!