question_answer

Consider the following statements:

A tube, with the section diverging in the direction of flow, can be used as

1. Supersonic nozzle

2. Subsonic nozzle

3. Supersonic diffuser

4. Subsonic diffuser

Select the correct answer using the codes given below:

A) 1 alone             

B) 3 alone

C) 1 and 4            

D) 2 and 3