UPSC Civil Service Exam Questions - Civil Engineering Questions and Answers

Home / Civil Engineering / UPSC Civil Service Exam Questions :: Discussion

Discussion :: UPSC Civil Service Exam Questions

Consider the following statements relating to compressible flow :
1. In a contracting conduit, sonic velocity is reached in the minimum cross-sectional area.
2. In a contracting conduit, supersonic velocities are reached only in the expanding section downstream from the minimum section.
3. An expansion shockwave is physically possible and can be exhibited.
4. In the Laval nozzle it is possible to obtain a velocity greater than the velocity of sound in the expanding section of nozzle.
Of these statements :

1, 2 and 3 are correct

1, 2 and 4 are correct

2, 3 and 4 are correct

1, 3 and 4 are correct

View Answer