Question

q17. which is not the assumption for an ideal fluid
a. non - viscous
b. steady
c. compressible
d. irrotational
q.18. bernoullis equation shows that the pressure of a fluid increases as the speed of the fluid
a. increases
b. decreases
c. equals
d. none of above
q.19. cohesive and adhesive forces are two types of
a. tensions forces
b. attractive forces
c. repulsive forces
d. intermolecular forces

Explanation:

Q17. Ideal fluids are non - viscous, steady, and irrotational, and are assumed to be incompressible.
Q18. Bernoulli's equation shows pressure decreases as fluid speed increases.
Q19. Cohesive and adhesive forces are types of intermolecular forces.

Answer:

Q17. C. compressible
Q18. B. decreases
Q19. D. intermolecular forces