Practice Incompressible Flow (4.1.2) - Mass Conservation Equation - Fluid Mechanics

Practise this section

9 questions

Flashcard drill
2 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
Sign up to start the exercise
Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
Sign up to start the quiz

6 sample questions

Question 1.
Define incompressible flow.
Show hintHide hint
Think about how pressure affects density in liquids.
Question 2.
What does the mass conservation principle state?
Show hintHide hint
Look for relationships in flow continuity.
3Question 3.
What principle states that mass inflow equals outflow in a fluid system?
- Pressure Principle
- Mass Conservation Principle
- Bernoulli's Principle
Show hintHide hint
Consider the flow of mass in and out.
4Question 4.
True or False: Incompressible flow means the fluid’s density changes with pressure.
- True
- False
Show hintHide hint
Think about how liquids behave under pressure.
Question 5.
A fluid flows through a pipe with an area of 0.02 m² at a velocity of 10 m/s. If the area decreases to 0.01 m², what will be the new velocity?
Show hintHide hint
Apply the principle of conservation of mass.
Question 6.
A force of 300 N is applied by a water jet on a perpendicular surface at a velocity of 15 m/s. Calculate the flow rate of the jet.
Show hintHide hint
Check units as you convert mass rate into volume flow rate.

5 more questions in this section. Enroll free to practise them all.