Page 24 - FLUID MECHANICS EBOOK FINAL (2)

FLUID MECHANICS

4. Define the term of Fluid.

5. Define the following terms:

a. Fluid

b. Fluid statics

c. Fluid dynamic

6. Explain the difference between the fluid, gas and solid condition.

7. List FOUR types of pressure.

8. Define gauge pressure, atmospheric pressure and absolute pressure.

Ans. SEE LECTURE Page 3/4)

9. What is the pressure gauge of air in the cylinder if the atmospheric gauge is 101.3

2
2
2
kN/m and absolute pressure is 512 kN/m . Ans. 410.7 kN/m

2
10. Calculate the pressure gauge (N/m ) of air in the cylinder if the atmospheric pressure is
2
2
2
101.3 kN/m and absolute pressure is 460 kN/m . Ans. 358700N/m

11. A Bourdon pressure gauge attached to a boiler located at sea level shows a reading

pressure of 7 bar. If atmospheric pressure is 1.013 bar, what is the absolute pressure in
2
2
that boiler (in kN/m ) ? Ans. 801.3kN/m

12. Gas column height taken from a pressure gauge is equivalent to 68mm of water and

the mercury height due to atmospheric pressure is 750mm of mercury. Calculate the

2
2
absolute pressure of the gas in kN/m . Ans. 100.73kN/m

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