1. MET212- Fluid Mechanics & Machines
1
ST
Semester, September 2011
Assignment # 1
Name…… ……… ……… …… ………… I.D No.…….… ………
Due date … … …
Submit this assignment in a separate paper as an individual work. If required take the
standard values for any parameters during your calculation.
Q.1: Tabulate any five common properties of fluid with their symbles generally used in fluid
mechanics, definition, measuring units in both SI and BG systems , dimension and
formulas for calculation.
Q.2: Calculate the a) Specific weight, b) Specific gravity and c) Density of 200 ft
3
of oil
weighs 10520 lb.
Q.3: A liquid poured into a graduated cylinder is found to weight 8 N when occupying a
volume of 500 ml. Calculate its Densiity, specific weight and specific gravity.
Q.4: A fluid (water) having a dynamic viscosity of 0.38 N.s/m
2
and SG 0.91 flows through a
25mm diameter pipe with a velocity of 2.6m/s. Determine the Reynolds number (Re) using
SI units and indictae what type of flow is this one.
Q.5: A fluid can indicate that it contains 350 cm3
fluids. The mass of full can of fluid is
0.369 Kg, while an empty can weighs 0.153 N. Determine the specific weight, density and
specific gravity of the fluid in the can. Express your results in SI units.
MET212-HW1 Dr. Adel Afify September, 2011
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2. Q.6: Determine the density, specific gravity, and mass of the air in a room whose
dimensions are shown in Figure below at 100 kN/m2
and 25º C. Consider air as an ideal
gas and the gas constant of air is R= 0.287 kPa. m3
/ kg K.
Q.7: Determine the density, specific gravity, and mass of the air in a room whose
dimensions are shown in Figure below at 8 bar and 26º C. Consider air as an ideal
gas and the gas constant of air is R= 0.287 kPa. m3
/ kg K
MET212-HW1 Dr. Adel Afify September, 2011