UNIVERSITY OF ZAMBIA
SCHOOL OF ENGINERING
DEPARTMENT OF CIVIL AND ENVIRONMENTAL ENGINEERING
CEE3311 ASSIGNMENT NO. 3
1.
A closed cylindrical tank filled with water has a hemispherical dome and is
connected to an inverted piping system as shown in the fig below. The liquid in the
top part of the piping system has a specific gravity of 0.8, and the remaining parts of
the system are filled with water. If the pressure gage reading at A is 60 kPa, determine
(a) the pressure in pipe B, and (b) the pressure head, in millimetres of mercury, at the
top of the dome (point C).
2. Find the gauge reading at L and M in figure 2 if the local atmospheric pressure is 755mm of
mercury. Assume the vapour pressure of mercury and pressure due to the short columns of
air to be negligible.
3. Water and oil flow in horizontal pipelines. A double U-tube manometer is connected
between the pipelines, as shown in the figure. Calculate the pressure difference between
the water pipe and the oil pipe.
4. Refer to Figure below, The pressure head at AA is 0.091m of water, and the unit weights of
gas and air are 5.50 and 12.35N/m3, respectively. Determine the reading of the water in the
U-tube gauge that measures the gas pressure at level B.
Due Date: 28th March, 2023, 16:00hrs PM
Only hardcopy will be accepted and Late submissions will attract loss in marks!!!!