PRESSURE CALIBRATION PROCEDU

Question 1

Record the cross-sectional area and the mass of the plunger (piston) and the weight
platform. The details are written on the label fixed to the apparatus.

Answer 1

1

Question 2

Create a blank table of results similar to Table.

Answer 2

2

Question 3

Ensure the apparatus is level and that you have no trapped air in the tube or cylinder.

Answer 3

3

Question 4

Add the weights (masses) to the weight platform in approximately eight increments up to a maximum of 5.2 kg. Do not exceed 5.2 kg. Always load the masses gradually,
do not drop then into the platform. Record the pressure gauge reading as each mass
is added. To prevent the piston sticking, rotate the piston gently as each mass is
added.

Answer 4

4

Question 5

Remove the masses in the reverse order as you added them. Record the pressure
gauge reading as you remove each mass.

Answer 5

5

Question 6

From your results, calculate the actual pressure (p) and total mass (M) as described in
section 3. Plot graphs of the gauge pressure against actual pressure and gauge error
against actual pressure.

Answer 6

6