Question 1 5 Marks The air-oil-water system shown below is at 21°C. Gauge A reads 11 kPa and gauge B reads 14 kPa less than Gauge C. (a) Calculate the density of the oil. What is the reading of Gauge C? (3 marks) (2 marks) (b) air 1 m www 0.65 m oil 0.65 m water 1m B Sc

Referring to the figure shown below, water contained in a piston-cylinder assembly, initially at 1.5 bar and a quality of 40%, is heated at constant pressure until the piston hits the stops. Heating then continues until the water is saturated vapor. The initial height, L1, is 0.05 m and the change in height, L2, is 0.03 m. Patm-1 bar Piston Water P₁ = 1.5 bar L₁ For the overall process of the water, evaluate the work and heat transfer, each in kJ/kg. Kinetic and potential effects are negligible.

What height of mercury column is equivalent to a pressure of 74 psig? The density of mercury is 498 Ibm/ft3. a. 11.28 ft O b. 21.40 ft c. 16.77 ft O d. 10.70 ft