Air is drawn into a windtunnel used for testing cars as shown in the Figure. Determine the manometer reading, h, when the velocity in the test section is 60 mph. Note that there is a 1inch column of oil on the water in the manometer.
Wind tunnel
60 mph
Open
h
1 in.
Water
Oil ($$SG = 0.9$$)
Fan
0.75 inch
0.54 inch
0.67 inch
0.91 inch