Đề thi giữa kỳ học phần Fluid Mechanics | Trường Đại học Quốc tế, Đại học Quốc gia Thành phố Hồ Chí Minh

INTERNATIONAL UNIVERSITY
Department of Civil Engineering
Quarter 6, Linh trung Ward, Thu Duc District, HoChiMinh City MIDTERM EXAMINATION
DATE: ……………, 2018 – Duration: 60 minutes
SUBJECT: Fluid Mechanics
Dean of Department of Civil Engineering Lecturer: Signature: Signature: Assoc. Prof. Lê Văn Cảnh Assoc. Prof. Phạm Ngọc
Note: (This is an OPENED - BOOK examination)
No dictionary and internet access
Discussion is strictly prohibited
Do not copy from friends Calculator is allowed QUESTION 1: (20 marks)
Ten cubic feet of air at 1000F and 50 lb/in.2 absolute are compressed isothermally to 2
cubic feet. What is the pressure when the air is reduced to this volume? What is the
modulas of elasticity at the beginning and end of the compression? QUESTION 2: (20 marks)
A space of 2-in. width between two large plane surfaces is filled with oil at 60,50 F. What
force is required to drag a very thin plate of 5 ft2 area between the surfaces at speed of
0,5 ft/sec if this plate remains equidistant from the two surfaces? If it is distance of 0,5 in from one of the surfaces? 1
QUESTION 3 (20 marks):
With the manometer reading as shown, calculate px QUESTION 4: (40 marks)
This half conical buttress is used to support a half cylindrical
tower on the upstream face of a dam. Calculate the vertical
and horizontal components of force exerted by the water on the buttress Good luck! 2