midterm test of fluid mechanics
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1). 2). 3). 4). Midterm test of fluid mechanics. Given: For water at 20 o C g = 9789 N/m 3 r = 998.2 kg/m 3 SG=0.9982. Answer: g = 9770 N/m 3 r = 996 kg/m 3 SG=0.996. Answer: (a) 4290 N (b) 161 lb. Answer: g = 16 N/m 3 r = 1.63*10 3 kg/m 3 SG=1.63. - PowerPoint PPT PresentationTRANSCRIPT
1)Midterm test of fluid mechanics
2)
3)
Given: For water at 20 oC = 9789 N/m3 = 998.2 kg/m3 SG=0.9982
Answer: = 9770 N/m3 = 996 kg/m3 SG=0.996
Answer: (a) 4290 N (b) 161 lb
Answer: = 16 N/m3 = 1.63*103 kg/m3 SG=1.63
4)
Answer: (a) 4.5 N (b) 5.24 N
5)
Answer: = 1.36*10-4 lb s/ft3
6)
7)
8)
Answer: h=2cos/(r0-ri)
Answer: PA = 374 lb/ft2, PB= -125 lb/ft2
PC = -125 lb/ft2
PD = -624 lb/ft2
Answer: 437 mm
9)
Answer: 0.202 m
Answer: (a) 8990 lb (b) 8310 lb
10)
11)
Answer: (a) 3.44 m beloe surface (b) 1.107 m to right of N (c) 933 kN, 40.8o
12)
Answer: 436 kN
13)
14)
Answer: dm/dt = -16.4 kg/s
Answer: (a) dh/dt = (Q1+Q2-Q3)/(d2/4) (b) V2=4.13 m/s
15)
16)
Answer: Fx = 750 N, Fy = 14 N
Answer: Fbolt = 163 N
17)
Answer: 106 lbf
18)
19)
Answer: Fbolt = 3100 N
Answer: a = 5.66 ft/s2
20)
Answer: Vav = 1.41 ft/s