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Midterm test of fluid mechanics

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.

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Midterm test of fluid mechanics

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  1. 1) 2) 3) 4) Midterm test of fluid mechanics Given: For water at 20 oC g= 9789 N/m3r = 998.2 kg/m3 SG=0.9982 Answer:g= 9770 N/m3r = 996 kg/m3 SG=0.996 Answer: (a) 4290 N (b) 161 lb Answer:g= 16 N/m3r = 1.63*103 kg/m3 SG=1.63 Answer: (a) 4.5 N (b) 5.24 N

  2. 6) 7) 8) 5) Answer:m= 1.36*10-4 lb s/ft3 Answer:h=2scosq/g(r0-ri) Answer:PA= 374 lb/ft2, PB= -125 lb/ft2 PC = -125 lb/ft2 PD = -624 lb/ft2 Answer:437 mm

  3. 10) 11) 9) Answer:0.202 m Answer: (a) 8990 lb (b) 8310 lb Answer: (a) 3.44 m beloe surface (b) 1.107 m to right of N (c)933 kN, 40.8o

  4. 13) 14) 12) Answer: 436 kN Answer: dm/dt = -16.4 kg/s Answer: (a) dh/dt = (Q1+Q2-Q3)/(pd2/4) (b) V2=4.13 m/s

  5. 17) 15) 16) Answer: Fx = 750 N, Fy = 14 N Answer: Fbolt = 163 N Answer: 106 lbf

  6. 20) 18) 19) Answer: Fbolt = 3100 N Answer: a= 5.66 ft/s2 Answer: Vav= 1.41 ft/s

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