The flow of blood in a large artery of an anesthetised dog is diverted through a Venturi meter. The wider part of the meter has a cross-sectional area equal to that of the artery. A = 8 mm2. The narrower part has an area a = 4 mm2. The pressure drop in the artery is 24 Pa. What is the speed of the blood in the artery?

(Density of blood = 1.06×103 kg m-3)

1.   145 m/s

2.   0.145 m/s

3.   123 m/s

4.   0.123 m/s

Subtopic:  Bernoulli's Theorem |
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A fully loaded Boeing aircraft has a mass of 3.3×105 kg. Its total wing area is 500 m2. It is in level flight with a speed of 960 km/h. The pressure difference between the lower and upper surfaces of the wings is: [Given: Density of air, ρ = 1.2 kgm-3   and g = 9.8 m/s2]

1.  6.5×104 Nm-2

2.  6.5×103 Nm-2

3.  6.5×105 Nm-2

4.  5.5×105 Nm-2

Subtopic:  Bernoulli's Theorem |
 63%
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A fully loaded Boeing aircraft has a mass of 3.3×105 kg. Its total wing area is 500 m2. It is in level flight with a speed of 960 km/h. The fractional increase in the speed of the air on the upper surface of the wing relative to the lower surface is:

1. 0.008 2. 0.08
3. 0.8 4. 8.0
Subtopic:  Bernoulli's Theorem |
 59%
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