QUESTION 5 A circular tank of diameter 80 cm contains water up to a height of 12 000 mm. The tank is provided with an orifice of diameter 0.1 m at the bottom. Find the time taken by water. (1) to fall from 12 000 mm to 2 000 m (ii) for completely emptying the tank. Take Ca = 0.57 [10] QUESTION 6 In a free cylindrical vortex flow, at a point in the fluid at a radius of 0.20 m and at a height of 0.1 m, the velocity and pressures are 10 m/s and 1.1618 atm absolute. Find the pressure at a radius of 400 mm and at a height of 200 mm. The fluid is air with density equal to 1.24 kg/m³ [10]
QUESTION 5 A circular tank of diameter 80 cm contains water up to a height of 12 000 mm. The tank is provided with an orifice of diameter 0.1 m at the bottom. Find the time taken by water. (1) to fall from 12 000 mm to 2 000 m (ii) for completely emptying the tank. Take Ca = 0.57 [10] QUESTION 6 In a free cylindrical vortex flow, at a point in the fluid at a radius of 0.20 m and at a height of 0.1 m, the velocity and pressures are 10 m/s and 1.1618 atm absolute. Find the pressure at a radius of 400 mm and at a height of 200 mm. The fluid is air with density equal to 1.24 kg/m³ [10]
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
Related questions
Question
100%
Fluid
![© 31% D 7:45
Hint:
1. Use the moody chart to calculate the friction coefficients and subsequently the
head losses for both pipe cases.
2. Compare the power requirements for each scenario and use that to calculate the
savings in energy.
[20]
QUESTION 5
A circular tank of diameter 80 cm contains water up to a height of 12 000 mm. The tank
is provided with an orifice of diameter 0.1 m at the bottom. Find the time taken by water.
(i)
to fall from 12 000 mm to 2 000 m
(ii)
for completely emptying the tank. Take Ca = 0.57
[10]
QUESTION 6
In a free cylindrical vortex flow, at a point in the fluid at a radius of 0.20 m and at a height
of 0.1 m, the velocity and pressures are 10 m/s and 1.1618 atm absolute. Find the
pressure at a radius of 400 mm and at a height of 200 mm. The fluid is air with density
equal to 1.24 kg/m3
[10]
5
Formulae Sheet
Flow in pipes and Bernoulli Equation
+ z, =
+*+ 22 + h, + Ehị
pg
pg
29
Q = VA
m = pVA
5 of 10
Small Diamter + 2 (thickness) = Bigger Diameter
P2 - P = pgh
(P2 – P1)ar*
Lamina Ela Data
||](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F4e90df52-3d40-448d-a328-1d9db83e80df%2F7cb6f8bf-6790-418a-93a7-f5c1347c8341%2F2n89pjl_processed.jpeg&w=3840&q=75)
Transcribed Image Text:© 31% D 7:45
Hint:
1. Use the moody chart to calculate the friction coefficients and subsequently the
head losses for both pipe cases.
2. Compare the power requirements for each scenario and use that to calculate the
savings in energy.
[20]
QUESTION 5
A circular tank of diameter 80 cm contains water up to a height of 12 000 mm. The tank
is provided with an orifice of diameter 0.1 m at the bottom. Find the time taken by water.
(i)
to fall from 12 000 mm to 2 000 m
(ii)
for completely emptying the tank. Take Ca = 0.57
[10]
QUESTION 6
In a free cylindrical vortex flow, at a point in the fluid at a radius of 0.20 m and at a height
of 0.1 m, the velocity and pressures are 10 m/s and 1.1618 atm absolute. Find the
pressure at a radius of 400 mm and at a height of 200 mm. The fluid is air with density
equal to 1.24 kg/m3
[10]
5
Formulae Sheet
Flow in pipes and Bernoulli Equation
+ z, =
+*+ 22 + h, + Ehị
pg
pg
29
Q = VA
m = pVA
5 of 10
Small Diamter + 2 (thickness) = Bigger Diameter
P2 - P = pgh
(P2 – P1)ar*
Lamina Ela Data
||
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