A hemispherical tank of diameter 4 m contains water up to height of 2 m. An orifice of diameter of 50 mm is provided at the bottom. Find the time required by water (a) to fall from 2.0 m to 1.0 m (b) to completely emptying the tank. EL 2.90EL 1.00-0.95C 1003. Air at 15°C flows through a large duct and thence through a 75-mm-diameter hole in the thin metal (c= 0.62). A U-tube gage containing water registers 31.7 mm. Considering the specific weight of airconstant, what is the flow through the opening?4. When 4.20 cfs of water flows through a 12" by 6" Venturi meter, the differential gage records adifference of pressure heads of 7.20 ft.What is the indicated coefficient of discharge of the meter?5. Water at 30°C flows at the rate of 0.046 m /s through the through a 150-mm pipe in which along-radius flow nozzle 75 mm in diameter. What is the deflection of the mercury in the differentialgage? Assume C= 0.986. The specific gravity of the manometer fluid is 1.52. C,= 0.98. Determine the flow rate.6 in.3 in.2 in.SG = 1.52IFIGURE P8.1227. A circular tank of diameter 3 m contains water up to a height of 4 m. The tank is provided withan orifice of diameter 400 mm at the bottom. Find the time taken by water : (a) to fall from 4 mto 2 m. (b) for completely emptying the tank Take Ca= 0.68. A hemispherical tank of diameter 4 m contains water up to height of 2 m. An orifice of diameterof 50 mm is provided at the bottom. Find the time required by water (a) to fall from 2.0 m to 1.0m (b) to completely emptying the tank.9. A cylindrical tank is having a hemispherical base. The height of the cylinder is 4 m and thediameter is 3 m. At the bottom of the tank is an orifice of 300 mm diameter is fitted. Find thetime to completely emptying the tank. Take C= 0.63/410. For the tank shown in the given figure , using an average coefficient of discharge of 0.65 for the2" diameter orifice, how long will it take to lower the tank level 4 ft. SET B- FOR ODD SEAT NUMBERSInstructions: Solve the given problems. For each problem provide the appropriate diagram/illustrationsto support your solution. Solutions without the necessary diagram/drawing/illustrations will not begiven credit.1. What size standard orifice is required to discharge 0.016 m /s of water under a head of 8.69 m?2. Refer to Figure below. Heavy fuel oil at 60°F flows through the 3"-diameter end-of-pipe orifice,causing the deflection of the mercury in the U-tube gage. Determine the power in the jet.EL I1.25EL. 10.00EL 2.90 UEL 1O0C 0.9s-1003. Air at 15°C flows through a large duct and thence through a 75-mm-diameter hole in the thin metal (c= 0.62). A U-tube gage containing water registers 31.7 mm. Considering the specific weight of airconstant, what is the flow through the opening?4. When 4.20 cfs of water flows through a 12" by 6" Venturi meter, the differential gage records adifference of pressure heads of 7.20 ft.What is the indicated coefficient of discharge of the meter?5. Water at 30°C flows at the rate of 0.046 m /s through the through a 150-mm pipe in which along-radius flow nozzle 75 mm in diameter. What is the deflection of the mercury in the differentialgage? Assume C= 0.986. The specific gravity of the manometer fluid is 1.52. C,= 0.98. Determine the flow rate.6 in.3 in.2 in.SG = 1.52IFIGURE P8.1227. A circular tank of diameter 3 m contains water up to a height of 4 m. The tank is provided withan orifice of diameter 400 mm at the bottom. Find the time taken by water : (a) to fall from 4 mto 2 m. (b) for completely emptying the tank Take Ca= 0.68. A hemispherical tank of diameter 4 m contains water up to height of 2 m. An orifice of diameterof 50 mm is provided at the bottom. Find the time required by water (a) to fall from 2.0 m to 1.0m (b) to completely emptying the tank.9. A cylindrical tank is having a hemispherical base. The height of the cylinder is 4 m and thediameter is 3 m. At the bottom of the tank is an orifice of 300 mm diameter is fitted. Find thetime to completely emptying the tank. Take C= 0.6

From property,x2 = R2 - ( R - H )2 x2 = 2RH - H2Surface area of tank at time t (A) = πx2= π 2RH -…

A hemispherical tank of diameter 4 m contains water up to height of 2 m. An orifice of diameter of 50 mm is provided at the bottom. Find the time required by water (a) to fall from 2.0 m to 1.0 m (b) to completely emptying the tank.

A hemispherical tank of diameter 4 m contains water up to height of 2 m. An orifice of diameter of 50 mm is provided at the bottom. Find the time required by water (a) to fall from 2.0 m to 1.0 m (b) to completely emptying the tank.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Question

A hemispherical tank of diameter 4 m contains water up to height of 2 m. An orifice of diameter
of 50 mm is provided at the bottom. Find the time required by water (a) to fall from 2.0 m to 1.0
m (b) to completely emptying the tank.

EL 2.90
EL 1.00
-0.95
C 100
3. Air at 15°C flows through a large duct and thence through a 75-mm-diameter hole in the thin metal (c
= 0.62). A U-tube gage containing water registers 31.7 mm. Considering the specific weight of air
constant, what is the flow through the opening?
4. When 4.20 cfs of water flows through a 12" by 6" Venturi meter, the differential gage records a
difference of pressure heads of 7.20 ft.What is the indicated coefficient of discharge of the meter?
5. Water at 30°C flows at the rate of 0.046 m /s through the through a 150-mm pipe in which a
long-radius flow nozzle 75 mm in diameter. What is the deflection of the mercury in the differential
gage? Assume C= 0.98
6. The specific gravity of the manometer fluid is 1.52. C,= 0.98. Determine the flow rate.
6 in.
3 in.
2 in.
SG = 1.52
IFIGURE P8.122
7. A circular tank of diameter 3 m contains water up to a height of 4 m. The tank is provided with
an orifice of diameter 400 mm at the bottom. Find the time taken by water : (a) to fall from 4 m
to 2 m. (b) for completely emptying the tank Take Ca= 0.6
8. A hemispherical tank of diameter 4 m contains water up to height of 2 m. An orifice of diameter
of 50 mm is provided at the bottom. Find the time required by water (a) to fall from 2.0 m to 1.0
m (b) to completely emptying the tank.
9. A cylindrical tank is having a hemispherical base. The height of the cylinder is 4 m and the
diameter is 3 m. At the bottom of the tank is an orifice of 300 mm diameter is fitted. Find the
time to completely emptying the tank. Take C= 0.6
3/4
10. For the tank shown in the given figure , using an average coefficient of discharge of 0.65 for the
2" diameter orifice, how long will it take to lower the tank level 4 ft.

SET B- FOR ODD SEAT NUMBERS
Instructions: Solve the given problems. For each problem provide the appropriate diagram/illustrations
to support your solution. Solutions without the necessary diagram/drawing/illustrations will not be
given credit.
1. What size standard orifice is required to discharge 0.016 m /s of water under a head of 8.69 m?
2. Refer to Figure below. Heavy fuel oil at 60°F flows through the 3"-diameter end-of-pipe orifice,
causing the deflection of the mercury in the U-tube gage. Determine the power in the jet.
EL I1.25
EL. 10.00
EL 2.90 U
EL 1O0
C 0.9s
-100
3. Air at 15°C flows through a large duct and thence through a 75-mm-diameter hole in the thin metal (c
= 0.62). A U-tube gage containing water registers 31.7 mm. Considering the specific weight of air
constant, what is the flow through the opening?
4. When 4.20 cfs of water flows through a 12" by 6" Venturi meter, the differential gage records a
difference of pressure heads of 7.20 ft.What is the indicated coefficient of discharge of the meter?
5. Water at 30°C flows at the rate of 0.046 m /s through the through a 150-mm pipe in which a
long-radius flow nozzle 75 mm in diameter. What is the deflection of the mercury in the differential
gage? Assume C= 0.98
6. The specific gravity of the manometer fluid is 1.52. C,= 0.98. Determine the flow rate.
6 in.
3 in.
2 in.
SG = 1.52
IFIGURE P8.122
7. A circular tank of diameter 3 m contains water up to a height of 4 m. The tank is provided with
an orifice of diameter 400 mm at the bottom. Find the time taken by water : (a) to fall from 4 m
to 2 m. (b) for completely emptying the tank Take Ca= 0.6
8. A hemispherical tank of diameter 4 m contains water up to height of 2 m. An orifice of diameter
of 50 mm is provided at the bottom. Find the time required by water (a) to fall from 2.0 m to 1.0
m (b) to completely emptying the tank.
9. A cylindrical tank is having a hemispherical base. The height of the cylinder is 4 m and the
diameter is 3 m. At the bottom of the tank is an orifice of 300 mm diameter is fitted. Find the
time to completely emptying the tank. Take C= 0.6

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