02: The water level in a tank is 20 m above the ground as shown in H3.1. A hose is connected to the bottom of the tank, and the nozzle at the end of the hose is pointed straight up. The tank cover is airtight, and the air pressure above the water surface is 2 atm gage. The system is at sea level. Determine the maximum height to which the water stream could rise. Take the density of water to be 1000 kg/m³. Answer: 40.7 m 2 atm 20 m Figure: H3.1 03: Air is flowing through a Venturi meter whose diameter is 2.6 in at the entrance part (location 1) and 1.8 in at the throat (location 2) as shown in Figure H3.2. The gage pressure is measured to be 12.2 psia at the entrance and 11.8 psia at the throat. Neglecting frictional effects, show that the volume flow rate can be expressed as, 12.2 psia 11.8 psia v=Az 2(P₁-P₂) P(1-A/A) Air 2.6 in 1.8 in Figure: H3.2 and determine the flow rate of air. Take the air density to be 0.075 lbm/ft³. Answer: 4.48 ft³/s 04: The pump in Figure H3.3 generates a water jet oriented to travel a maximum horizontal distance. The diameter of pull pipe is 10 cm and the jet diameter is 5 cm. System friction head losses are 6.5 m. The jet may be approximated by the trajectory of frictionless particles. What power must be delivered by the pump? Jet D₁ = 5 cm 25 m D= 10 cm 15 m 2 m Answer: 26 kW Pump 3 Figure: H3.3
02: The water level in a tank is 20 m above the ground as shown in H3.1. A hose is connected to the bottom of the tank, and the nozzle at the end of the hose is pointed straight up. The tank cover is airtight, and the air pressure above the water surface is 2 atm gage. The system is at sea level. Determine the maximum height to which the water stream could rise. Take the density of water to be 1000 kg/m³. Answer: 40.7 m 2 atm 20 m Figure: H3.1 03: Air is flowing through a Venturi meter whose diameter is 2.6 in at the entrance part (location 1) and 1.8 in at the throat (location 2) as shown in Figure H3.2. The gage pressure is measured to be 12.2 psia at the entrance and 11.8 psia at the throat. Neglecting frictional effects, show that the volume flow rate can be expressed as, 12.2 psia 11.8 psia v=Az 2(P₁-P₂) P(1-A/A) Air 2.6 in 1.8 in Figure: H3.2 and determine the flow rate of air. Take the air density to be 0.075 lbm/ft³. Answer: 4.48 ft³/s 04: The pump in Figure H3.3 generates a water jet oriented to travel a maximum horizontal distance. The diameter of pull pipe is 10 cm and the jet diameter is 5 cm. System friction head losses are 6.5 m. The jet may be approximated by the trajectory of frictionless particles. What power must be delivered by the pump? Jet D₁ = 5 cm 25 m D= 10 cm 15 m 2 m Answer: 26 kW Pump 3 Figure: H3.3
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
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Question
Transcribed Image Text:02: The water level in a tank is 20 m above the ground
as shown in H3.1. A hose is connected to the bottom of
the tank, and the nozzle at the end of the hose is pointed
straight up. The tank cover is airtight, and the air pressure
above the water surface is 2 atm gage. The system is at
sea level. Determine the maximum height to which the
water stream could rise. Take the density of water to be
1000 kg/m³. Answer: 40.7 m
2 atm
20 m
Figure: H3.1
03: Air is flowing through a Venturi meter whose diameter is 2.6 in at the entrance
part (location 1) and 1.8 in at the throat (location 2) as shown in Figure H3.2. The
gage pressure is measured to be 12.2 psia at the entrance and 11.8 psia at the
throat. Neglecting frictional effects, show that the volume flow rate can be
expressed as,
12.2 psia
11.8 psia
v=Az
2(P₁-P₂)
P(1-A/A)
Air
2.6 in
1.8 in
Figure: H3.2
and determine the flow rate of air. Take the air density to be 0.075 lbm/ft³.
Answer: 4.48 ft³/s
04: The pump in Figure H3.3 generates a water jet oriented to travel a maximum
horizontal distance. The diameter of pull pipe is 10 cm and the jet diameter is 5
cm. System friction head losses are 6.5 m. The jet may be approximated by the
trajectory of frictionless particles. What power must be delivered by the pump?
Jet
D₁ = 5 cm
25 m
D= 10 cm
15 m
2 m
Answer: 26 kW
Pump
3
Figure: H3.3
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