What is the energy requirement of an 85% efficient pump that transports 40 L/s of wa the pressure increases from 200 kPa to 1200 kPa? 4.8 kW B. 14.2 kW C. 34.0 kW D. 47.1 kW

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
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ANSWER 11-13 THANKS
11. What is the energy requirement of an 85% efficient pump that transports 40 L/s of water if
the pressure increases from 200 kPa to 1200 kPa?
A. 4.8 kW
B. 14.2 kW
C. 34.0 kW
D. 47.1 kW
12. An 80%-efficient pump is inserted in a 4-cm-diameter line transporting 40 L/s of water. A
pressure rise of 400 kPa is desired. The power required by the pump is nearest:
A. 12 kW
B. 16 kW
C. 18 kW
D. 22 kW
13.A nozzle with an exit diameter of 4-cm is attached to a 10-cm-diameter pipe transporting
0.1 m2/s of water. The force the water exerts on the nozzle is nearest:
A. 6.7 kN
B. 12.2 kN
C. 17.5 kN
D. 24.2 kN
Transcribed Image Text:11. What is the energy requirement of an 85% efficient pump that transports 40 L/s of water if the pressure increases from 200 kPa to 1200 kPa? A. 4.8 kW B. 14.2 kW C. 34.0 kW D. 47.1 kW 12. An 80%-efficient pump is inserted in a 4-cm-diameter line transporting 40 L/s of water. A pressure rise of 400 kPa is desired. The power required by the pump is nearest: A. 12 kW B. 16 kW C. 18 kW D. 22 kW 13.A nozzle with an exit diameter of 4-cm is attached to a 10-cm-diameter pipe transporting 0.1 m2/s of water. The force the water exerts on the nozzle is nearest: A. 6.7 kN B. 12.2 kN C. 17.5 kN D. 24.2 kN
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