Specific energy of a flowing fluid per unit weight is

• A. <img src="/_files/images/civil-engineering/hydraulics/165-7.306-1.png">
• B. <img src="/_files/images/civil-engineering/hydraulics/165-7.306-2.png">
• C. <img src="/_files/images/civil-engineering/hydraulics/165-7.306-3.png">
• D. <img src="/_files/images/civil-engineering/hydraulics/165-7.306-4.png">