Problem #2 A 6AE14 pump with impeller diameter of 12.00 in will be operated at 1750 rpm with a flow rate of 1500 gpm (5670 L/min). Find the head produced by the pump, the efficiency, NPSHR, and power required.

A. It is the torsional parameter equal to twice the product of the area enclosed by the centerline of the tube and the shear flow Choices: Angle of twist Torque Modulus of rigidity Torsional stress B. The first moment of area, Q is maximum at: Choices: Minimum “b” Neither of the choices Both maximum and minimum “b” Maximum “b”   C. The statement “Flexural shear stress is maximum at the neutral axis” Choices: Is always true Depends on the value of Q Is not possible Is sometimes true   D. It is the boundary condition for a fixed support Choices Y=0 Either of the choices Both choices Y’=0   E. It is the measure of resistance to shear deformation Choices: Modulus of Elasticity Modulus of Toughness Modulus of Rigidity Modulus of Resilience   note: please help me in this word meaning sample problems thank you

1. What is the difference between direct and shear stress?

Which of the following statement(s) is/are true? (a) The slope of the SFD at any section of the beam is equal to the load intensity at that section. (b) The slope of the SFD at any section of the beam is equal to the bending moment at that section. (C) The slope of the BMD at any section of the beam is equal to the shear force at that section. (d) The slope of the BMD at any section of the beam is equal to the load intensity at that section. O (a) and (d) O (c) only O None of the above O (a) and (c) O (b) only