Agear pump has a 4.25in outside diameter, a 3.25in inside diameter, and a 2in width. if the actual pump flow rate is 1800rpm and rated pressure is 29gpm, what is the volumetric efficiency?

Which of the following refers to refers to how well the control system responds to sudden changes in the system. a)-transient regulation b)- distributed regulation c)-constant regulation d)-steady-state regulation

Air flows over a heated plate àt a velocity of 50m/s. the local skin factor coefficient at a point on a plate is 0.004. estimate the local heat transfer coefficient at this point.the following property data for air are given: density = 0.88kg/m3 , viscosity 2.286 x 10 ^-5 kgm/s , k = 0.035w/mk ,cp = 1.001kj/kgk. use colburn reynolds analogy.

The sum of the normal stresses does not change as the stress state rotates through an angle. a)-trune b)- false