WorksheetsPTT154 Quiz 5: Lecture 5
Total questions: 10
Worksheet time: 2mins
Liquid can be transferred by:
Gravity from the underground tanks
A "suction case"
Fans
Pumps
Generally, pumps are used to:
Decrease the mechanical energy of the liquids
Decrease the fluid flow velocity
Increase the fluid pressure
Decrease the fluid level
The change of the liquid density is assumed _______________ and may considered constant throughout the transfer.
increased
decreased
elevated
negligible
Which of the following is not a positive displacement pump?
Rotary vane pump
screw pump
Piston pump
Centrifugal pump
Which of the following is not an example of the gear pump?
External gear pump
Internal gear pump
Piston pump
Which of the following is true in describing centrifugal pumps?
Moves fluid by creating pressure differences in the chamber via piston movement
Moves fluid by drawing in a fixed volume of fluid using the meshing of the rotating gear
Moves fluid by converting rotational kinetic energy to hydrodynamic energy of the fluid
Moves fluid by converting rotational potential energy to hydrodynamic energy of the fluid
Which of the following theorem is used in solving the pump-related fluid movement problems?
Conservation of mass
Conservation of pressure
Conservation of momentum
Conservation of power
Which of the following is the wrong assumption made when using Bernoulli's Equation?
The velocity on the surface inside a tank is negligible is the tank is small
The pressure inside the tank is the same as that of outside the tank if the tank is uncovered.
The pressure on the liquid surface is of zero gauge pressure if it's uncovered.
The atmospheric pressure is 1atm or 101.325 kPa
Which of the following is not assumed zero in Example 2 in Lecture 5?
Inlet pressure (P1)
Outlet pressure (P2)
Inlet velocity (v1)
inlet height (h1)
Why is the friction generated per unit mass of fluid, hf is missing from the final form of the Bernoulli's equation (energy term)?
It has already be considered in the Wp
It has already be considered in the η
It has already be considered in the ηWp
It has already be considered in the ρPL
