Aux 1 Unit 5 Q1

1 / 10

Which component in a pulsation damper is responsible for isolating the gas from the liquid being pumped?

B) The diaphragm

A) The valve seat

C) The pump casing

D) The impeller

2 / 10

In a pulsation damper, what happens to the gas-filled bladder when a pressure spike occurs?

D) The bladder remains unchanged

B) The bladder contracts, increasing the pressure in the line

C) The bladder releases gas to reduce pressure

A) The bladder expands, absorbing the excess pressure

3 / 10

How does a pulsation damper typically reduce pulsations in a positive displacement pump system?

A) By absorbing the pressure spikes using a gas-filled bladder or a flexible diaphragm

B) By increasing the speed of the pump

C) By filtering out debris from the fluid

D) By cooling the fluid as it passes through the pump

4 / 10

Why do some positive displacement pumps, such as gear pumps, typically not require pulsation dampers?

C) They are designed to handle only non-pressurized fluids

D) They operate at very high speeds

B) They generate a smooth, continuous flow with minimal pulsation

A) They operate at lower pressures

5 / 10

What is the primary function of a pulsation damper in a positive displacement pump system?

B) To smooth out pressure fluctuations and reduce pulsations in the discharge line

A) To increase the flow rate of the pump

D) To control the temperature of the fluid being pumped

C) To prevent backflow in the system

6 / 10

What could happen if a positive displacement pump system lacks a pulsation damper when one is needed?

C) The system will automatically adjust to the pulsations

B) Excessive pressure fluctuations could lead to pipe vibration, noise, and potential damage

A) The pump will operate more efficiently

D) The fluid being pumped will become more uniform

7 / 10

What is the reason that screw pumps typically do not need pulsation dampers?

A) They operate at low flow rates

D) They are only used in closed-loop systems

B) Their rotary motion delivers a smooth, non-pulsating flow

C) They can handle high-viscosity fluids without pulsation

8 / 10

In which situation might even a positive displacement pump that usually generates low pulsation require a pulsation damper?

A) When operating with highly viscous fluids

C) When the pump is used in an open-loop system

B) When used in a high-pressure system where even small pulsations could cause issues

D) When the fluid temperature is very low

9 / 10

Which characteristic of peristaltic pumps allows them to operate without a pulsation damper?

D) The fact that they are manually operated

C) Their use of a dual-piston design

B) The gentle, squeezing action that provides a steady flow with minimal pulsation

A) Their ability to pump at extremely high pressures

10 / 10

Why is it important for a pulsation damper to be correctly sized for the pump system?

D) To reduce the maintenance needs of the pump

B) To absorb the correct amount of pressure fluctuation and maintain stable flow

A) To ensure the pump operates at its maximum capacity

C) To increase the speed of the pump

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