UNDERSTANDING - 4 - MILKING MACHINE_Airflow and Vacuum Drop in Air Lines

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1. Enter your First and Last Names

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2. One of the goals of milking machine design is to limit the vacuum differences across the system to an acceptable level.

True

False

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3. In milking machines, air enters the system through:

the milking unit, pulsator, and receiver

the milking unit, pulsator, and vacuum regulator

the pulsator, sensor of the regulator, and receiver

the pulsator, sensor of the vacuum regulator, and pump

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4. Select all that apply. The vacuum drop between two points in the milking machine depends on:

the type of the pulsation system

the amount of air flowing in the airline

the vacuum pump capacity

the diameter of the airline

the equivalent length of the airline

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5. Select the correct matches about the milking machine components and events with their corresponding air usages.

pulsation (per unit): 2842 L/min

claw vents (per unit): 814 L/min

liner slip: 28170 L/min

unit attachment: 3225 L/min

unit fall off: 8002000 L/min

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6. Select all of the correct descriptions of milking systems that have conventional vacuum regulators.

The vacuum pump always withdraws the same amount of air per minute.

The difference between the air admitted by milking machine components and the air extracted by the vacuum pump is made up by the air admitted through the regulator

The regulator air admission is equal the vacuum pump capacity minus the air admitted by components, minus the system leaks.

The air admitted by components is equal to the air removed by the vacuum pump, eliminating the air admitted by conventional regulators.

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7. Consider a milking system that has a conventional vacuum regulator:

During a unit fall off in this system, the regulator admission decreases and the airflow in the section of pipe between the regulator and balance tank remains the same.

True

False

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8. Select all of the correct descriptions of milking systems that have capacity controlled pumps.

The amount of air removed per minute by the vacuum pump decreases when a unit fall off occurs.

The air moved by the vacuum pump is adjusted to the air admitted to the milking system.

There is no regulator air admission.

The amount of air admitted per minute by the components is the same as the amount of air removed by the vacuum pump per minute.

UNDERSTANDING - 4 - MILKING MACHINE_Airflow and Vacuum Drop in Air Lines

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* 1. Enter your First and Last Names

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* 2. One of the goals of milking machine design is to limit the vacuum differences across the system to an acceptable level.

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* 3. In milking machines, air enters the system through:

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* 4. Select all that apply. The vacuum drop between two points in the milking machine depends on:

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* 5. Select the correct matches about the milking machine components and events with their corresponding air usages.

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* 6. Select all of the correct descriptions of milking systems that have conventional vacuum regulators.

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* 7. Consider a milking system that has a conventional vacuum regulator:During a unit fall off in this system, the regulator admission decreases and the airflow in the section of pipe between the regulator and balance tank remains the same.

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* 8. Select all of the correct descriptions of milking systems that have capacity controlled pumps.

1. Enter your First and Last Names

2. One of the goals of milking machine design is to limit the vacuum differences across the system to an acceptable level.

3. In milking machines, air enters the system through:

4. Select all that apply. The vacuum drop between two points in the milking machine depends on:

5. Select the correct matches about the milking machine components and events with their corresponding air usages.

6. Select all of the correct descriptions of milking systems that have conventional vacuum regulators.

7. Consider a milking system that has a conventional vacuum regulator:

During a unit fall off in this system, the regulator admission decreases and the airflow in the section of pipe between the regulator and balance tank remains the same.

8. Select all of the correct descriptions of milking systems that have capacity controlled pumps.