INTRODUCTION - 4 - MILKING MACHINE_Vacuum Production and Control

Question Title

1. Enter your First and Last Name

Question Title

2. A pressure difference is caused by ________.

Removing part of the air molecules from a confined space.

Pulling on the desired low pressure area.

A simple chemical reaction between CO2 and H2O.

Removing part of the air molecules from an open space.

A simple chemical reaction between heat, ethanol, and air.

Question Title

3. A lower pressure corresponds to ___________.

A higher vacuum.

A lower vacuum.

Pressure is not related to vacuums.

Question Title

4. Air molecules at higher pressure attempt to "fill the void" created by fewer molecules in areas of vacuum. This results in a force developed in what direction?

A force towards areas of negative pressure or vacuum.

A force towards areas of positive pressure or vacuum.

There is no force created.

Question Title

5. When the pressure is equalized between two areas, pressure difference is eliminated – no force and no air flow in any direction.

True

False

Question Title

6. Vacuum gauges can either be mechanical or electronic devices.

True

False

Question Title

7. The main job of the vacuum pump is to __________.

Pump air into the milking machine system to create a partial pressure.

Pull the milk out.

Remove air from the milking machine system to create a partial pressure.

Question Title

8. Select the correct matches of a regulator with the given vacuum and air conditions in the milking machine system.

More air entering the system than being removed (vacuum level drops): regulator closes to stop admitting air

More air is being removed from the system than is entering (vacuum level rises): regulator opens to admit air

There is no air entering the system

Question Title

9. In most milking machines air is removed from milking machine at a steady rate by the vacuum pump which means that variability in the system is due to variable amounts of air being admitted to the system.

True

False

Question Title

10. Select all that apply. Some of the different types of regulators include:

Weighted regulators

Spring actuated regulators

Servo-operated regulators

Thermal-operated regulators

Electro-chemical regulators

Magnetic regulators

Question Title

11. The vacuum level is kept steady by the vacuum regulator.

True

False

Question Title

12. The pump removes only the planned air from the milking machine system.

True

False

Question Title

13. Air is admitted into the milking machine from many sources, both steady and intermittent.

True

False

Question Title

14. The vacuum pump inlet will always be the point of highest vacuum level in the milking machine and keeps all of the air moving toward it.

True

False

INTRODUCTION - 4 - MILKING MACHINE_Vacuum Production and Control

Question Title

* 1. Enter your First and Last Name

Question Title

* 2. A pressure difference is caused by ________.

Question Title

* 3. A lower pressure corresponds to ___________.

Question Title

* 4. Air molecules at higher pressure attempt to "fill the void" created by fewer molecules in areas of vacuum. This results in a force developed in what direction?

Question Title

* 5. When the pressure is equalized between two areas, pressure difference is eliminated – no force and no air flow in any direction.

Question Title

* 6. Vacuum gauges can either be mechanical or electronic devices.

Question Title

* 7. The main job of the vacuum pump is to ­­­­­­­­__________.

Question Title

* 8. Select the correct matches of a regulator with the given vacuum and air conditions in the milking machine system.

Question Title

* 9. In most milking machines air is removed from milking machine at a steady rate by the vacuum pump which means that variability in the system is due to variable amounts of air being admitted to the system.

Question Title

* 10. Select all that apply. Some of the different types of regulators include:

Question Title

* 11. The vacuum level is kept steady by the vacuum regulator.

Question Title

* 12. The pump removes only the planned air from the milking machine system.

Question Title

* 13. Air is admitted into the milking machine from many sources, both steady and intermittent.

Question Title

* 14. The vacuum pump inlet will always be the point of highest vacuum level in the milking machine and keeps all of the air moving toward it.

1. Enter your First and Last Name

2. A pressure difference is caused by ________.

3. A lower pressure corresponds to ___________.

4. Air molecules at higher pressure attempt to "fill the void" created by fewer molecules in areas of vacuum. This results in a force developed in what direction?

5. When the pressure is equalized between two areas, pressure difference is eliminated – no force and no air flow in any direction.

6. Vacuum gauges can either be mechanical or electronic devices.

7. The main job of the vacuum pump is to __________.

8. Select the correct matches of a regulator with the given vacuum and air conditions in the milking machine system.

9. In most milking machines air is removed from milking machine at a steady rate by the vacuum pump which means that variability in the system is due to variable amounts of air being admitted to the system.

10. Select all that apply. Some of the different types of regulators include:

11. The vacuum level is kept steady by the vacuum regulator.

12. The pump removes only the planned air from the milking machine system.

13. Air is admitted into the milking machine from many sources, both steady and intermittent.

14. The vacuum pump inlet will always be the point of highest vacuum level in the milking machine and keeps all of the air moving toward it.