MEASURING - 7 - NMC TESTING_Vacuum and Airflow

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1. Enter your first and last name

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2. Select all that apply. The airflow meter (AFM) should be placed:

pipeline systems: at or near the receiver for

weigh jar systems: on the vacuum supply for

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3. Select all that apply. In order to make good air flow measurements:

Restrict the outlet of the air flow meter

Use a digital or dial gage calibrated quarterly

Connect the vacuum gage directly to air flow meter

Measure vacuum in "quiet air"

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4. Select all the options that match the flow rate with the minimum opening size for the AFM connection.

38 mm (1.5 inch) opening: <3000 LPM (100 CFM)

51 mm (2.0 inch) opening: 3000-5000 LPM (100-175 CFM)

75 mm (3.0 inch) opening: >5000 LPM (175 CFM)

25 mm (1 inch) opening: Extraneous Answer Choice

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5. AFM Correction factors can generally be ignored for measurements made between _____ kPa.

44-50

38-40

30-35

40-54

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6. When measuring receiver vacuum, the first milk inlet on the milkline in parlor is only a valid testing point if there is little or no airflow in the milkline where the measurement is being taken.

True

False

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7. Select all the options that match the appropriate location with type of regulator when measuring vacuum at the sensing point of the regulator

Remote sensing regulators: Measure with a tee in the sensor tube connection to the airline.

Air admission type: Measure with a tee in the sensor tube connection to the airline.

Air admission type: Test nipple 5 pipe diameters away from any upstream or downstream fitting or elbow. If this is not possible, then test as close to the regulator as practical.

VFD Systems: Test nipple 5 pipe diameters away from any upstream or downstream fitting or elbow. If this is not possible, then test as close to the regulator as practical.

VFD Systems: Test nipple as close as possible to the vacuum transducer used to sense system vacuum.

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8. Vacuum measurements should be made in "_________".

during the night

quiet air

inside a building

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9. While measuring vacuum in the pulsator airline, test nipple on the cross over line between the two sides of the barn at least ____ pipe diameters from any fitting or elbow.

MEASURING - 7 - NMC TESTING_Vacuum and Airflow

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* 1. Enter your first and last name

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* 2. Select all that apply. The airflow meter (AFM) should be placed:

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* 3. Select all that apply. In order to make good air flow measurements:

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* 4. Select all the options that match the flow rate with the minimum opening size for the AFM connection.

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* 5. AFM Correction factors can generally be ignored for measurements made between _____ kPa.

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* 6. When measuring receiver vacuum, the first milk inlet on the milkline in parlor is only a valid testing point if there is little or no airflow in the milkline where the measurement is being taken.

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* 7. Select all the options that match the appropriate location with type of regulator when measuring vacuum at the sensing point of the regulator

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* 8. Vacuum measurements should be made in "_________".

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* 9. While measuring vacuum in the pulsator airline, test nipple on the cross over line between the two sides of the barn at least ____ pipe diameters from any fitting or elbow.

1. Enter your first and last name

2. Select all that apply. The airflow meter (AFM) should be placed:

3. Select all that apply. In order to make good air flow measurements:

4. Select all the options that match the flow rate with the minimum opening size for the AFM connection.

5. AFM Correction factors can generally be ignored for measurements made between _____ kPa.

6. When measuring receiver vacuum, the first milk inlet on the milkline in parlor is only a valid testing point if there is little or no airflow in the milkline where the measurement is being taken.

7. Select all the options that match the appropriate location with type of regulator when measuring vacuum at the sensing point of the regulator

8. Vacuum measurements should be made in "_________".

9. While measuring vacuum in the pulsator airline, test nipple on the cross over line between the two sides of the barn at least ____ pipe diameters from any fitting or elbow.