UNDERSTANDING - 10 - AOC_Teatcup Action Survey

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* 2. The teatcup liner is one of two milking machine components that come into contact with cows.

True

False

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* 3. During milking, there are interactions between the liner and the teat that are:

political and correct

physiological and physical

psychological and metaphysical

positively and negatively charged

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* 4. The selection of the internal diameter of the liner is most often based on:

the smallest cow’s teat diameter

the largest cow’s teat diameter

what will stay on the cows without squawks and drop-offs

the average diameter of the full teats

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* 5. Select all of the forces that affect the depth a teat moves into a liner shortly after machine attachment.

liner/teat friction

gravity

liner vacuum

pulsation rate

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* 6. Pulsation occurs when air pressure in the space between the shell and the liner is varied between atmospheric pressure and liner vacuum in a cyclic manner.

True

False

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* 7. Because milk is removed from the teat by compressive force, the distance the teat enters the liner does not affect the efficiency of milking.

True

False

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* 8. When the liner is closed during pulsation, the vacuum is cut off to the teat end, thus preventing congestion and edema.

True

False

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* 9. When the teat empties during milking, the liner moves up on the teat indicating that:

the claw weight is too low

the peak milk flow rate period has ended

machine stripping is occurring

the system vacuum level should be lowered

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* 10. The main purpose of pulsation is to limit the development of teat tissue congestion and edemas during milking.

True

False

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* 11. Pulsation helps to:

protect the medial suspensory ligament from damage

restrain milk flow

reduce the possible discomforts of milking

increase the occurrence of new mastitis infections

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* 12. It is perfectly normal and desired for a cow’s milk flow graph to register a short flow followed by little to no flow, then a quick advance to peak flow.

True

False

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* 13. Milk flows from the teat during milking due to the compressive load of the liner applied to the teat.

True

False

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* 14. Average liner compression can be determined, within a pulsation cycle, by measuring the vacuum level in the teatcup pulsation chamber when:

milk stops flowing

milk either starts or stops flowing

the midpoint of milk flow is reached

milk starts flowing

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* 15. Teat-end hyperkeratosis is a thickening of the skin that lines the teat canal and surrounds the external teat orifice.

True

False

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* 16. Hyperkeratosis can be reduced by:

increasing claw capacity

changing liners

adjusting the threshold settings of the detachers

applying a good salve

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* 17. The main variation in flow rate between cows is due to:

milking equipment design

teat canal size

pulsation rate

detacher settings

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* 18. Pre-stimulation typically results in:

more milk and less machine on-time

less milk and longer machine on-time

no effect on flow rate or machine on-time

lower strip yields

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* 19. The low-flow rate period of milking begins when the milk flow pathway from at least one quarter becomes restricted.

True

False

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* 20. What machine factor has more to do with milking characteristics than any other?

pulsation ratio

pulsation rate

liner design

milk line vacuum level

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* 21. Machine-induced teat congestion is exacerbated by modern narrow-bore inflations with soft mouthpiece lips.

True

False

UNDERSTANDING - 10 - AOC_Teatcup Action

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* 1. Enter first and last name

Question Title

* 2. The teatcup liner is one of two milking machine components that come into contact with cows.

Question Title

* 3. During milking, there are interactions between the liner and the teat that are:

Question Title

* 4. The selection of the internal diameter of the liner is most often based on:

Question Title

* 5. Select all of the forces that affect the depth a teat moves into a liner shortly after machine attachment.

Question Title

* 6. Pulsation occurs when air pressure in the space between the shell and the liner is varied between atmospheric pressure and liner vacuum in a cyclic manner.

Question Title

* 7. Because milk is removed from the teat by compressive force, the distance the teat enters the liner does not affect the efficiency of milking.

Question Title

* 8. When the liner is closed during pulsation, the vacuum is cut off to the teat end, thus preventing congestion and edema.

Question Title

* 9. When the teat empties during milking, the liner moves up on the teat indicating that:

Question Title

* 10. The main purpose of pulsation is to limit the development of teat tissue congestion and edemas during milking.

Question Title

* 11. Pulsation helps to:

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* 12. It is perfectly normal and desired for a cow’s milk flow graph to register a short flow followed by little to no flow, then a quick advance to peak flow.

Question Title

* 13. Milk flows from the teat during milking due to the compressive load of the liner applied to the teat.

Question Title

* 14. Average liner compression can be determined, within a pulsation cycle, by measuring the vacuum level in the teatcup pulsation chamber when:

Question Title

* 15. Teat-end hyperkeratosis is a thickening of the skin that lines the teat canal and surrounds the external teat orifice.

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* 16. Hyperkeratosis can be reduced by:

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* 17. The main variation in flow rate between cows is due to:

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* 18. Pre-stimulation typically results in:

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* 19. The low-flow rate period of milking begins when the milk flow pathway from at least one quarter becomes restricted.

Question Title

* 20. What machine factor has more to do with milking characteristics than any other?

Question Title

* 21. Machine-induced teat congestion is exacerbated by modern narrow-bore inflations with soft mouthpiece lips.