Deck 7 Flashcards
(10 cards)
1
Q
How many pulses are in the process of milking?
A
45 - 60/min
2
Q
Pulsation ratio …
A
50/50 to 60/40
3
Q
Air velocity is expressed in …
A
m/sec
4
Q
How frequently is the cleaning & disinfection of milking machine performed?
A
daily -> after each use
5
Q
Define the term ‘Idle Milking’
A
when the milking machine is not removed from udder
–> this causes trauma for the udder & teats which contributes to the development of mastitis (idle milking must last less than 1 min)
6
Q
Stripping machine …
A
30 sec & 33.3 kPa
7
Q
Max-min thermometer belong …
A
alcohol/mercury - liquid glass thermo
8
Q
Natural type of ventilation depends on …
A
- effective height (min 3m)
- effective outlet area (min 50 x 50 cm)
- outlet to inlet ration ( 3/4 to 2/3 )
- temperature difference outside & inside the house
9
Q
How long does milking process last?
A
4 - 6 min
10
Q
Define the dew point
A
is the temperature at which the air with specific absolute humidity becomes saturated with water vapour
