A máquina de café expresso
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EM 4.13 Comprehension Test — Chapter 4 questionário
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1. EM 4.1
In what year was a PID first installed in a
doméstico
espresso machine?
1990
2001
2008
1961
2. EM4.2
In what year was the first PID-controlled multi-boiler released?
2008
1961
2001
1990
3. EM4.3
What is the definition of
temperatura de deslocamento
?
The difference between the temperature of the water exiting the group head and the temperature of the
disco
The difference between the temperature of the water in the heat exchanger and the temperature of the water in the boiler
The difference between the temperature of the brew boiler and the temperature of the espresso exiting the portafilter
The difference between the temperature of the water in the boiler and the temperature of the water exiting the group head
4. EM4.4
Fill in the blank: To enable temperature profiling, it is useful to have a low _____ in the group head.
water level
profile
massa térmica
temperatura
5. EM4.5
How does the Decent espresso machine manage flow?
By using PIDs in three separate parts of the machine
By using an app that links to your smartphone
By counting the pulses of the machine’s vibration pump
By having a group with a very high
massa térmica