
BRO CAP 20 - 21
Authored by DORA CALLEJAS
Chemistry
1st Grade
Used 3+ times

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16 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Para una ultracongelacion se debe emplear temperaturas inferiores a -20 ºF
falso
verdadero
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Para la congelacion de alimentos vegetales es importante observar si no se dañan al descongelar, asì como la lechuga, el zapallo.
falso
verdadero
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Entre las sustancias frigorigenas se conoce a esta:
Freón
Ganon
Xenon
Radón
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cual es el problema cuando se descongela el alimento y se vuelve a congelar?
Aparece un pardeamiento
Aparece un exudado dañino para el alimento
Ocasiona aparición de abombamientos
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
El uso del frio hace que este inhiba el crecimiento de los microorganismos
Totalmente en desacuerdo
Totalmente de acuerdo
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Depende de la naturaleza química del alimento: la conductividad térmica y el calor específico; y otros que son manipulables, como la forma y dimensiones del producto, definidores de su comportamiento aerodinámico e inciden sobre el coeficiente de película o zona estática que rodea al alimento. Corresponde a factores:
extrinsecos
intrinsecos
implicitos
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
El tiempo de congelación de un alimento viene determinado por todas estas, excepto una, cuál?
Porcentaje de agua contenido en el alimento.
La forma del alimento, mas o menos irregular.
La capacidad de enfriamiento del sistema frigorÌfico.
Nivel del frio ambiental
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