Which of the following is NOT delivered by the modified atmosphere (MA) or controlled atmosphere (CA)?
a) Delay ripening of fruits
b) Retard spread of diseases
c) Toughing
d) Incidence of storage disorders
Q.2.
Which of the following variables affect gas exchanges into and out of the package?
a) Weight of apples
b) Ethylene concentration
c) Structure of the packaging film
d) All of the mentioned
Q.3.
Which of the following is NOT the correct method to enhance storage?
d) None of the mentioned
a) Reducing pressure
b) Increasing ethylene
c) Decreasing respiration
Q.4.
StatementSub atmospheric storage involves ventilating the produce with air saturated with water vapor by continuously evacuating the container with a sealed vacuum pump.
a) True, False
b) True, True
c) False, False
d) False, True
Q.5.
Under hypobaric storage, when gas is in equilibrium with its surroundings, the diffusivity _____ and concentration gradient _____
a) Increase by ten folds, decreases to one-tenth
b) Decreases to one-tenth, increase by ten folds
c) Stays constant, stays constant
d) None of the mentioned
Q.6.
StatementUnder hypobaric storage, the gas always attains equilibrium with its surroundings.
a) True, False
b) True, True
c) False, False
d) False, True
Q.7.
StatementUnder hypobaric storage, oxygen content is reduced to reduce the rate of synthesis of volatile.
a) True, False
b) True, True
c) False, False
d) False, True
Q.8.
Which of the following is true with respect to volatile by controlling oxygen content in storage?
a) Lowing in endogenous concentration increases rate of volatile formation
b) Anaerobiosis favors its production if it is a highly reduced compound
c) Limiting the amount of energy available
d) All of the mentioned
Q.9.
StatementA gas atmosphere containingCO2 is effective in inhibiting slime-producing bacteria.
a) True, False
b) True, True
c) False, False
d) False, True
Q.10.
StatementInfluence of bacteria has more effect on the storage of food than the pH control.
a) True, myoglobin
b) True, haemoglobin
c) False, myoglobin
d) False, haemoglobin
Q.11.
Meats stored in _____ environment have a better color than _____
a) CO2, O2
b) O2, CO2
c) CO2, N2
d) N2, O2
Q.12.
Which of the following statements is true?
a) Polyethylene films have a good heat-sealability
b) Polyvinylidene chloride films are gas and water vapor impermeable
c) Nylon films have high physical strength
d) All of the mentioned
Q.13.
Three level packaging is done for rice. Which bag is for quality control?
a) Inner most bag 1
b) Middle bag 2
c) Outermost bag 3
d) All of the mentioned
Q.14.
StatementUnder water storage is more effective than that in the air.
a) True, False
b) True, True
c) False, False
d) False, True
Support mcqgeeks.com by disabling your adblocker.
Please disable the adBlock and continue. Thank you.