Thermal Processing Kinetics Practice Questions (Q1-3) - Processing and Food Engineering

1

ICAR JRF Processing And Food Engineering 29 Jun 2024Shift 1

MCQ (Single Correct) +4 −1

Major functions of blanching of fruits and vegetables before dehydration and canning include

(A) . Inactivation of enzymes

(B) . Killing of pathogenic microbes

(C) . Softening of tissue

(D) . Cleaning of raw material

Choose the correct answer from the options given below:

(A), (B) and (C) only. (A) only, (A), (C) and (D) only. (C) and (D) only.

2

ICAR JRF Processing And Food Engineering 29 Jun 2024Shift 1

MCQ (Single Correct) +4 −1

Which of the models can best describe the microbial death kinetics in liquid

(A) . Langmuir model

(B) . Gompertz model

(C) . Weibull Model

(D) . Biphasic equation

Choose the correct answer from the options given below:

(A), (6) and (D) only. (A), (B) and (C) only, (A), (B), (C) and (D). (B), (C) and (D) only.

3

ICAR JRF Processing And Food Engineering 29 Jun 2024Shift 1

Statement Based +4 −1

Given below are two statements

Statement (I) : D-value represents the time required at a specific temperature (T) to reduce a microbial population by 90% or by a factor of 10.

Statement (II) : Z-value is how long it takes to kill a specific bacterium at a specific temperature

In light of the above statements, choose the most appropriate answer from the options given below.

Both Statement (I) and Statement (II) are true. Both Statement (I) and Statement (II) are false. Statement (I) is true but Statement (II) is false. Statement (I) is false but Statement ({I) is true.

Processing and Food Engineering Subjects

General Agriculture

Engineering Properties & Quality of Biomateri

Heat & Mass Transfer

Post Harvest Unit Operations

Process Technology & Machinery

Design of Processing Machinery

Material Handling, Packaging & Transport

Previous Year Papers of Processing and Food Engineering

Processing and Food Engineering- ICAR JRF/SRF 2024

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