Explore topic-wise MCQs in Food Engineering.

This section includes 13 Mcqs, each offering curated multiple-choice questions to sharpen your Food Engineering knowledge and support exam preparation. Choose a topic below to get started.

1.

WHEN_A_CUT_IS_10_MINUTES_AND_THE_CALCULATED_PROCESS_WAS_60_MINUTES_AT_116_DEG_C,_THEN_THE_CORRECTED_PROCESS_TIME_IS______?$

A. 60 minutes
B. 55 minutes
C. 55.8 minutes
D. 54.2 minutes
Answer» D. 54.2 minutes
Discussion
2.

For heat penetration considerations for safe processing schedule, the slowest cooling and the fastest heating curves are used to calculate lethal effect of the process.$

A. True
B. False
Answer» C.
Discussion
3.

Which_of_the_following_factor_does_safe_processing_schedule_depend_upon?$

A. Heat resistance of spoilage bacteria
B. Heat penetration characteristics of food in containers
C. Heat resistance of spoilage bacteria & Heat penetration characteristics of food in containers
D. Neither of the mentioned
Answer» D. Neither of the mentioned
Discussion
4.

Statement 1: Corrosion of cans is more complicated than that of tin and iron alone. Depending on whether the tin forms a complex or not, it acts as the anode or cathode.

A.
B. True, False
C. True, True
Answer» C. True, True
Discussion
5.

Statement 1: The swelling of cans takes place due to the release of hydrogen gas.

A.
B. True, False
C. True, True
Answer» C. True, True
Discussion
6.

Statement 1: In low and medium acid foods, spore forming organisms are observed.

A.
B. True, False
C. True, True
Answer» C. True, True
Discussion
7.

Which of the following is required for calculation of process time by Ball’s method?$

A. C and z value of thermal death time curve
B. Cold point of the container
C. Number of degrees which exist between the retort temperature and the maximum temperature
D. All of the mentioned
Answer» E.
Discussion
8.

With respect to thermal death time curve, D value is the unit defined as the combination of time and temperature to bring about a 90% reduction in spoilage organisms.

A. True
B. False
Answer» B. False
Discussion
9.

Statement 1: In thermal death time curve, after plotting C/t values from it, C value should be equal to Co value.

A.
B. True, False
C. True, True
Answer» C. True, True
Discussion
10.

By plotting the C/t values obtained from a thermal death time curve, a curve is obtained. How is the lethal value obtained from this curve?

A. Area under the curve
B. The center point on the x-axis with respect to beginning and end of curve and then extends to the curve
C. The center point on the x-axis with respect to beginning and end of curve and then extends to the curve
D. None of the mentioned
Answer» B. The center point on the x-axis with respect to beginning and end of curve and then extends to the curve
Discussion
11.

For the thermal death time curve, C= minutes to destroy the organism at 121 deg C. Z=slope of thermal death time curve in deg C and T= temperature under consideration and t= time taken to destroy. Which of the following is read from the graphs?

A. C
B. z
C. t/C
D. C/t
Answer» D. C/t
Discussion
12.

For the thermal death time curve, C= minutes to destroy the organism at 121 deg C. Z= slope of thermal death time curve in deg C and T= temperature under consideration and t= time taken to destroy. Then, which of the following represents the lethal rate at T?

A. C
B. T
C. t/C
D. C/t
Answer» E.
Discussion
13.

The rate of destruction of an organism per minute at any given temperature in a process is the reciprocal of the time in minutes.

A. True
B. False
Answer» B. False
Discussion