Explore topic-wise MCQs in Food Processing Unit Operations.

This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Food Processing Unit Operations knowledge and support exam preparation. Choose a topic below to get started.

1.

Which is the slowest mode of heat transfer?

A. Conduction
B. Convection
C. Radiation
D. Both radiation and convection
Answer» B. Convection
Discussion
2.

According to_________ law, the conductive heat flux is linearly proportional to the temperature gradient.

A. Fourier s law
B. Pascal law
C. Newton law
D. Stefan-Boltzmann Law
Answer» B. Pascal law
Discussion
3.

Is thermal diffusivity and thermal conductivity related?

A. True
B. False
Answer» B. False
Discussion
4.

What are factors of heat capacity?

A. Heat energy, time
B. Heat energy, temperature
C. Heat energy, temperature, time
D. Temperature, time
Answer» C. Heat energy, temperature, time
Discussion
5.

Which law governs the thermal conductivity?

A. Fourier s law
B. Pascal law
C. Newton law
D. Planks law
Answer» B. Pascal law
Discussion
6.

Which of the following example does not explain conduction?

A. The heat from a hot liquid makes the cup itself hot
B. Walking on the beach on a hot summer day will warm the feet
C. A metal spoon becomes hot from the boiling water inside the pot
D. The formation of sea and land breeze
Answer» E.
Discussion
7.

Are these statements about the thermal conductivity true?
Statement 1: Thermal conductivity is an extrinsic property.

A. nStatement 2: It involves in the bulk motion of the molecules during heat transfer.
B. True, False
C. True, True
D. False, True
E. False, False
Answer» E. False, False
Discussion
8.

Which material has highest thermal conductivity?

A. Diamond
B. Copper
C. Silver
D. Bronze
Answer» B. Copper
Discussion
9.

Ice has __________ thermal conductivity than water.

A. lower
B. higher
C. same
D. very lower
Answer» C. same
Discussion