Food Engineering Mock Test 4

10%

Question 1 of 10

1. Which theory proposes that the film is continuously getting renewed and replaced by the bulk liquid?

Film theory

Penetration theory

None of the mentioned

Surface renewal theory

Question 1 of 10

Question 2 of 10

2. Which of the following is also called Oxygen balancing method?

None of the mentioned

Static method

Sulphite oxidation method

Dynamic gassing out method

Question 2 of 10

Question 3 of 10

3. Drying rate curve is plot between _____ and _____

Critical moisture content, critical humidity

Moisture content, drying rate

Critical humidity, drying rate

Critical moisture content, drying rate

Question 3 of 10

Question 4 of 10

4. At a food processing industry, the steam was re-compressed and a small amount of steam at high pressures and temperatures was sent into the next evaporation chamber in a multiple effect evaporator. Which of the following is true with respect to the above sentences?

The capacity of the evaporator increases

The overall pressure and temperature of steam increases which is desired

All of the mentioned

There might be wear and tear in the evaporator

Question 4 of 10

Question 5 of 10

5. Which of the following is true about loss factor of food?

It is desirable quality of food

It is the ability of food to absorb waves

All of the mentioned

It is represented by Ɛ

Question 5 of 10

Question 6 of 10

6. Statement 1: K_La is measured together and not separately.

True

False

Question 6 of 10

Question 7 of 10

7. Which of the following sentences is true?

Indirect heating has higher heat transfer rates than direct heating

Both of them have the same heat transfer rates

Cannot be determined

Direct heating has higher heat transfer rates than indirect heating

Question 7 of 10

Question 8 of 10

8. Statement 1: Radiation is the transfer of heat by electromagnetic waves.
Statement 2: When heat is radiated from a hot source, the amount of heat received by the body depends on the nature of the body.

True, False

True, True

False, False

False, True

Question 8 of 10

Question 9 of 10

9. Statement 1: Drying is used for preservation of food.
Statement 2: Convective drying is indirect drying and conductive drying is direct drying.

True, True

True, False

False, True

False, False

Question 9 of 10

Question 10 of 10

10. The existence of a thick constant film between two phases is a proposal by which of the following theories?

Surface renewal theory

Film theory

Penetration theory

All of the mentioned

Question 10 of 10