Dairy & Food Engineering-I Practice Questions (Q16-20) - Dairy Engineering

16

ICAR JRF Dairy Engineering 29 Jun 2024Shift 1

Statement Based +4 −1

Given below are two statements

Statement (I) : Vapour absorption refrigeration systems using water-lithium bromide operate under vacuum,

Statement (II) : Vapour absorption refrigeration systems using water-lithium bromide are used in large air conditioning systems.

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.

17

ICAR JRF Dairy Engineering 29 Jun 2024Shift 1

Assertion & Reason +4 −1

Given below are two statements, one is labelled as Assertion (A) and other one labelled as Reason (R).

Assertion (A) : Operation of the refrigeration plant at higher condensing temperature/pressure is not desirable

Reason (R) : Higher condensing temperature/pressure adversely affects the COP of the system as refrigerating effect decreases and work of compression increases

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

Both (A) and (R) are true and (R) is the correct explanation of (A) Both (A) and (R) are true but (R) is NOT the correct explanation of (A). (A) is true but (R) is false. (A) is false but (R) is true.

18

ICAR JRF Dairy Engineering 29 Jun 2024Shift 1

MCQ (Single Correct) +4 −1

Which of the following statements can be classified as refrigeration (|) Maintaining a closed space at a temperature of 100 F when surroundings are at a temperature 50 °C (\l) Reducing the temperature of a body from 50 °C to 40 °C when the surrounding temperature is 35 °C. (Ill) Reducing the temperature of a food item in open atmospheric conditions from some initial temperature to 15 °C when the surrounding temperature is 0 °C. (IV) Decreasing the temperature of a room from 37 °C to 20 °C when the outdoor temperature is 40 °C.

Choose the correct answer from the options given below:

, (ill) and (IV) only (Il) and (IV) only (11), (lll) and (IV) only (), (), (ill) and (IV)

19

ICAR JRF Dairy Engineering 29 Jun 2024Shift 1

MCQ (Single Correct) +4 −1

Heart of microwave oven is

Magnetron Oven cavity Wave guide Power source

20

ICAR JRF Dairy Engineering 29 Jun 2024Shift 1

Match the Following +4 −1

Match List - I with List - II :

Choose the correct answer from the options given below :

List - I Membrane Filtration Process		List - II Operating Pressure Range
A	Microfiltration Microfiltration	I	0.1 - 2 bar 0.1 - 2 bar
B	Ultrafiltration Ultrafiltration	II	1 - 10 bar 1 - 10 bar
C	Nanofiltration Nanofiltration	III	10 - 30 bar 10 - 30 bar
D	Reverse Osmosis Reverse Osmosis	IV	30 - 100 bar 30 - 100 bar

AAIB-IV,C-+,D-ll (A) - (I), (B) - (I), (C) - (V), (D) - (II) (A) - (I), (B) - (II), (C) - (V), (D) - (II) AAI BAILC-,D-IV

Dairy & Food Engineering-I

Dairy Engineering विषय एवं अध्याय

General Agriculture

Dairy & Food Engineering-I

Evaporation & Drying

Dairy & Food Engineering-II

Thermal Engineering

Process Equipment Design

Refrigeration Engineering

Previous Year Papers of Dairy Engineering

Dairy Engineering- ICAR JRF/SRF 2024

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