Given below are two statements Statement... | ICAR JRF/SRF 2024

सभी विषय 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

ICAR JRF 29 Jun 2024Shift 1

MCQ (Single Correct) +4 −1

Which of the following mathematical expressions can be used for predicting the moisture isotherms in foods.

(A) . GAB model

(B) . BET model

(C) . Langmuir model

(D) . Freundlich mode!

Choose the correct answer from the options given below:

(A), (B) and (C) only. (A), (B) and (0) only, (A), (B), (C) and (D). (B), (C) and (D) only.

ICAR JRF 29 Jun 2024Shift 1

Match the Following +4 −1

Match List with List-II a Choose the correct answer from the options given below:

Choose the correct answer from the options given below :

List - I Heat and Mass Transfer Parameters		List - II Dimensions / Units
A	Specific heat Specific heat	I	L² T⁻² K⁻¹ (J/kg·K L² T⁻² K⁻¹ (J/kg·K
B	Thermal diffusivity Thermal diffusivity	II	L² T⁻¹ (m²/s L² T⁻¹ (m²/s
C	Thermal conductivity Thermal conductivity	III	M L T⁻³ K⁻¹ (W/m·K M L T⁻³ K⁻¹ (W/m·K
D	Convective heat transfer coefficient Convective heat transfer coefficient	IV	M T⁻³ K⁻¹ (W/m²·K M T⁻³ K⁻¹ (W/m²·K

(A) - (I), (B) - (II), (C) - (III), (D) - (IV) (A) - (IV), (B) - (II), (C) - (IV), (D) - (I) (A) - (II), (B) - (IV), (C) - (I), (D) - (III) (A) - (III), (B) - (IV), (C) - (I), (D) - (I)

ICAR JRF 29 Jun 2024Shift 1

Statement Based +4 −1

Given below are two statements

Statement (I) : Heat pump works on reverse Carnot cycle and transfers heat from a lower temperature body to a higher temperature body

Statement (II) : The COP of heat pump and refrigeration system in the same temperature range is same

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.

ICAR JRF 29 Jun 2024Shift 1

MCQ (Single Correct) +4 −1

According to Bernoulli's theorem, in a horizontal pipe, for an incompressible fluid

velocity is highest and pressure is lowest at the vena contracta velocity is lowest and pressure is highest at the vena contracta Both velocity and pressure are highest at the vena contracta both velocity and pressure are lowest at vena contracta

ICAR JRF 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) : Counter flow heat exchangers with equal heat capacities give parallel and linear temperature profiles for both hot and cold fluid

Reason (R) : Counter flow heat exchangers, both hot and cold fluid enters from the opposite direction, and flow direction is opposite

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.