Agricultural Engineering Gate Yearwise 



Agricultural Engineering Gate 2025 Questions with Answer

Ques 27 GATE 2025

A mouldboard plough is operated by a 2WD tractor with 6.0 kN pull. The ratio of lateral component to the longitudinal component of soil forces is 0.30, and the ratio of the vertical component to the longitudinal component of soil forces is 0.50. If diameter of the driving wheels is 1.2 m and the rear axle rotates at 10 rpm, the drawbar power produced at 20% wheel slip is ______ kW. (Rounded off to 2 decimal places)


(12.06) is the correct answer.

Ques 28 GATE 2025

For a right-hand offset disc harrow, the longitudinal distance from the hitch point to the centers of the front and rear gangs are 2.5 m and 4.5 m, respectively. The resultant horizontal soil forces in longitudinal direction on the front and rear gangs are 3.0 kN and 3.5 kN, respectively; while the resultant horizontal soil forces in lateral directions are 2.5 kN and 4.0 kN, respectively. Considering the resultant soil forces acting at the centers of front and rear gangs, the amount of offset of the center of cut with respect to the hitch point is ______ m. (Rounded off to 2 decimal places)


(1.45) is the correct answer.

Ques 29 GATE 2025

The sphericity of a cylindrical potato sample having diameter of 1.0 cm and length of 5.0 cm is closest to:

A

0.98

B

0.67

C

0.31

D

0.17


(b) is the correct answer.

Ques 30 GATE 2025

In rice milling, the rubber roll sheller is used for:

A

Separating paddy from brown rice

B

Removal of bran adhering to rice kernels

C

Separating husk layer from paddy grains

D

Removal of husk layer from white rice


(c) is the correct answer.

Ques 31 GATE 2025

In general, result(s) of blanching fresh fruits and vegetables is/are:

A

Complete elimination of microorganisms

B

Removal of entrapped air pockets between plant tissues

C

Leaching of nutrients

D

Inactivation of enzymes


(d) is the correct answer.

Ques 32 GATE 2025

Apple slices are dried from a moisture content of 65% (dry basis) to 10% (dry basis) in a hybrid solar dryer under falling rate period. The apple slices have a drying rate constant of 1/104 minute-1. Considering an equilibrium moisture content of 2% (dry basis), the time required for drying is ______ minutes. (Rounded off to 2 decimal places)


(25.07) is the correct answer.

Ques 33 GATE 2025

The quantity of water needed to increase the moisture content of 50 kg paddy grains from 13% (dry basis) to 35% (dry basis) in the hydrothermal treatment process is ______ kg. (Rounded off to 2 decimal places)


(15.06) is the correct answer.

Ques 34 GATE 2025

The assumption(s) which is/are not correct for deriving the Plank's equation for estimation of food freezing time:

A

Ice front moves from the freezing medium into the food block at a uniform rate.

B

Physical property data of food material are accurate.

C

Initially the whole food material is at a distinct freezing point.

D

Sensible heat changes during the freezing process are sufficiently high.


(d) is the correct answer.

Ques 35 GATE 2025

A mixture of Nitrogen (N2) and Helium (He) gases is contained in a pipe at 1.0 atm pressure and at 298 K. At one point in the pipe, the partial pressure of N2 is 60.80 kPa and at a point 0.22 m apart, the partial pressure of N2 is 20.31 kPa. The diffusion coefficient of the mixture is 0.612×10-4 m2.s-1. Considering Universal gas constant as 8314 m3 mol-1 K-1, the steady-state flux of N2 is n×10-6 kg mol.s-1.m-2. The value of n is ______ (Rounded off to 2 decimal places)


(4.20) is the correct answer.

Ques 36 GATE 2025

Milk enters at 25°C through inner pipe of a concentric double pipe heat exchanger. Hot water enters at 82.5°C and flows countercurrently (flow rate =1.2 kg.s-1) through the annular region. The diameter of inner pipe, length of the pipe and average overall heat transfer coefficient are 60 mm, 6 m, and 2100 W.m-2.K-1, respectively. The average values of specific heat capacity of water and milk are 4.18 kJ.kg-1.K-1 and 3.95 kJ.kg-1.K-1, respectively. The effectiveness of the heat exchanger is 0.572 and the NTU is 1.01. Assuming the steady-state condition and considering π as 3.14, the temperature of hot water at exit of the pipe is ______ °C. (Rounded off to 1 decimal place)


(50.1) is the correct answer.

Ques 37 GATE 2025

In an inoculated pack study, 0.5 kg peas per can are thermally processed at 121°C. One group of cans contain Clostridium spp. spores with initial spore level of 5×1010 per can. Another group of cans contain Bacillus spp. spores. It is desired to have spoilage probability of 5 in 100 cans after thermal processing. The decimal reduction time of Clostridium spp. and Bacillus spp. at 121°C are 2.5 minutes and 6.0 minutes, respectively. If all the cans receive same lethality, the initial number of spores per g of peas is ______ (Answer in integer)


(12) is the correct answer.

Ques 38 GATE 2025

Ravi had ______ younger brother who taught at ______ university. He was widely regarded as ______ honorable man.
Select the option with the correct sequence of articles to fill in the blanks.

A

a; a; an

B

the; an; a

C

a; an; a

D

an; an; a


(a) is the correct answer.

Ques 39 GATE 2025

The CEO's decision to downsize the workforce was considered myopic because it sacrificed long-term stability to accommodate short-term gains.
Select the most appropriate option that can replace the word "myopic" without changing the meaning of the sentence.

A

visionary

B

shortsighted

C

progressive

D

innovative


(b) is the correct answer.

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