Agricultural Engineering Gate 2025 Questions with Answer

Ques 14 GATE 2025

The value of y at x=0.3 and y(x=0)=0 for the differential equation dy/dx=3y+2e^x is ______ (Rounded off to 3 decimal places)

Ques 15 GATE 2025

The condition of refrigerant at the exit of the compressor in a vapor compression refrigeration system is:

Ques 16 GATE 2025

While sowing mustard seeds (bulk density =800 kg.m^-3) a four-row fluted roller type seed drill with 25 cm row spacing operates at a speed of 2.5 km.h^-1. For a desired seed rate of 5.0 kg.ha^-1, the flowrate of seeds from the machine in m³.h^-1 is:

Ques 17 GATE 2025

While studying vertical motion imparted to the base of tractor seat, (radian) is considered as rotation about tractor's CG and R is considered as longitudinal distance from operator's seat to the tractor's CG. For a small value of , the term 'RO' represents the vertical motion resulting from tractor's

Ques 18 GATE 2025

Which of the following method(s) is/are generally used in spark ignition engines for evaluating volatility?

Ques 19 GATE 2025

The nominal radius of the rear wheels of a 2WD tractor is 0.5 m. The rolling radius of the tire is 6% less than the nominal radius. While conducting a field test, if the actual distance covered for 20 revolutions of the rear wheel is found to be 56 m, the rear wheel slip is ______ %. (Rounded off to 2 decimal places)

Ques 20 GATE 2025

Front wheel pivot points of a 2WD tractor are 1.2 m apart. When making turn on a flat concrete surface, the inner front wheel makes 50° and the outer front wheel makes 35° steering angles. To ensure turning without front wheel skid, the wheel base of the tractor should be ______ m. (Rounded off to 2 decimal places)

Ques 21 GATE 2025

A six-stage centrifugal pump delivers water at the rate of 150 L.s^-1 against a net pressure rise of 5003 kN.m^-2. The pump impeller rotates at 1450 rpm. If the acceleration due to gravity is 9.81 m.s^-2, the specific speed of the pump is ______ (Answer in integer)

Ques 22 GATE 2025

A four-stroke diesel engine has a displacement volume of 6.0 L and it operates at 2300 rpm with 75% mechanical efficiency. The indicated mean effective pressure is 800 kPa. If the engine has brake-specific fuel consumption of 320 g.h^-1.kW^-1, considering calorific value of the fuel as 44.6 MJ.kg^-1, the fuel equivalent power is ______ kW. (Rounded off to 2 decimal places)

Ques 23 GATE 2025

An engine's torque-speed characteristics is given below:
T_maxP=125 N.m
N_maxP=2400 rpm
N_HI=2600 rpm
N_maxT=1450 rpm
T_max=160 N.m
where,
T_maxP= torque at maximum power
T_max= maximum torque
N_maxP= speed at maximum power
N_maxT= speed at maximum torque
N_HI= speed at high idle
The Governor's regulation is ______ %. (Rounded off to 2 decimal places)

Ques 24 GATE 2025

An engine, running at 1200 rpm, drives a 1.2 m diameter rigid wheel on a non-deformable surface at 5 km.h^-1 forward speed. The power is transmitted from engine to the wheel through a transmission gear box (gear ratio =3:1), a differential (gear ratio =4:1), and a final drive (gear ratio =n:1). Neglecting the deformation of the wheel and wheel slip, the value of n is ______ (Rounded off to 2 decimal places)

Ques 25 GATE 2025

A solid round uniform diameter shaft is transmitting 25 kW power at 540 rpm. The maximum allowable shear stress of the shaft material is 35 MPa. If the maximum torque exceeds the mean torque by 20%, neglecting the bending effect, the minimum shaft diameter is ______ mm. (Rounded off to 2 decimal places)

Ques 26 GATE 2025

The height of CG of a 4WD tractor with equal tread (1.25 m) in front and rear is 0.85 m. The tractor overturns during turning at a speed of 18 km.h^-1. Neglecting the frictional forces on the tractor wheels, the turning radius is ______ m. (Rounded off to 2 decimal places)