Agricultural Engineering Gate 2017 Questions with Answer

Ques 14 GATE 2017

If the Reel Speed Index of a grain combine is more than 1.5, it will increase

Ques 15 GATE 2017

A diesel fuel has same ignition delay as that of blend of two reference fuels namely 56 n-cetane and 44 hepta-methylnonane. The cetane number of the diesel fuel is

Ques 16 GATE 2017

Air temperature at the beginning of adiabatic compression in an IC engine is 27°C and the engine compression ratio is 16:1. The temperature of air at the end of the compression in °C will be

Ques 17 GATE 2017

In fuel property determination, Reid vapour pressure test is used for measuring

Ques 18 GATE 2017

A tractor pulls 8 kN drawbar load against 4 kN rolling resistance. If the tractor develops 57% tractive efficiency, the slip experienced by the tractor in percentage will be

Ques 19 GATE 2017

Length of the husking zone in a rubber roll paddy dehusker, having d as roll diameter, c as clearance between the rolls, and b as grain thickness, is

Ques 20 GATE 2017

A subsoiler operating at 400 mm depth requires 15 kW peak drawbar power at 3 km/h speed. The standard is rigidly fixed vertically on the main frame. The resultant soil resistance acts horizontally at a vertical distance of 450 mm from the main frame. The standard has rectangular cross-section with width to thickness ratio of 4:1, and it fails due to bending. If the allowable bending stress is 90 N/mm², the width of the standard in mm will be

Ques 21 GATE 2017

A 9-row fluted roller type seed drill with 400 mm ground wheel diameter is used for sowing wheat at 200 mm row spacing. Each fluted roller discharges 6500 mm³ volume of seeds per revolution. The ratio of ground wheel rpm to fluted roller shaft rpm is 2:1. If the bulk density of wheat is 850 kg/m³, the seed rate in kg/ha will be

Ques 22 GATE 2017

The diameter of feed rollers of a conveyor type power chaff cutter is 100 mm and they are rotating at 90 rpm for cutting the dry fodder. The effective length of each feed roller is 250 mm and the average clearance between them is 15 mm. The compressed density of the material while passing through the feed rollers is 250 kg/m³. The throughput capacity of the chaff cutter in ton/h is

Ques 23 GATE 2017

The horizontal component of resultant soil thrust T acting on each gang of a single acting disc harrow is 1650 N. The resultant downward load W acting on each gang is 2500 N. The perpendicular distance of T from the gang axis is 200 mm. In order to get a uniform depth of cut, the distance between the line of action of W and the centre of gang in mm will be

Ques 24 GATE 2017

A load of 3 kN is acting on a tyre having 150 mm nominal width. The effective friction coefficient of tyre and ground interaction is 0.6 and the kingpin offset is 10 mm. Assuming the tyre impression on ground as circle of diameter same as the tyre nominal width, the kingpin torque of the tyre in N m will be

Ques 25 GATE 2017

In a tractor power transmission, the input pinion 24 teeth is in mesh with a gear 46 teeth on counter shaft and another gear 20 teeth of counter shaft is in mesh with main shaft gear 50 teeth. The engine is running at 1800 rpm, differential gear ratio is 3.51 and final drive ratio is 4:1. If the tractor is fitted with 1.2 m diameter rear wheels, the forward speed of the tractor in km/h is

Ques 26 GATE 2017

A hydraulic system comprising of a pump and a single acting cylinder lifts 11 kN load. The pump flow rate is 25 L/min and its overall efficiency is 80%. The cylinder diameter is 80 mm and its efficiency is 90%. If the pressure drop in the hydraulic circuit is 500 kPa, the power required to drive the pump in kW will be