Agricultural Engineering Gate 2016 Questions with Answer

Ques 53 GATE 2016

The observed rainfall of a 12 h duration event is given in the table below. If the phi (Φ) index of the storm is 0.46, the total direct runoff of the event in mm will be.

Ques 54 GATE 2016

A solid set permanent micro-irrigation system is installed in a vegetable field of 1 ha area. The spacing between the micro sprinklers is 2.5 m and spacing between laterals is 5 m. The peak evapotranspiration rate is 10 mm day-1. The application efficiency is 80%. Irrigation system operates 5 hours in a day. The total operating head of the pump is 30 m. At 65% pump efficiency, the horse power of the pump is

Ques 55 GATE 2016

In a subsurface drainage system, the peak discharge through tile drain under full flow condition is given by Q=6.715 ×10^-5 d^1.65 S^0.5 / n where, Q = discharge,m3 s-1, S = drain bed slope and n = Manning’s roughness coefficient. Size of the drain in mm is

Ques 56 GATE 2016

The discharge of a centrifugal pump is 25 L s-1 against the delivery head of 10 m. The outlet of the delivery pipe is submerged. A 200 m long 100 mm diameter pipe is connected with the delivery end of the pump. The friction factor for the pipe is 0.03. The minor losses in the delivery pipe are 1 m. The pressure at the delivery end of the pump in kPa is

Ques 57 GATE 2016

A fully penetrating tube well in a 30 m deep confined aquifer with hydraulic conductivity of 4×10-4 m s-1 has 50 L s-1 discharge. The drawdown and radius of influence are 5 m and 250 m, respectively. Diameter of the tube well in mm is

Ques 58 GATE 2016

A water pumping system is being driven by a propeller type wind turbine having the power coefficient of 0.4. The total pumping head and rate of discharge are 20 m and 7.0 L s-1, respectively. Mean wind velocity is 18 km h-1 and the density of air is 1.2 kg m-3. The required diameter of the propeller in m is

Ques 59 GATE 2016

A gasifier uses rice husk as fuel and generates producer gas containing CO – 23%, CO2 – 4.4%, O2 – 2.6% and N2 – 70%; all expressed in mole%. Atomic mass of C, O and N are 12, 16 and 14, respectively. Average molecular weight of the producer gas in kg kgmol-1 is

Ques 60 GATE 2016

A watershed area of 1851 hectare has maximum distance of 7.12 km from the outlet to the farthest point on the divide line. The form factor of the watershed is

Ques 61 GATE 2016

Annual average soil loss from a watershed has been measured as 20 Mg ha-1 year-1. Watershed has 8% land slope and 84 m maximum slope length. Assume all other factors same and dimensionless exponent for slope factor is 0.5. To reduce soil loss from the watershed to 10 Mg ha-1 year-1, the maximum slope length in m should be

Ques 62 GATE 2016

If the width of bench terrace is W, drop D and existing land slope S; then for 150% batter slope, the drop D will be

Ques 63 GATE 2016

A 3 m high retaining wall supports sandy soil of unit weight 18.5 kN m-3. The angle of shearing resistance (φ) is 30° and the surface of soil is horizontal. The magnitude of the active thrust (in kN m-1) and its acting point from the top (in m) are

Ques 64 GATE 2016

A soil has bulk density and particle density of 1.48 Mg m-3 and 2.64 Mg m-3, respectively. The saturated volumetric moisture content of soil is 36%. The porosity and void ratio of the soil are

Ques 65 GATE 2016

The back sight of 1.258 m was observed for the bench mark (BM) at reduced level (RL) of 48 m. The corresponding fore sight on the staff held vertically inverted to the underside of a bridge beam is 4.645 m. The RL at the underside of the bridge beam in m is