Discharge through an irrigation outlet is independent of the water levels in the distributary and water courses in case of
(A) non-modular outlet (B) semi-modular outlet
(C) Kennedy’s gauge outlet (D) Gibb’s module outlet

The USDA classification of irrigation water with regard to alkali and salinity hazards is based on
(A)
Exchangeable sodium percentage and pH
(B)
Electrical conductivity and Sodium adsorption ratio
(C)
Electrical conductivity and pH
(D)
Sodium percentage and pH

A steady discharge of 60 m3 s-1 is passing through a trapezoidal irrigation channel with a bottom width of 5 m, bed slope of 0.01% and Manning’s roughness coefficient of 0.025. The conveyance of the channel in m3 s-1 is______.

Dupuit-Forchheimer assumptions are used for analyzing groundwater flow in
(A) confined aquifers (B) leaky confined aquifers
(C) unconfined aquifers (D) both confined and unconfined aquifers

An unsteady time-drawdown pumping test was conducted in a confined aquifer and the drawdown was measured with time in an observation well located at a certain distance away from the pumping well. Using these time-drawdown data, we can determine
(A) transmissivity only (B) storage coefficient only
(C) specific storage only (D) both transmissivity and storage coefficient

Mole drain is the most suitable drainage system for
(A) heavy clay soil (B) loamy soil (C) sandy soil (D) silty soil

The efficiency of a cyclone separator can be increased by
(A) decreasing the size of the particles (B) increasing the velocity of inlet air
(C) reducing the length of the separator (D) reducing the diameter of air outlet

The correct statement in respect of rice parboiling process is
(A)
kernel structure becomes soft and it cooks easily
(B)
heat treatment during parboiling preserves some antioxidants
(C)
parboiled rice retains more proteins, vitamins and minerals
(D)
shelling of parboiled rice becomes more difficult

The wall of a cold storage is made up of four layers; concrete, brick, cardboard and paint with respective thickness of 5, 60, 8 and 1 mm, and their corresponding ther
mal conductivities are 0.8, 0.7, 0.04 and 0.15 W m–1 K–1. The overall resistance of the wall to conduction heat transfer in m2 K W–1 is _____.

Two very large parallel walls (gray bodies) facing each other have emissivities of 0.5 and 0.7. The view factor between these two walls is_____.

In a counter-current flow double pipe heat exchanger (DPHE), temperature difference between the hot and cold liquids at all positions is held constant at C. If the effectiveness of the heat exchanger is 0.65 and heat capacity ratio of hot and cold liquids is 1, the number of transfer units (NTU) is ______.

The values of C and n for raisin are 1.283×10–4 K-1 and 1.02, respectively in the Henderson equation. The equilibrium moisture content of raisin in percent dry basis corresponding to the air with 70% relative humidity at 40 °C is ______.

A power operated chaff cutter with two knives is rotating at 600 rpm. It has a conveyor type feeding mechanism which operates at a speed of 0.6 m s-1. The theoretical chaff length in mm is
(A) 20 (B) 30 (C) 60 (D) 90