महाराष्ट्र कृषि सेवा मुख्य परीक्षा २०१२

Drainage channel discharges 0.1 cubic metres of water per second and drains 360 hectares, what is the drainage coefficient of this land ?

What will be the formation level of upper and lower grid from centroid in the following case ? 

(i) centroid = 100 m 

(ii) slope =0.2% 

(iii) Grid distance = 30 m

What is the method of land levelling design; restricted to those fields where it is feasible to grade the field to a true plane ? 

Which equation gives the leaching requirement for the salt affected soil ?

What is the line which gives the sum of pressure head and datum head of a flowing fluid in a pipe with respect to some reference line, known as ?

What is the ratio between the actual velocity of a jet of liquid at vena - contracta and the theoretical velocity of jet, called ?

How is the safe agricultural area categorised as per the working group on problem identification in irrigated areas constituted by the Ministry of Water Resources Govt. of India (MOWR 1991) ?

What is generally the diameter of observation wells for pumping tests of wells ?

What is the relationship between duty (D), delta and base period (B) ?

Complete the following sentence meaningfully. 

Flow through channel is said to be steady, when velocity of flow is : 

What is the condition for the trapezoidal channel section to be most economical ? 

(m = hydraulic mean depth and d=depth of fluid)

Where the gravel filter and the base material are more or less uniformly graded for gravel envelope, without a lack or excess of certain particle sizes, a filter stability ratio is generally safe, when it is ?

Which of the following components of canal system is supposed to be maintained by farmer ?

What for are propeller pumps specitically adopted ?

At what flexibility the canal outlet is known to be hyper proportional ?

What is the structure known as when the HFL of the drain is sufficiently below the bottom of the canal so that the drainage water flows freely under gravity ? 

What does duty of any crop signify ?

What is the suction limit of a centrifugal pump ?

What are the characteristics of shallow tube wells ?

Which one of the following equations is used to determine the velocity of flow V, where L = distance, m; K=hydraulic conductivity, m/day; (h₁ -h₂) - elevation difference in water table, m?