महाराष्ट्र कृषि सेवा मुख्य परीक्षा २०१७

Which of the following formulae is used to design peak rate of runoff for spillway of a permanent gully control structure ? 

The slope length factor L, in the universal soil loss equation is determined by using the equation

He was the first man who discovered that an electromotive force (emf) is generated in a conductor when the conductor is cut by magnetic lines of force (flux).

Saltation, suspension and surface creep forms of movement of soil particles is associated with which type of soil erosion from the following ?

What will be the vertical interval between two consecutive contour bunds if the land slope is 3% ?

Which one of the following is not a permanent gully control structure ? 

Soil erosion which results in the form of uniform removal of soil from land surface is termed as

In case of streams, stream bank erosion generally takes place on the _____ side of the stream.

The damaging effect of floods depends on their supercriticality which is measured by the Froude number (Fr).

The flow is said to be supercritical, if

Threshold rainfall is defined as

Which one of the following is not an artificial Rainwater Harvesting technique ?

Apron type Rainwater Harvesting consists of treating the catchment area for maximum runoff. Which formula is used to compute the designed area to be aproned for the given water requirement ? 

Where A = Area (m2), b = 1.13 constant, U = Annual requirement (ltrs) and P = Average annual precipitation (mm).

A rectangular farm pond has the following dimensions :

a. Length = 10 m

b. Width = 5 m

c. Depth = 1 m
If it is totally filled in, what will the volume be in litres ?

A farm pond has the following specifications :

a. Bottom surface = 5 x 5 m
b. Depth = 5 m

c. Side slopes = 1 H:1 V
(on all the sides)

What will the size of the top of the farm pond be? 

Which of the following equations is used for water balance studies of a watershed (using conventional notations) ?

Which one of the following options cannot be included in the concept of watershed development ?

Delineation of a watershed is an exercise of

Which of the following formulae is used to design the diameter of the inlet pipe in a Drop Inlet Type spillway, which is a permanent gully control structure, where the outlet is not submerged ?

Out of different biological measures used to control erosion in a watershed, which one of the following is not a biological measure ?

Which of the following types of farm ponds should be selected where ground water table rise is within a few metres from the ground surface ?