agriculture MCQs – Page 207

Practise multiple-choice questions from agriculture for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

4121. To be more close to the actual field conditions, some times artificial rain tests conducted, the instrument used is called ___________________?
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A. Infiltrometer

B. Rain simulator

C. v Hydrometer

D. I.C. curve

4122. A water pool is designed on the down stream of the hydraulic structure to dissipate the energy of falling water by providing a water cushion called ______________________?
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A. Water cushion

B. Cistern

C. Down stream pond

D. Water pool

4123. Ground water moving down wards in the un-saturated ground above the water table is called___________________?
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A. Capillary water

B. Hygroscopic water

C. All are correct

D. Gravity water
4124. A digging out of earth to make trench for any engineering purpose is called ______________________?
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A. Earth filling

B. Cavitations

C. Excavation

D. borrow pitting

4125. The meandering pattern of a river is developed by ____________________?
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A. Dominant discharge

B. Average discharge

C. Maximum discharge

D. Critical discharge

4126. The invented filter is provided just after the end of concrete floor to reduce () possibility of _________________?
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A. Piping

B. a and b are correct

C. Up thrust

D. Under mining

4127. The property of liquid which controls its rate of flow is called __________________?
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A. Viscosity

B. Compressibility

C. Specific gravity

D. Capillarity

4128. On relative basis, when one soil is eroded as compared to other soil under same conditions, this property is called __________________?
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A. All are correct

B. Compact ability

C. Viscosity

D. Erodibility
4129. Canals normally excavated directly from river without head regulator is called___________________?
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A. Inundation canals

B. Perennial canals

C. Non-perennial canals

D. Water shed canals

4130. The unit of kinetic viscosity is equivalent to ______________________?
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A. All are correct

B. cm/sec

C. cm2/sec

D. cm/sec2

4131. The specific weight of water at normal pressure of 760 mm, 4C temperature and at mean sea level is ______________________?
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A. 1100kg/m3

B. 1020kg/m3

C. 960kg/m3

D. 1000ka/m3
4132. To avoid scouring from end of structure, it is necessary to provide a ________________ at the exit point?
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A. Stone blocks

B. Stone apron

C. Vertical cutoff

D. Stone boom

4133. A river which does not change its alignment slope and its regime significantly is called________________?
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A. Aggrading river

B. Degrading river

C. Deltaic River

D. Stable river
4134. An outlet through which the discharge depends upon the water level in the distributary is called ___________________?
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A. Non-flexible

B. Non-modular

C. Rigid module

D. Flexible module
4135. Art of mixing saline water with fresh water in accordance with some ratio for irrigation purpose is called _________________?
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A. Amalgamation

B. Mixing of water

C. Desalinization

D. All are correct

4136. According to Blight, the percolating water seeps along the lower contour of the hydraulic structure, the length traversed by this water is called ______________________?
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A. Creep length

B. Undermining

C. Seeping length

D. Piping

4137. The water particles held in soil pores of root zone by _____________ against gravity and is known as capillary water?
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A. Tension force

B. Gravity force

C. Capillary force

D. Cohesive force

4138. Which of the following has highest-coefficient of discharge_____________________?
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A. Cippoletti weir

B. Sharp edged orifice

C. Broad crested weir

D. Venturi meter
4139. According to Kennedys silt theory , the critical velocity is directly proportional to depth of flow _____________________?
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A. D0.66

B. D0.67

C. D0.64

D. D0.65

4140. The horizontal flow of water in irrigation channel or canal leading to water loss is called as:_________?
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A. Infiltration

B. Seepage

C. Percolation

D. All of these