agriculture MCQs – Page 42

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 Review each marked answer and report any item that may be outdated or unclear.

821. The under sluices in a weir are provided, at the level of upstream floor dispose off the sediment deposited on downstream is called______________________?
comments icon0
A. Scouring sluices

B. Under sluices

C. Sluice gates

D. Head sluices

822. On relative basis, when one soil is eroded as compared to other soil under same conditions, this property is called __________________?
comments icon0

A. All are correct

B. Erodibility

C. Viscosity

D. Compact ability

823. Recommended method for cotton sowing is________________?
comments icon0

A. Broad cast method

B. Ridge sowing method

C. Drill method

D. non of these

824. According to Kennedys silt theory , the critical velocity is directly proportional to depth of flow _____________________?
comments icon0

A. D0.67

B. D0.65

C. D0.66

D. D0.64
825. When FSL of the canal is sufficiently below the bottom of the drain, so that water flows freely under gravity, such structures is called_____________________?
comments icon0

A. Canal-syphon

B. Super-passage

C. Syphon Aqueduct

D. Syphon

826. Art of making saline water fit for irrigation and drinking through the processes of membrane technique and reverse osmosis is called ___________________?
comments icon0

A. Water application

B. All are correct

C. Desalinization

D. Water mixing

827. For strong Hydraulic jump containing maximum energy, the down stream glacis should be sloped at a slope of ______________ to dissipate max: energy?
comments icon0
A. 3:1 to 5:1

B. 5:1 to 6

C. 2:1 to 2.5:1

D. 2.5:1 to 3:1

828. In high floods, to avoid spilling of flood water over the gates, a wall is provided from pond level to high Flood level. This wall spans for the entire length of regulator, rest on piers, sustain water pressure by its weight called_____________________?
comments icon0
A. Breast wall

B. Divide wall

C. Retaining wall

D. Cantilever wall

829. The ratio of the rate of change of discharge through out let to the rate of c./v of water level of the distributary is called_________________?
comments icon0
A. Sensitivity

B. Proportionally

C. Flexibility

D. Setting

830. A river which does not change its alignment slope and its regime significantly is called________________?
comments icon0

A. Aggrading river

B. Deltaic River

C. Degrading river

D. Stable river
831. The groyne pointing upwards direction of flow is called ______________________?
comments icon0

A. Permeable

B. Repelling

C. Impermeable

D. Attracting

832. Bacillus thuringensis season cotton is a________________?
comments icon0

A. Fungi

B. non of these

C. Bacteria

D. Virus

833. The most economical central angle of an arch dam is made at ___________________?
comments icon0
A. 133!

B. 123

C. 153

D. 143

834. An example of monocot fiber yielding plant is_________________?
comments icon0

A. Crotalaria

B. Corchorus

C. Cocos

D. Clemates

835. The groyne pointing downwards in the direction of flow in fiver is called________________?
comments icon0
A. Attracting

B. Impermeable

C. Permeable

D. repelling

836. The stability analysis of earth dam founded on cohesion less silt material be made against_____________________?
comments icon0

A. Turning

B. Shear

C. Sinking

D. Buckling

837. According to Chezys formula, the discharge through an open channel is equal to _________________?
comments icon0
A. Ac?R.S

B. C (mi) <sup>1/2 </sup>

C. A (cmi)<sup>1/2 </sup>

D. A (c.A/pi) <sup>1/2 </sup>

838. The application of fertilizer nutrients in proportions best suited to the needs of the crop is called_________________?
comments icon0
A. Balanced fertilization

B. fertilizer placement

C. fertilizer use efficiency

D. Nitrogen use efficiency

839. The ratio of change of discharge of an outlet to the rate of change in level of water surface in distributary at its normal depth is called ____________________?
comments icon0

A. Durability

B. Flexibility

C. Flow ability

D. Sensitivity
840. A reference point on the ground of accurately known position which is a () point of leveling is called ________________?
comments icon0

A. Reference point

B. Fixed point

C. Check point

D. Control point