Agriculture MCQs

Page No. 186

The resultant pressure of water acting at ________________________?


aH/3


bH/2


c2H/3


dNone of the above


View Answer H/3

An area is officially declared as drought effected if the mean Annual rain fall is less than of the annual Potential evaporation,______________?


a70%


b75%


c80%


d85%


View Answer 85%

A channel artificially constructed for water conveyance of appreciable quantities with no problem of silting and scouring is called ____________________?


aA regime canal


bStable canal


cAlluvial canal


dA and B are correct


View Answer A and B are correct

The law which states that the intensity of pressure at any point in a liquid at rest is same in all directions_________________?


aDarcy’s law


bArchimed’s law


cPascal’s law


dNone


View Answer Pascal’s law

Compressibility of a liquid is defined as vertical or contraction in volume with variation of pressure. Therefore water is considered as ___________________?


aExpandable


bIn-Compressible


cCompressible


dAll are correct


View Answer In-Compressible

Specific weight of a liquid is defined as the weight per unit volume at standard Temperature & pressure therefore specific weight of water of water is equal to ____________ kg/m3 in MKS system ?


a990


b995


c999


d1000


View Answer 1000

What KD50____________________?


aMedium knock down


bHighly knock down


cLow knock down


dNone of the above


View Answer Medium knock down

Pheromone used against fruity fly is___________________?


aDichlorvos


bMelathion


cCarbofuron


dMancoze


View Answer Dichlorvos

The width of the area treated in one pass by a sprayer or other applicator is called___________________?


aDrift


bSwath


cAerosol


dToxin


View Answer Swath

The quality a of a pesticide to remain as an effective residue because of its low volatility and chemical stability is termed as__________________?


aPersistence


bAerosol


cDefoliant


dDessicant


View Answer Persistence

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