Agriculture MCQs

Page No. 186

The resultant pressure of water acting at ________________________?


aH/3

✓


bH/2

✖


c2H/3

✖


dNone of the above

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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

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cAlluvial canal

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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

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dNone of the above

✖


View Answer Medium knock down

Pheromone used against fruity fly is___________________?


aDichlorvos

✓


bMelathion

✖


cCarbofuron

✖


dMancoze

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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

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dDessicant

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View Answer Persistence

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