What is the process of mixing of soils known as?
Correct answer C. The correct option is not present above
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Agriculture MCQs
Page 31 of Agriculture multiple-choice questions with answers. Tap an option to check yourself.
Page 31 of 135
A spoil bank is formed when the volume of excavated soil is ____ the embankment filling required.
Correct answer C. In excess of
Which organisms are first to decompose organic matter?
Correct answer A. Fungi imperfecti
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What determines the composition of an igneous rock?
Correct answer B. Composition of molten magma
Counter berms are provided on a canal so that the saturation gradient line stays ____ the bank. Which word fills the blank?
Correct answer A. Within
The saturation gradient line must stay within the body of a canal embankment. At what slope does it lie in loamy soils?
Correct answer C. 1:4 to 1:6
What is the rhizoplane?
Correct answer C. Root surface
For an economical gravity dam design, between what values should the shear friction factor lie?
Correct answer D. 1.5 to 4.0
Waterlogging is caused by which water, which percolates down during excessive irrigation and joins the groundwater table?
Correct answer A. Gravity
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Which of the following is a component of both nucleic acids and proteins?
Correct answer C. N
Humus consists of humic substances, highly acidic, yellow to black, high molecular weight compounds that can be separated by different extraction methods. Which compounds are they?
Correct answer C. both A & B
What is the runoff from catchment areas, roads, buildings and fallow land called?
Correct answer C. Storm water
Apart from being a reservoir of plant nutrients, what else does soil organic matter do?
Correct answer D. All of these
What is the process of washing salts out of the root zone by applying canal water called?
Correct answer C. Leaching
What are the major phosphatic fertilisers used in Pakistan?
Correct answer D. All of the above
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Waterlogging and soil salinity are twin menaces that have badly affected agriculture. About how many hectares of land are lost each year?
Correct answer C. 40,000
All the SSP and some nitrophos fertiliser are made locally by the National Fertilizer Corporation (NFC). Where is SSP produced?
Correct answer D. All of these
What is a series of vertical steps built in a stream to prevent soil scouring called?
Correct answer C. Cascades
Where is Nitrophos manufactured in Pakistan?
Correct answer C. Multan
What is the ratio of the force causing a body to slide along a plane to the force normal to the plane called?
Correct answer C. Coefficient of friction