AGRICULTURE MCQS
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چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
کرنٹ میٹر کس چیز کی پیمائش کے لیے استعمال ہوتا ہے؟
- Discharge
- Velocity of flow of water
- Depth of flow of water
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- A current meter is an instrument used to measure the velocity of flowing water in rivers, canals, and streams.
- The instrument is placed at selected points in the water, and its readings help determine the flow velocity.
- Water discharge can then be calculated using the measured velocity and the cross-sectional area of the channel.
Last verified on 16-10-2026
مٹی کے مساموں میں سطحی تناؤ کی وجہ سے رکا ہوا پانی کیا کہلاتا ہے؟
- Capillary water
- Gravitational water
- Hygroscopic water
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- Capillary water is retained in the small pores of soil by capillary forces arising from surface tension and adhesion.
- It is the main form of soil water available for plant absorption.
- Capillary water can move through soil pores in response to differences in water potential.
Last verified on 16-10-2026
- Water held at full saturation
- Water held at permanent wilting point
- Water retained after gravitational water has drained
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- Field capacity is the amount of water remaining in soil after excess gravitational water has drained away.
- At this stage, the soil retains water in its pores, making much of it available for plant roots to absorb.
- Field capacity is an important measure for irrigation scheduling and determining the water-holding capacity of soil.
Last verified on 16-10-2026
پودوں کے لیے دستیاب پانی بنیادی طور پر کون سا ہوتا ہے؟
- Gravitational water
- Capillary water
- Hygroscopic water
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- Capillary water is held in the small pores of soil.
- It is the main source of water available for plant absorption.
- It is retained by capillary forces, allowing plant roots to absorb it against gravity.
Last verified on 16-10-2026
جب زرعی طلب کم ہوتی ہے تو مجموعی پیداوار پر عموماً کیا اثر پڑتا ہے؟
- Increases
- Decreases
- Remains the same
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- When demand for agricultural products decreases, farmers generally have less incentive to produce the same quantity.
- Lower demand can reduce market prices and farmers’ expected income, leading them to reduce production over time.
- The response is not always immediate because agricultural production also depends on weather, input costs, government policies, and existing stocks.
Last verified on 16-10-2026
سخت زمین میں استعمال ہونے والے بڑے دندانے والے زرعی آلات کس سے متعلق ہیں؟
- Subsoiler
- Chisel plough
- Disc harrow
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- A chisel plough is a tillage implement with strong.
- It is widely spaced tines used to loosen hard soil and break compacted layers while leaving much of the soil surface relatively undisturbed.
- Its large, rigid shanks can penetrate firm soil and improve water infiltration and root growth.
Last verified on 16-10-2026
گندم کی لوز سمٹ بیماری کس ذریعے سے پھیلتی ہے؟
- Water
- Seed
- Soil
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- Loose smut of wheat is a seed-borne fungal disease caused by Ustilago tritici.
- The fungus infects the developing wheat embryo, and the infected seed may appear healthy externally.
- When infected seeds germinate, the fungus grows with the plant and eventually replaces the grain in the ear with black, powdery spores.
Last verified on 16-10-2026
زرعی جنگلات پر مبنی صنعت کون سی ہے؟
- Textile
- Furniture
- Construction
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- Agroforestry is a land-use system that combines trees or shrubs with agricultural crops and/or livestock.
- The furniture industry uses wood obtained from trees grown in forests and agroforestry systems.
- Trees grown on farms can provide timber, reduce pressure on natural forests, and generate additional income for farmers.
Last verified on 16-10-2026
ڈینیٹریفیکیشن کس قسم کا عمل ہے؟
- Hydrolysis
- Oxidation
- Reduction
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- Denitrification is a biological reduction process in which microorganisms convert nitrate into gaseous nitrogen compounds, mainly nitrogen gas.
- It usually occurs under anaerobic conditions, when oxygen is limited in the soil.
- This process returns nitrogen to the atmosphere and reduces the amount of nitrogen available to plants.
Last verified on 16-10-2026
زمین کی سوڈیسٹی کا علاج کس طریقے سے کیا جاتا ہے؟
- Gypsum
- Leaching
- Both (Gypsum followed by Leaching)
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- Sodicity occurs when excessive exchangeable sodium accumulates in the soil.
- It damaging soil structure and reducing water infiltration.
- Gypsum supplies calcium, which replaces sodium on soil exchange sites.
- Leaching then uses suitable-quality water to wash the displaced sodium salts down through the soil profile.
- Adequate drainage is essential.
Last verified on 16-10-2026
