All MCQs - Agriculture Officer Past Papers and Syllabus Practice | PakExamPoint

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501. The plants which change from vegetative to reproductive during long days are called ______?

وہ پودے جو لمبے دنوں میں سبزیاتی مرحلے سے تولیدی مرحلے میں آتے ہیں کیا کہلاتے ہیں؟

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Answer: Long day plants

Explanation Long day plants flower when day length exceeds a critical duration (long daylight hours). Long days trigger the shift from vegetative growth to reproductive (flowering) stage. Examples: Wheat, barley, spinach, radish. Last verified on 01-02-2026

502. Which crop is commonly cultivated in trenches?

کون سی فصل عام طور پر خندقوں میں کاشت کی جاتی ہے؟

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Answer: Sugarcane

Explanation Sugarcane is often cultivated using trench method. Trenches help in proper root development and water management . Widely practiced in Pakistan for higher yield . Last verified on 30-01-2026

503. Hydroponic system doesn’t need ______?

ہائڈروپونک سسٹم کو کس چیز کی ضرورت نہیں ہوتی؟

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Answer: Soil

Explanation Hydroponics is a soilless cultivation system where plants grow in nutrient-rich water . Water and fertilizers are supplied directly to roots. Additional information : Hydroponics reduces soil-borne diseases. Can be set up indoors or in areas with poor soil. Last verified on 25-01-2026

504. The period intervening between the first watering and last irrigation is called ______?

پہلی آبپاشی اور آخری آبپاشی کے درمیان کا عرصہ کیا کہلاتا ہے؟

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Answer: Base Period

Explanation The time between the first and last irrigation of a crop is important for planning water schedules . It represents the entire irrigation period needed for crop growth. This period is called the Base Period . Additional information : Base period helps in calculating water scheduling and canal supply. It varies for different crops and climatic conditions. Last verified on 24-01-2026

505. According to FAO standards, DBH of a tree is measured at what height from the ground?

ایف اے او کے معیار کے مطابق درخت کا ڈی بی ایچ زمین سے کتنی اونچائی پر ناپا جاتا ہے؟

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Answer: 1.3 meter

Explanation DBH = Diameter at Breast Height . It is the standard method to measure tree diameter . According to FAO and forestry standards , it is measured at 1.3 m (4.5 ft) from ground level. This gives uniform and comparable tree data. Widely used in forest inventory and research . Last verified on 04-02-2026

506. To solve an emerging problem, which is the most efficient method?

اُبھرتے ہوئے مسئلے کو حل کرنے کے لیے سب سے مؤثر طریقہ کون سا ہے؟

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Answer: Training and Visit (T & V) method

Explanation Training and Visit (T & V) method is highly effective for solving emerging agricultural problems. Involves direct training of farmers and regular visits by extension workers . Ensures quick adoption of solutions and improved productivity. Last verified on 30-01-2026

507. A*b = (a + b) + ab the (3*4) - (2*3) = _____?

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Answer: 8

Explanation a*b = (a+b) + ab 3_4 = (3+4) + 3×4 = 7 + 12 = 19 2_3 = (2+3) + 2×3 = 5 + 6 = 11 (3_4) - (2_3) = 19 - 11 = 8

508. Which sector is the largest contributor to Pakistan's GDP?

پاکستان کے جی ڈی پی میں کون سا شعبہ سب سے بڑا معاون ہے؟

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Answer: Services

Explanation The services sector is the largest contributor to Pakistan’s GDP . It accounting for around 58% of the total GDP. Agriculture contributes about 23% . Industry/manufacturing contributes around 20% . Additional information : Services include finance, transport, education, health, and IT. Growth in services reflects urbanization and modernization of the economy. Last verified on 19-01-2026

509. What is the first step in Extension work?

توسیعی کام میں پہلا مرحلہ کیا ہوتا ہے؟

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Answer: Analyze the situation

Explanation The first step in extension work is to analyze the situation . It involves identifying problems, needs , and resources of the target community. Additional information : Major steps in extension work : Analyze the situation Program planning Program execution Evaluation Re-planning Last verified on 25-01-2026

510. Pesticides used for killing or controlling insect eggs are called _____?

وہ زرعی زہریں جو کیڑوں کے انڈوں کو مارنے یا قابو میں رکھنے کے لیے استعمال ہوتی ہیں، کیا کہلاتی ہیں؟

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Answer: Ovicides

Explanation Ovicides are pesticides specifically used to kill or control insect eggs before they hatch. They help break the life cycle of insects at the earliest stage. Additional information : Ovicides : Act on insect eggs Larvicides : Act on larvae (young stage) Adulticides : Act on adult insects Last verified on 27-01-2026

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