PPSC AGRICULTURE OFFICER PAST PAPER HELD ON 19-03-2023
Agriculture Officer Paper held on 19/3/2023.
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چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
ڈیری صنعت میں دودھ کی شوگر کو لیکٹک ایسڈ میں تبدیل کرنے کے لیے کون سے بیکٹیریا سب سے زیادہ استعمال ہوتے ہیں؟
- Lactobacillus
- Streptococcus
- Both A and B
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- In the dairy industry, milk sugar (lactose) is converted into lactic acid through fermentation.
- This is carried out by lactic acid bacteria, mainly Lactobacillus and Streptococcus.
- Lactic acid gives yoghurt, cheese, and other fermented dairy products their taste, texture, and shelf-life.
Last verified on 01-02-2026
فرمنٹڈ ڈیری مصنوعات کی مثالیں کون سی ہیں؟
- Cheese and Yoghurt
- Butter and cream
- Cream and ice cream
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- Fermentation in dairy uses beneficial microorganisms to convert sugars into acids or alcohol.
- Examples of fermented dairy products include cheese and yoghurt.
- Fermentation improves taste, texture, shelf-life, and digestibility.
Last verified on 01-02-2026
کیننگ، کولڈ اسٹوریج، فریزنگ یا خشک کرنے سے پہلے پودوں کے مواد میں کچھ انزائمز کو ختم کرنے کے لیے عام طور پر کیا کیا جاتا ہے؟
- Blanching
- Sterilization
- Pasteurization
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- Before preserving plant foods through canning, freezing, or dehydration, some enzymes need to be inactivated to prevent spoilage.
- This is done by blanching, which involves briefly heating the plant material in hot water or steam.
- Blanching helps retain color, flavor, texture, and nutrients during storage.
Last verified on 01-02-2026
کیمیائی یا حیاتیاتی طور پر، انزائم بنیادی طور پر کس نوعیت کے ہوتے ہیں؟
- Protein
- Carbohydrate
- Lipid
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- Enzymes are biological molecules that catalyze chemical reactions in living organisms.
- Chemically, enzymes are primarily proteins, composed of amino acids.
- Some enzymes may have non-protein cofactors, but the main structure is protein-based.
Last verified on 01-02-2026
چونا، لیموں کا رس اور اچار کس قسم کے کھانے ہیں؟
- Low acid
- Medium acid
- High acid
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- Foods can be classified based on their acidity (pH level).
- Lime, lemon juice, and pickles are high-acid foods because they contain citric or acetic acid.
- High-acid foods help preserve themselves and prevent microbial growth.
Last verified on 01-02-2026
قدیم ترین کھانے کو محفوظ کرنے کے طریقوں میں کون سا شامل ہے؟
- Drying and dehydration
- Irradiation
- Cold storage and freezing
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- Humans have preserved food for thousands of years using simple techniques.
- Drying and dehydration are among the oldest methods of food preservation.
- These methods remove moisture, preventing the growth of bacteria and fungi.
- Common examples include dried fruits, grains, and sun-dried meat.
Last verified on 01-02-2026
جب کسی چیز کی فراہمی کم ہو جاتی ہے، تو اس کی قیمت کیا ہوتی ہے؟
- Increases
- Decreases
- Both A and B
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- In economics, the law of supply and demand determines the price of a commodity.
- When the supply of a commodity decreases while demand remains the same, the price increases.
- This happens because scarcity makes the commodity more valuable.
Last verified on 01-02-2026
وہ سود دینے والا جمع جسے جمع کرنے والا عام طور پر کسی بھی وقت نکال سکتا ہے، کیا کہلاتا ہے؟
- Capital deposit
- Fixed deposit
- Saving deposit
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- A saving deposit is a bank account that earns interest and allows the depositor to withdraw money anytime.
- It is designed for safekeeping of money with easy access.
- Interest rates are usually lower than fixed deposits but provide high liquidity.
Last verified on 01-02-2026
کسی مال یا خدمت کی قانونی طور پر مقرر کردہ زیادہ سے زیادہ قیمت کو کیا کہتے ہیں؟
- Retail price
- Ceiling price
- Max price
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- Governments sometimes set a legal maximum price to protect consumers from overpricing.
- This legally fixed maximum price is called the ceiling price.
- It ensures essential goods and services remain affordable.
Last verified on 01-02-2026
وہ بازار جس میں ایک ملک کا پیسہ دوسرے ملک کے پیسے خریدنے کے لیے استعمال کیا جا سکتا ہے، کیا کہلاتا ہے؟
- Money market
- International market
- Foreign exchange market
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- A foreign exchange market is where currencies of different countries are bought and sold.
- It allows a nation’s money to be exchanged for the money of another country.
- This market is essential for international trade, travel, and investment.
Last verified on 01-02-2026