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Chronic iodine deficiency leads to reduced thyroid hormone production, causing hypothyroidism and its clinical manifestation myxoedema, characterised by non-pitting oedema, dry skin, and mental slowing.

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Bio-Technology QUESTION #10593

Question 8

Flow injection analysis (FIA) in bioprocess monitoring is most valued for:

In situ measurement of dissolved gases directly in the fermenter
Automated, reproducible, time-discrete chemical analysis of multiple analytes from a sample stream✔️
Continuous real-time measurement with no sampling required
Physical separation of cells from the broth online

Correct Answer Logic:

FIA operates by injecting a precisely measured sample volume into a flowing carrier stream where chemical/enzymatic reactions occur in a plug-flow reactor coil. A detector (photometric, amperometric, or biosensor) measures the reaction product. Key advantages: high automation, reproducibility (~99%), ability to handle complex matrices via dilution, and rapid analysis (<1 min per sample). It interfaces with the fermenter via cross-flow filters, avoiding sterilisation problems.

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General Knowledge QUESTION #4725

Question 9

Xinhua is the official state news agency of which country?

China✔️
Russia
North Korea
Japan

Correct Answer Logic:

Xinhua News Agency, founded in 1931, is the official state news agency of the People's Republic of China and the largest news agency in the world by number of correspondents.

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Security Measures to Maintain Law and Order QUESTION #835

Question 10

When maintaining order, an ASF officer may arrest a person without a warrant if the offense is:

Non-cognizable
Administrative
Cognizable✔️
Only if it involves a weapon

Correct Answer Logic:

Under Section 7(2), an officer may arrest without warrant any person involved in a cognizable offense within airport limits.

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General Knowledge QUESTION #4796

Question 11

Which is the deepest ocean in the world?

Arctic
Atlantic
Pacific✔️
Indian

Correct Answer Logic:

The Pacific Ocean is the world's largest and deepest ocean, with an average depth of about 4,000 meters and a maximum depth of 11,034 meters in the Mariana Trench.

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General Knowledge QUESTION #8668

Question 12

How much time do sun rays take to reach the Earth?

5 minutes
7 minutes
8 minutes✔️
10 minutes

Correct Answer Logic:

Sunlight takes about 8 minutes and 20 seconds.

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Education QUESTION #6904

Question 13

Which of the following BEST characterizes the difference between 'primary prevention,' 'secondary prevention,' and 'tertiary prevention' in the context of school violence control?

Primary targets all students; secondary targets teachers; tertiary targets parents
Primary prevents problems from emerging through curriculum design; secondary provides tailored interventions for at-risk students; tertiary delivers intensive wraparound services for the most severely at-risk✔️
Primary uses counseling; secondary uses suspension; tertiary uses expulsion
Primary is annual; secondary is termly; tertiary is weekly

Correct Answer Logic:

These three levels of violence prevention form a tiered intervention model. Primary prevention is universal and proactive — embedding anti-violence principles in the curriculum for all students. Secondary prevention is selective — targeting students showing early at-risk indicators. Tertiary prevention is intensive — providing comprehensive, multi-agency support for students with severe behavioral and social challenges.

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MBBS QUESTION #10154

Question 14

Loose (areolar) connective tissue is histologically characterized by:

Densely packed parallel collagen bundles with few cells
Sparse cells (fibroblasts, macrophages) within abundant ground substance and a loosely arranged fiber network✔️
Calcified matrix with osteocytes housed in lacunae
Chondrocytes in lacunae surrounded by a firm cartilage matrix

Correct Answer Logic:

Areolar tissue is the most widely distributed connective tissue, containing fibroblasts, macrophages, mast cells and scattered collagen/elastic fibers within abundant ground substance — providing a flexible packing and pathway for vessels and nerves, and the first line of the body's defense/repair response.

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Professional QUESTION #1830

Question 15

Under Section 9(2) of the Civil Servants Act 1973, promotions to a non-selection post are made on what basis?

Selection on merit only
Seniority-cum-fitness✔️
Fitness-cum-seniority
Recommendation of the departmental selection board alone

Correct Answer Logic:

Section 9(2)(b) provides that in the case of a non-selection post, promotions shall be made on the basis of seniority-cum-fitness. In contrast, selection posts are filled on the basis of selection on merit under Section 9(2)(a). The distinction between the two criteria is a frequently tested provision.

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Maths QUESTION #2804

Question 16

Find the LCM of 12, 18, and 24.

36
48
72✔️
144

Correct Answer Logic:

Prime factorization: $12 = 2^2 \times 3$, $18 = 2 \times 3^2$, $24 = 2^3 \times 3$. LCM = $2^3 \times 3^2 = 8 \times 9 = 72$.

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Islamic Studies QUESTION #659

Question 17

Who introduced the postal system (Barid) in the Islamic state?

Hazrat Umar
Hazrat Muawiyah✔️
Abdul Malik bin Marwan
None of these

Correct Answer Logic:

Hazrat Muawiyah I is credited with establishing the organized postal service.

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General Science and Ability QUESTION #249

Question 18

If the radius of a circle is increased three times then its area is increased:

Three times
Six times
Nine times✔️
None of these

Correct Answer Logic:

Area A=πr2. If r becomes 3r, then A becomes π(3r)2=9πr2.

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Biology QUESTION #7247

Question 19

In prokaryotes, chromatophores are:

Specialized granules responsible for colouration of cells
Structures responsible for organizing the shape of cells
Inclusion bodies lying free inside the cells for carrying out various metabolic activities
Internal membrane systems that become extensive and complex in photosynthetic bacteria✔️

Correct Answer Logic:

In prokaryotes, chromatophores are internal membrane systems (invaginations of plasma membrane) that become extensive and complex in photosynthetic bacteria such as purple bacteria and green sulfur bacteria. They bear photosynthetic pigments and are functionally analogous to chloroplasts.

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Islamic Studies QUESTION #7613

Question 20

وہ طلاق جس میں شوہر 'رجوع' کا حق کھو دیتا ہے کہلاتی ہے:

رائی
احسن
بائن✔️
ان میں سے کوئی نہیں

Correct Answer Logic:

طلاق بائن میں شوہر کو رجوع کا حق نہیں ہوتا، البتہ نئے نکاح اور مہر کے ساتھ دوبارہ شادی کر سکتا ہے۔

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