Explanation

• A Trap is used to block the passage of foul sewer gases.
• It contains a water seal that prevents gases from entering buildings.
• Traps are installed below sinks, wash basins, toilets, and floor drains.
• They are an essential part of a sanitary plumbing system.
• Common types include P-trap and S-trap.

Last verified on 04-08-2026

Explanation

• The WHO and many international standards recommend a drinking water pH range of 6.5–8.5.
• Water within this range is generally safe, non-corrosive, and suitable for consumption.
• A pH below 6.5 may cause corrosion, while a pH above 8.5 may affect taste and cause scaling.
• The ideal pH of pure water is 7.0 (neutral).

Last verified on 04-08-2026

Explanation

• Coagulation is the process in which flocs are produced after adding a coagulant.
• Tiny suspended particles lose their electrical charge and begin to clump together.
• During flocculation, these small flocs grow into larger, heavier flocs.
• The larger flocs are then removed by sedimentation and filtration.
• Coagulation is the first major step in conventional water treatment.

Last verified on 04-08-2026

Explanation

• Flocculation is the slow agitation of coagulant-mixed water.
• It follows the coagulation process in water treatment.
• Slow mixing helps tiny suspended particles combine into larger flocs.
• These flocs can then be removed by sedimentation and filtration.
• Flocculation is an essential step in producing clean drinking water.

Last verified on 04-08-2026

Explanation

• Place: Dhaka (then Bengal, British India)
• Founded on: 30 December 1906
• Founders: Nawab Salimullah, Agha Khan III, etc.
• Objective: Protection of Muslim political rights
• Role: Key political force behind Pakistan Movement

Last verified on 21-04-2026

Explanation

• Largest Muslim country by area is Kazakhstan.
• Largest Muslim country by Population is Indonesia.

Additional information:

• World Largest country by area is Russia.
• World Largest Country by Population is India.

Last  verified on 27-07-2026

Explanation

• Pakistan conducted its first nuclear test at the Ras Koh Hills in the Chagai Hills, Balochistan, on 28 May 1998.
• 5 Nuclear tests were conducted by Pakistan at 15:15 hrs PST on 28 May 1998.
• Chagai-I was Pakistan's first public test of nuclear weapons.

Additional information:

• Chagai-II is the codename assigned to the second atomic test conducted by Pakistan, carried out on 30 May 1998.
• These tests followed the Chagai-I series.
• The test site was Kharan Desert, Pakistan.
• The number of tests is 1.

Last verified on 30-03-2026

Explanation

• Quaid-e-Azam Muhammad Ali Jinnah joined the All India Muslim League in 1913.
• He was about 37 years old when he became a member of the Muslim League.

Additional information:

• Quaid-e-Azam joined the Indian National Congress in 1906 and left it in 1920.

Last verified on 21-07-2026

Explanation

• Badshahi Masjid in Lahore is also called the Emperor's Mosque
• In 1947, it became a national symbol of Pakistan.
• Built by Emperor Aurangzeb in 1671–1673.
• Architect: Nawab Zain Yar Jang Bahadur
• Construction was completed in 1673.
• The 3rd-largest mosque
• Number of minarets: 8
• Height: 69 m

Last updated 25-07-2026 by NA

Explanation

• Pakistan joined the United Nations on September 30, 1947.

Additional information:

• The name was coined by US President Franklin D. Roosevelt.
• Headquarters is located in New York, United States.
• Founded on October 24, 1945.
• It currently has 193 member states and 2 observer states.
• The official languages of the UN are Arabic, Chinese, English, French, Russian, and Spanish.

1. 1952-1953
2. 1968-1969
3. 1976-1977
4. 1983-1984
5. 1993-1994
6. 2003-2004
7. 2012-2013
8. 2025-2026

Last verified on 09-03-2026