SPSC 25 YEARS PAST PAPERS 2001 TO 2026
SPSC 5 years Past Papers Click here
چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
انسانی جسم میں سب سے زیادہ وافر معدنیات کون سی ہے؟
- Potassium
- Calcium
- Sodium
- Magnesium
- None of the above
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
Calcium is the most abundant mineral in the human body,
calcium makes up 1.5 to 2% of the total body weight.
Approximately 1,200 g of calcium is present in the body of an adult human
more than 99% of that amount is found in bones.
***
ND11-12-2022
- Subdued
- Hoarse
- Strident
- Discordant
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
Raucous means بیٹھی ہوئی
Subdued means دب گیا
ایلومینیم کا زمین کی تشکیل میں ____ ٪ حصہ ہے۔
- 8.23%
- 12.23%
- 6.23%
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
Aluminum makes up approximately 8.23% of the Earth's crust by weight.This making it the third most abundant element after oxygen and silicon.It is primarily found in the form of bauxite ore.
میں تقریبا 1500 جزیرے ہیں؟ ______
- Indonesia
- Malaysia
- Finland
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
Finland is known for its extensive archipelago, with approximately 1500 islands.
This makes it one of the countries with the most islands in the world.
نومبر 1945 میں مندرجہ ذیل میں سے کون سی تنظیم قائم کی گئی تھی؟
- NATO
- WHO
- UNESCO
- ILO
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
| United Nations Educational Scientific and Cultural Organization (UNESCO) |
| Founded | 16 November 1945 |
| Headquarters | Paris, France |
| Founded in | London, UK |
| Members | 193 |
بلیک فاریسٹ کس ملک میں واقع ہے؟
- China
- Germany
- France
- Britain
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
The Black Forest (Schwarzwald) is a mountainous region in southwestern Germany.This is known for its dense forests and scenic beauty.It is famous for cuckoo clocks, spa towns, and being the inspiration for many fairy tales.
جوہری ری ایکٹر میں ماڈریٹر کا مقصد ______ ہے؟
- Slow down fast neutrons to increase the probability of capture by uranium
- Shield the reactor operator from dangerous radiation
- Provide neutrons for the fission process
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
Moderators (like water or graphite) reduce the speed of fast-moving neutrons.It making them more likely to be absorbed by uranium nuclei.This increases the efficiency of the fission reaction, sustaining a controlled chain reaction in the reactor.
اگر تاریک معاملہ موجود نہیں تھا تو یہ امکان ہے کہ ______؟
- The universe would expand forever
- The night sky would be brighter
- The universe would begin contracting soon
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
Dark matter provides additional gravitational pull, helping galaxies stay bound and influencing cosmic expansion.Without dark matter, gravitational attraction might be weaker, and the universe could slow down its expansion and potentially start contracting.
- 4 J
- 20000 J
- 40000 J
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
To find the stored energy, we can use the formula:
Energy (E) = 0.5 × Capacitance (C) × Voltage² (V²)
Given:
C = 20 F
V = 200 V
E = 0.5 × 20 F × (200 V)²
= 0.5 × 20 × 40,000
= 400,000 J
- Must be transverse
- Has motionless points that are closer than half a wavelength
- Can be constructed from two similar waves travelling in opposite directions
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
A standing wave is formed by the interference of two waves with the same frequency and amplitude moving in opposite directions.This results in nodes (motionless points) and antinodes (points of maximum displacement) at fixed positions.
