SPSC 25 years Past Papers 2001 to 2025

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SPSC 25 years Past Papers 2001 to 2025

Q411: A mobile phone sends and receives messages through _____?

ایک موبائل فون _____ کے ذریعے پیغامات بھیجتا ہے اور وصول کرتا ہے؟

Sound waves

Microwaves

U/V waves

Radio waves

Explanation

Mobile phones use radio frequency (RF) waves to communicate with cell towers and other devices.

These radio waves are part of the electromagnetic spectrum.

They are specifically designed for wireless communication.

Q412: Red colour of the blood is due to ______?

خون کا سرخ رنگ ______ کی وجہ سے ہے؟

Haemoglobin

Myoglobin

Thyroglobin

None of these

Explanation

Human blood is red because hemoglobin.

It is carried in the blood and functions to transport oxygen.

It is iron-rich and red in color.

Octopuses and horseshoe crabs have blue blood.

This is because the protein transporting oxygen in their blood, hemocyanin, is actually blue.

Q413: 'Loquacious' means ____?

Rational

Taciturn

Spirited

Talkative

Explanation

'Loquacious' means " بولنے والا

"Talkative" or "chatty" means بولنے والا

Q414: The Synonym of Admonish is?

Abdicate

Warn

Cajole

None of these

Explanation

Admonish means نصیحت

Warn means انتباہ

Q415: The Battle of Safeen (Saffin) was fought in 37 A.H. between Hazrat Ali (RA) and _______?

سیفین (سیفن) کی لڑائی 37 اے ایچ میں حضرت علی (آر اے) اور _______ کے مابین لڑی گئی؟

Hazrat Ayesha (RA)

Hazrat Muawia (RA)

Hazrat Abdullah bin Zubair (RA)

None of these

Explanation

The Battle of Siffin took place in 657 CE (37 AH).

It was fought between Caliph Ali ibn Abi Talib and Mu'awiya ibn Abi Sufyan, the governor of Syria.

Q416: Bair-e-Rooma was ______?

بئیری روما کیا تھا؟

A mosque in Room

A famous Inn in Madina

A sweet drinking water well

None of these

Explanation

Bair-e-Rooma, it also known as Bi'r Ruma.
It was a well in Medina, Saudi Arabia.
It that was known for its sweet and fresh water.
It was a popular source of water for the people of Medina, including the Prophet Muhammad (peace be upon him) and his companions.

Q417: What is the Opposite of "Mighty"?

Weak

Tough

Forceful

None of the above

Explanation

Mighty طاقتور

Weak کمزور

Q418: What is the Synonym of "Acrimonious"?

Bitter

Provocative

Cheap

Volatile

Explanation

Acrimonious means تکلیف دہ

Bitter means تلخ

Q419: Over-damping results in _____?

میں زیادہ سے زیادہ نمٹنے کے نتائج؟ _____

Slower return to equilibrium

Faster return to equilibrium

Equilibrium is never achieved

Unrhythmic to equilibrium

Explanation

Over-damping occurs when damping is strong enough to prevent oscillations, causing the system to return to equilibrium slowly without oscillating.

This is commonly observed in systems like heavy doors with hydraulic closers, which close slowly without bouncing.

Q420: The Antonym of Abridge is?

Easy

Shorten

Extend

None of these

Explanation

Abridge means خلاصہ کرنا ۔ مختصر کرنا

Extend means توسیع

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