Explanation

• A hardcopy output device produces physical copies of data or information.
  • Printer converts digital documents into paper copies.
  • Examples: Plotter, Photocopier, Fax machine, Braille printer

Additional information:

Softcopy vs Hardcopy:

• Softcopy: Screen display, audio (Monitor, Speaker)
• Hardcopy: Physical form (Paper, Card, etc.)

Printers can be inkjet, laser, or dot-matrix.

Last verified on 09-03-2026

Explanation

• The phrase “they are eating” is grammatically incorrect in this context.
• It should be: “Most people don’t wash their hands before they eat.”

Last verified on 08-03-2026

Explanation

• Prophet Nuh (AS) lived for 950 years preaching to his people.
• His son drowned in the Great Flood because he refused to board the Ark.
• The story is mentioned in the Quran, Surah Hud (11:42–43).
• He is one of the five Ulu’l Azm prophets in Islam.
• His Ark carried believers and pairs of animals during the flood.

Last verified on 09-03-2026

Explanation

• Allama Iqbal (1877–1938) is the National Poet of Pakistan.
• Joined Muslim League: 1908 in London, 1922 in Indian subcontinent.
• Delivered Presidential Address at 25th All-India Muslim League session, Allahabad, 29 Dec 1930.

Additional information:

• Born: 9 November 1877, Sialkot
• Died: 21 April 1938, Lahore
• Burial: Tomb of Allama Iqbal, Lahore
• Known as “Mufakkir-e-Pakistan” (Thinker of Pakistan) and “Shair-e-Mashriq” (Poet of the East).

Last verified 09-03-2026

Explanation

• Sir Syed Ahmed Khan was born in 1817 in Delhi.
• He was died in 1898 and buried in Aligarh.
• He was an Islamic reformer and philosopher.
• Two nation theory first time introduced by Sir Syed Ahmed.
• He received his early education from his Maternal Grand Father.
• Mir Muttaql was the father of Sir Syed Ahmed Khan.

Last verified 09-03-2026

Explanation

• Car brakes are typically hydraulic systems, not pneumatic systems.

The examples of pneumatic systems:

• Spray gun: uses compressed air to atomize and spray paint or other materials.
• Bicycle pump: uses compressed air to inflate tires.
• Vacuum cleaner: uses compressed air to create suction and lift dust and debris.

Last verified on 09-03-2026

Explanation

• Pascal's Law states that the pressure applied to a fluid (liquid or gas) in a container is transmitted equally throughout the fluid and to the walls of the container, and that the pressure is the same in all directions at a given point in the fluid.
• This principle has numerous applications in engineering, physics, and everyday life.

Last verified on 09-03-2026

Explanation

• Reflex actions are rapid, automatic responses to stimuli that occur without the involvement of the brain.
• Instead, they are mediated by the spinal cord or peripheral nerves.

Last verified on 09-03-2026

Explanation

The structure of the brain is similar to the structure of a Walnut, with both having:

• A hard outer layer (cranium vs. shell)
• A wrinkled surface (brain's cerebral cortex vs. walnut's surface)
• A distinct left and right half (brain's hemispheres vs. walnut's halves)

Last verified on 09-03-2026

Explanation

• The nervous system is the body system that controls and coordinates the functions of all other organ systems.
• It allowing for integration and regulation of various bodily functions.
• It consists of the brain, spinal cord, nerves, and sensory organs.

Last verified on 09-03-2026