Explanation

• The shortcut key to print a document is Ctrl + P.

Additional Information:

• Hyphen (-) is used to select a range for printing a document.
  
• By default, the documents are printed in portrait-oriented mode.
• Ctrl + A = select all
• Ctrl + B = Bold
• Ctrl + I = Italic
• Ctrl + P = Print
  
• Ctrl + Y = Redo
• Ctrl + S = Save

Last verified on 26-05-2026

Explanation

• The first nuclear power plant was established in Karachi, 
• With the help of Canada 
• KANUPP is Pakistan's first nuclear power plant,
• Inaugurated on November 28, 1972,
• Total gross capacity of 137 MW.

Additional information

• K2 & K3 with the help of China 
  
• K2  started on 21 May 2021 and has an 1100 MW capacity.
• K3 is expected to start in 2022.

Last updated 18-07-2026 by NA

Explanation

• A single page of a PowerPoint presentation is called a Slide.
• A slide is a single screen/page that contains text, images, charts, videos, or other presentation elements.
• A collection of slides forms a PowerPoint presentation.
• PowerPoint is a presentation software developed by Microsoft.
• Slides can be displayed using Slide Show mode.
• The default PowerPoint file extension is .pptx.

Last verified on 07-08-2026

Explanation

• DOCX is the newer version of DOC, the original official Microsoft Word file format. 
• Microsoft Word 97 - 2003 Document extension (.doc).
• Microsoft Word 2007 to till date Document extension (.docx).

Additional information:

• .xls extension of Excel.
• .ppt extension of PowerPoint.
• .txt extension of Text files.
• .pdf extension of Portable Document Format.

Last verified on 15-02-2026

Explanation

• Powerpnt.exe is the executable file responsible for starting Microsoft PowerPoint.
• The .exe extension indicates an executable program file in Windows.
• Powerpnt.exe is associated with launching Microsoft PowerPoint.

Additional information:

• Winword.exe → Microsoft Word
• Excel.exe → Microsoft Excel

Last verified on 07-08-2026

Explanation

• In MS Word, Ctrl + J is used to justify text.
• Justified text is evenly aligned on both left and right margins.
• It is commonly used in books, newspapers, and formal documents.

Additional information:

• Ctrl + L → Left align
• Ctrl + E → Center align
• Ctrl + R → Right align

Last verified 29-05-2026

Explanation

• The shortcut key for Undo (last action reverse) is Ctrl + Z in most computer systems.
• It is used to cancel the last mistake or action.

Additional information:

• Ctrl + P = Print
• Ctrl + Y = Redo
• Ctrl + S = Save
• Ctrl + C = Copy command
• Ctrl + V = Paste
• Ctrl + C = Copy
• Ctrl + X = Cut
• Ctrl + Y = Redo

Last verified on 10-06-2026

Explanation

• Europe is the only continent without a desert.
• It has a temperate climate with sufficient rainfall.

Additional information:

• Divided by the Ural Mountains
• Second-smallest continent
• Covers 2% of Earth’s surface
• Area: 10.18 million km²

Last verified on 16-01-2026

Explanation

• CPU stands for Central Processing Unit.
• It is the main part of a computer that processes all instructions.
• It is considered the brain of the computer system.
• It performs all calculations and decision-making tasks.
• It controls the operations of all hardware and software.
• It is located on the motherboard.

Last verified on 10-06-2026

Explanation

The F4 key is commonly used to repeat the last action in programs like Microsoft Word and Excel.

For example, if you format text or perform a specific action, pressing F4 will repeat it.

Last updated question by NA on 07 May 2026