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

• The ozone layer protects the Earth from the sun.
• It is a part of the atmosphere that absorbs most of the harmful ultraviolet light from the sun.
• It sits in the stratosphere.
• It is about 9 to 18 miles above the Earth.
• It stops dangerous UV rays from hurting living things.

Last updated by NS on 14-8-2026

Explanation

• Plastic formwork: Highly flexible and smooth, making it the best choice for casting complex, intricate ornamental designs.

Additional information:

• Steel formwork: Rigid, heavy, and best for large, flat, repetitive concrete structures.
• Timber formwork: Used for basic, traditional shapes but difficult to carve into fine decorative details.
• Plywood formwork: Creates smooth, flat surfaces but cannot easily form intricate 3D architectural patterns.

Explanation

• The ARC command is used to draw an arc in AutoCAD.
• It is available under the Draw menu.
• Arc can be created using different methods and parameters.
• It is commonly used in 2D drafting.

Explanation

• EXTRUDE converts a 2D closed object into a 3D solid or surface.
• It extends the object along the Z-axis.
• It is commonly used to create 3D models from 2D profiles.
• For example, a 2D circle can be extruded to create a 3D cylinder.

Explanation

• The alias of the Object Snap command in AutoCAD is OS .
• Typing OS and pressing Enter opens the Drafting Settings dialog box to manage your running object snaps.

Explanation

Joint venture: Two or more companies form a temporary partnership to pool resources and complete a specific job together.

Additional information

• Subcontracting: One main contractor hires another independent company to do a small part of their project
• Tendering: The process where companies submit competitive price offers (bids) to win a construction contract.
• Negotiation: Direct business discussions between an owner and a contractor to agree on project costs and terms without open bidding.

Explanation

• DPC stands for Damp Proof Course.
• It is a water-resistant layer in a building.
• It prevents moisture from rising through walls.
• It is usually provided near plinth level.

Explanation

• Catch drain: Built high up on the hill slope to intercept rainwater before it reaches the road.

Additional information 

• Side drain: Located directly at the edge of the pavement to collect water from the road surface
• Cross drain: Structures like culverts that carry water across and underneath the width of the road.
• Valley drain: Channels used to drain low points where two sloping terrains intersect.

Explanation

• Dedicated tracks: Metrobus (Bus Rapid Transit) systems run on their own separate lanes, allowing them to bypass regular road traffic.
• Time savings: This separation results in higher speeds and predictable schedules, significantly shortening commute times for passengers.