Explanation

Factors Affecting Water Demand:

1. Cost of water
2. Quality of water
3. Weather/climate
4. Population size
5. Standard of living

Last verified on 04-08-2026

Explanation

• Bottom Layer: Sludge
• Middle Layer: Liquid sewage/effluent
• Top Layer: Scum
• Main Processes: Sedimentation, Digestion, Separation
• Common Septic Tank Layers: 3 (Scum, Liquid, Sludge)

Last verified on 04-08-2026

Explanation

• The suitable width-to-length ratio for a seismic resisting building is 1:2.
• Regular and simple building shapes perform better during earthquakes.
• Excessively long buildings may develop greater torsional forces.
• Proper proportion improves stability and reduces earthquake damage.
• Seismic design focuses on strength, stiffness, and regularity.

Last verified on 04-08-2026

Explanation

• RPM stands for Rotation per Minute.
• It measures the rotational speed of machines and engines.
• One RPM means one complete rotation in one minute.
• It is commonly used for motors, fans, turbines, and vehicle engines.
• Higher RPM indicates faster rotation.

Last verified on 04-08-2026

Explanation

• Theodolite is the most precise instrument for measuring horizontal and vertical angles.
• It is widely used in surveying and engineering projects.
• It provides accurate angular measurements for construction and mapping.
• It consists of a telescope mounted on a horizontal and vertical axis.
• It is used in triangulation, alignment, and setting out works.

Last verified on 04-08-2026