Explanation

• Shaft horsepower (SHP): It is the mechanical power delivered to the pump shaft by the motor or engine.
• It represents the input power to the pump, before losses occur inside the pump.

Last verified on 16-10-2026

Explanation

• Specific capacity of a well is the discharge of a well per unit of drawdown.
• It is calculated by dividing the well discharge by the drawdown.

Last verified on 16-10-2026

Explanation

• In a septic tank, anaerobic bacteria decompose organic matter in sewage in the absence of free oxygen.

Additional information:

• Anaerobic decomposition: These bacteria break down organic waste without requiring free oxygen.
• Sludge reduction: This process helps decompose accumulated organic solids and reduces the amount of sludge.
• Biogas production: Anaerobic decomposition can produce gases such as methane and carbon dioxide.

Last verified on 16-10-2026

Explanation

• Suppressed weir: A rectangular weir whose crest length spans the full width of the channel, so there is no lateral contraction of the flowing water.

Additional information:

• Contracted weir: The crest length is less than the channel width, allowing water to contract at the sides.
• Broad-crested weir: A weir with a relatively wide, flat crest over which water flows.

Last verified on 16-10-2026

Explanation

• Onion seeds have a relatively short storage life and lose viability quickly under unsuitable storage conditions.
• Onion seeds are sensitive to moisture and high temperatures. Cool, dry storage helps maintain their germination capacity.
• Properly dried onion seeds stored under suitable conditions can remain viable longer than seeds kept in warm, humid environments.

Last verified on 16-10-2026