Interview Questions and Answers

There are multiple methods used to forecast population.

• Demographic analysis

• Cohort-component method

• Time series analysis

• Mathematical models

• Survival analysis

• Migration analysis

The design period for pumping machinery and ESR refers to the intended lifespan or duration of operation for the equipment.

• The design period is typically determined based on factors such as expected usage, maintenance requirements, and technological advancements.

• It is important to consider the design period when selecting materials, components, and manufacturing processes to ensure durability and reliability.

• For example, in the design of a water pump for a municipal water sup...read more

Peak factors are used in distribution design to account for peak loads and ensure safe and efficient operation.

• Peak factors are used to determine the maximum load that a distribution system can handle.

• They take into consideration factors such as diversity of loads, power factor, and future growth.

• For example, a peak factor of 1.5 means that the system should be designed to handle 50% more than the average load.

• Peak factors vary depending on the type of distribution system and...read more

The design period for distribution system and headwork refers to the expected lifespan or duration for which the system is designed to function effectively.

• The design period is determined based on factors such as expected growth, technological advancements, and maintenance requirements.

• It is important to consider the long-term needs and goals of the distribution system and headwork when determining the design period.

• For example, if the distribution system is expected to serve...read more

The minimum residual pressure in SVS refers to the lowest pressure that remains in the system after it has been depressurized.

• The minimum residual pressure is important to ensure the system is properly depressurized and safe for maintenance or repair.

• It is typically measured in units of pressure, such as psi or bar.

• The specific value of the minimum residual pressure can vary depending on the design and requirements of the SVS system.

• For example, in a compressed air system, th...read more

Components in a water supply scheme include pipes, pumps, valves, storage tanks, and treatment facilities.

• Pipes: Used to transport water from the source to the distribution network.

• Pumps: Provide the necessary pressure to move water through the system.

• Valves: Control the flow and direction of water within the scheme.

• Storage tanks: Store water for peak demand periods or emergencies.

• Treatment facilities: Purify and disinfect water to make it safe for consumption.