Avinash Group Senior Supervisor Interview Questions and Answers

A shunt relay in an ACB is used to provide protection against overcurrents by diverting excess current away from the main circuit.

• Shunt relay is connected in parallel with the main circuit of the ACB.

• It detects overcurrents and activates to divert the excess current through a shunt path.

• This helps in protecting the main circuit from damage due to overcurrents.

• Shunt relays are commonly used in Air Circuit Breakers (ACBs...read more

CoC in HVAC stands for Certificate of Conformance, which is a document certifying that a product meets specified requirements.

• CoC in HVAC is a Certificate of Conformance that ensures a product meets specific requirements.

• It is often required in HVAC projects to ensure quality and compliance.

• CoC may include details such as product specifications, testing results, and manufacturer information.

Biological oxygen demand (BOD) and Chemical oxygen demand (COD) are important parameters in wastewater treatment plants.

• Biological oxygen demand (BOD) is a measure of the amount of dissolved oxygen needed by aerobic biological organisms to break down organic material in water.

• Carbonaceous oxygen demand (COD) is a measure of the amount of oxygen required to oxidize all the organic and inorganic matter in water.

• BOD is a ...read more

A voltage monitoring relay is a device that monitors voltage levels and triggers an alarm or protective action if the voltage exceeds or falls below a set threshold.

• Monitors voltage levels in electrical systems

• Triggers alarm or protective action if voltage exceeds or falls below set threshold

• Used to protect equipment from damage due to voltage fluctuations

WTP plant works on the principle of physical and chemical processes to remove impurities from water.

• Water enters the plant and goes through processes like coagulation, flocculation, sedimentation, filtration, and disinfection.

• Coagulation involves adding chemicals to water to make impurities clump together.

• Flocculation helps in forming larger particles called floc for easier removal.

• Sedimentation allows the floc to sett...read more

I provide daily and monthly reports on project progress, issues, and key metrics to track performance.

• Daily reports include updates on tasks completed, challenges faced, and plans for the next day.

• Monthly reports summarize overall progress, budget status, and any potential risks or delays.

• Reports may also include key performance indicators (KPIs) such as project milestones achieved, budget variance, and resource utiliz...read more

I am looking for new challenges and opportunities for growth.

• Seeking new challenges and opportunities for personal and professional growth

• Want to expand my skill set and knowledge in a different environment

• Desire to work with a larger team and take on more responsibilities

• Looking for a company that aligns better with my long-term career goals

Gravity pressure can be calculated using the formula: P = ρgh

• Gravity pressure is the pressure exerted by a fluid due to gravity

• It is calculated using the formula P = ρgh, where P is pressure, ρ is density, g is acceleration due to gravity, and h is height

• The unit of gravity pressure is usually in Pascals (Pa) or pounds per square inch (psi)

PRV is used in plumbing line to regulate water pressure and prevent damage to pipes and fixtures.

• PRV stands for Pressure Reducing Valve.

• It reduces high water pressure to a safe and manageable level.

• High water pressure can cause damage to pipes, fixtures, and appliances.

• PRV also helps to conserve water by reducing the amount of water wasted due to high pressure.

• Examples of where PRV is used include residential homes, co

There are four types of sprinklers: upright, pendant, sidewall, and concealed.

• Upright sprinklers are installed in an upright position and are used for areas with high ceilings.

• Pendant sprinklers are installed in a hanging position and are used for areas with low ceilings.

• Sidewall sprinklers are installed on walls and are used for narrow spaces.

• Concealed sprinklers are installed above the ceiling and are hidden from vie

The standard height between WC Outlet centre to Inlet center is 6 inches.

• The standard height is 6 inches or 15.24 cm.

• This measurement is important for proper installation of toilets.

• It ensures that the toilet will function properly and be comfortable for the user.

• The measurement may vary slightly depending on the type of toilet being installed.

• It is important to follow manufacturer instructions for installation.

Pump head is the measure of the height that a pump can raise water against gravity.

• Pump head is calculated by adding the discharge head and suction head.

• Discharge head is the height to which water is pumped.

• Suction head is the height from the water level to the centerline of the pump.

• Friction loss in the piping system should also be considered.

• Pump head can be calculated using the following formula: Pump Head = Dischar

GI B & C Class pipes differ in thickness and weight.

• GI B Class pipes have a thickness of 2.9-3.2 mm and weight of 7.91-8.44 kg/m

• GI C Class pipes have a thickness of 3.2 mm and weight of 8.35 kg/m

• GI B Class pipes are commonly used for water supply and irrigation systems

• GI C Class pipes are commonly used for hand pumps and tube wells