Vividh Technologies Interview Questions and Answers

A pump is used to move fluids, while a compressor is used to increase the pressure of gases.

• Pump is used for fluids, compressor is used for gases

• Pump moves fluids from one place to another, compressor increases the pressure of gases

• Pump operates at lower pressures, compressor operates at higher pressures

• Examples: Water pump, fuel pump, air compressor

Reciprocating pumps are used in high head applications due to their ability to generate high pressure.

• Reciprocating pumps have a piston or plunger that moves back and forth to create pressure.

• They are capable of generating high discharge pressures, making them suitable for high head applications.

• The reciprocating action allows for better control and regulation of flow rate.

• They are commonly used in industries such as oil and gas, chemical processing, and water treatment.

• Examp...read more

Petrol and diesel have different densities.

• Petrol has a lower density than diesel.

• The density of petrol is around 0.71 to 0.77 grams per cubic centimeter.

• The density of diesel is around 0.82 to 0.85 grams per cubic centimeter.

• Density is a measure of mass per unit volume.

Centrifugal pumps are named so because they use centrifugal force to generate pressure and move fluid.

• Centrifugal pumps work by converting rotational kinetic energy into hydrodynamic energy.

• The pump's impeller spins rapidly, creating a centrifugal force that pushes the fluid towards the outer edges of the impeller.

• This centrifugal force increases the fluid's velocity and pressure, allowing it to be discharged through the pump's outlet.

• Centrifugal pumps are commonly used in va...read more

Pumps are used for water to facilitate its movement from one place to another.

• Pumps are used to extract water from wells, rivers, or other sources for various purposes like irrigation, drinking water supply, or firefighting.

• They are also used in industries to transfer water for cooling systems, manufacturing processes, or wastewater treatment.

• Pumps are essential in construction projects for dewatering excavations or transferring water to higher elevations.

• In households, pumps...read more