Interview Questions and Answers

Pharmaceutical companies use various types of machines for different purposes.

• Mixing and blending machines for preparing medicines

• Tablet compression machines for making tablets

• Capsule filling machines for filling capsules

• Liquid filling machines for filling liquid medicines

• Labeling machines for labeling medicines

• Packaging machines for packaging medicines

• Sterilization machines for sterilizing equipment and medicines

• Drying machines for drying medicines

• Milling machines for grindi...read more

Pumps and boilers are essential equipment in various industries. Pumps are used to transfer fluids, while boilers generate steam.

• Pumps are devices that move fluids by mechanical action.

• There are different types of pumps, such as centrifugal pumps, reciprocating pumps, and rotary pumps.

• Centrifugal pumps are commonly used in water supply systems and HVAC applications.

• Reciprocating pumps are used in high-pressure applications, like oil and gas industry.

• Rotary pumps are used for ...read more

SF6 gas is used in circuit breakers due to its excellent electrical insulation properties and high dielectric strength.

• SF6 gas has high dielectric strength, making it an effective insulator in high voltage applications.

• It has excellent arc-quenching properties, allowing it to quickly extinguish electrical arcs.

• SF6 gas is chemically stable and non-toxic, making it safe for use in circuit breakers.

• It has a high thermal conductivity, which helps in dissipating heat generated dur...read more

AHU stands for Air Handling Unit. It is a device used to regulate and circulate air as part of a heating, ventilation, and air conditioning (HVAC) system.

• AHU is responsible for conditioning and distributing air within a building.

• It consists of components like fans, filters, heating and cooling coils, dampers, and controls.

• The fans in AHU draw in outside air, filter it, and then distribute it to various areas of the building.

• The filters in AHU remove dust, pollen, and other pa...read more

Substations use various protections to ensure safety and reliability of power supply.

• Overcurrent protection

• Ground fault protection

• Transformer protection

• Surge protection

• Circuit breaker

• Relay protection

• Isolation switches

• Lightning arresters

• Fire protection

• Security measures