Piramal Group Shift Engineer Interview Questions and Answers

Q1. What is chiller and compressor
Ans. 
A chiller is a machine that removes heat from a liquid via a vapor-compression or absorption refrigeration cycle. A compressor is a mechanical device that increases the pressure of a gas by reducing its volume.
• A chiller is used to cool down water or other fluids in industrial or commercial settings.

• There are two types of chillers: vapor-compression and absorption.

• Compressors are used in refrigeration systems to compres...read more
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Q2. How many types of pumps
Ans. 
There are several types of pumps used in various industries.
• Centrifugal pumps

• Positive displacement pumps

• Axial flow pumps

• Mixed flow pumps

• Jet pumps

• Submersible pumps

• Diaphragm pumps

• Gear pumps

• Peristaltic pumps

• Rotary lobe pumps

• Screw pumps

• Vane pumps
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Q3. In the pump parts deference between any two pumps
Ans. 
The pump parts can differ in terms of material, size, shape, and function.
• Different pumps may have different impellers, casings, shafts, bearings, and seals.

• The material used for the parts can vary depending on the type of fluid being pumped and the environment.

• The size and shape of the parts can also vary depending on the flow rate and pressure requirements.

• The function of the parts can differ based on the type of pum...read more
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Q4. Working principle of the solanoid Valve
Ans. 
Solenoid valve works on the principle of electromagnetism to control the flow of fluids or gases.
• It consists of a coil, plunger, and valve body

• When the coil is energized, it creates a magnetic field that pulls the plunger towards it

• This movement opens or closes the valve, allowing or blocking the flow of fluid or gas

• Used in various applications such as refrigeration, HVAC systems, and industrial automation
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Q1. TFF cassette material Column packing and unpacking Asymmetry Fronting Tailing Splitting What is Hetp
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Q2. TFF polarisation
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Q3. What is delta P
Ans. 
Delta P refers to the difference in pressure between two points in a system.
• Delta P is commonly used in fluid dynamics to measure pressure differences.

• It is calculated by subtracting the pressure at one point from the pressure at another point.

• Delta P is important in industries like manufacturing and HVAC for maintaining proper pressure levels.

• For example, in a piping system, delta P can indicate if there is a blockage
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Q4. Chromatography column
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Basic appti ques were asked

Q1. Basic knowledge about electrical engineering is must to clear it
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Q2. What is transformer types
Ans. 
Transformer types include step-up, step-down, isolation, autotransformer, and instrument transformer.
• Step-up transformer increases voltage while decreasing current

• Step-down transformer decreases voltage while increasing current

• Isolation transformer separates primary and secondary windings

• Autotransformer has a single winding with multiple taps for voltage adjustment

• Instrument transformer is used for measuring current or
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Q3. Motors & it's types
Ans. 
Motors are devices that convert electrical energy into mechanical energy. There are various types of motors.
• DC motors: used in appliances, toys, and automobiles

• AC motors: used in industrial machinery and household appliances

• Stepper motors: used in robotics and automation

• Servo motors: used in precision control applications

• Brushless motors: used in drones and electric vehicles
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Q1. About yourself and personal background
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Q1. About circuit breaker
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Q1. What is deviation?
Ans. 
Deviation refers to the act of departing from an established course or norm.
• Deviation can occur in various aspects such as behavior, performance, or results.

• It can be intentional or unintentional.

• For example, a deviation from standard operating procedures in a manufacturing plant can lead to quality issues.

• In project management, deviation from the planned timeline or budget can impact the overall success of the project
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Q2. What is change control?
Ans. 
Change control is a process used to ensure that changes to a system are implemented in a controlled and coordinated manner.
• Change control involves documenting, reviewing, approving, and implementing changes to a system or process.

• It helps prevent unauthorized changes and ensures that changes are properly evaluated for potential impacts.

• Examples of change control include software updates, equipment upgrades, and process
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