10+ Centrient Pharmaceuticals Utility Operator Interview Questions and Answers

High pressure problem in chiller compressor

• High pressure in chiller compressor can be caused by various factors such as dirty condenser coils, refrigerant leaks, or a malfunctioning expansion valve.

• Excessive high pressure can lead to compressor overheating, reduced cooling capacity, and potential damage to the chiller system.

• Regular maintenance and monitoring of the chiller system can help identify and resolve high pressure issues before they cause significant damage.

• Examples...read more

TR Chiller machine is a type of chiller used for cooling applications in various industries.

• TR Chiller machine is a refrigeration system that removes heat from a process or space.

• It uses a compressor, condenser, expansion valve, and evaporator to cool the fluid or air.

• TR stands for Ton of Refrigeration, which is a unit of cooling capacity.

• TR Chiller machines are commonly used in HVAC systems, industrial processes, and commercial buildings.

• They can be powered by electricity, n...read more

The same problem in a machine that occurs repeatedly.

• One common problem is overheating due to insufficient cooling.

• Another common problem is a faulty sensor causing inaccurate readings.

• A recurring issue could be a clogged filter leading to reduced efficiency.

• Frequent breakdowns may be caused by worn-out or damaged components.

• Inconsistent power supply can also be a recurring problem in machines.

Our company uses a shell and tube condenser.

• The condenser is designed to transfer heat from the steam to the cooling water.

• It consists of a bundle of tubes through which the steam flows and a shell surrounding the tubes through which the cooling water flows.

• The shell and tube condenser is commonly used in power plants and industrial processes.

• Our company's condenser is made of stainless steel for durability and corrosion resistance.

Priming in pump is the process of removing air from the pump and filling it with liquid to create suction and start the pumping action.

• Priming is necessary to ensure the pump is filled with liquid and there is no air trapped inside.

• It involves filling the pump casing and suction pipe with liquid before starting the pump.

• Priming can be done manually or automatically depending on the type of pump.

• Examples of priming methods include using a priming valve, a vacuum pump, or a foo...read more

The chiller gas leak test method involves pressurizing the chiller system with a gas and using a detector to identify any leaks.

• Pressurize the chiller system with a gas, such as nitrogen or helium.

• Use a gas detector to identify any leaks in the system.

• Inspect all connections, valves, and fittings for potential leaks.

• Perform a bubble test by applying a soapy solution to suspected leak areas and look for bubbles.

• Utilize an electronic leak detector for more accurate and sensitiv...read more

Cooling towers are classified into two types: open circuit and closed circuit.

• Open circuit cooling towers: Water is exposed to the atmosphere and cooled through evaporation.

• Closed circuit cooling towers: Water is cooled indirectly through a heat exchanger.

• Examples of cooling towers: Crossflow cooling tower, counterflow cooling tower, induced draft cooling tower, forced draft cooling tower.

A cooling tower problem refers to an issue or malfunction in the cooling system of a facility, which can lead to inefficient cooling or equipment failure.

• Cooling tower problems can include issues with water quality, such as scaling or fouling, which can reduce heat transfer efficiency.

• Mechanical problems like pump failures or fan malfunctions can also cause cooling tower problems.

• Inadequate maintenance or improper operation can contribute to cooling tower problems.

• Examples of...read more

Woking process SOP is a set of instructions that outlines the steps to be followed for safe and efficient operation of the Woking process.

• Woking process SOP includes safety procedures, equipment operation guidelines, and troubleshooting steps.

• It ensures that the process is carried out consistently and efficiently.

• Examples of Woking process SOPs include those for chemical manufacturing, food processing, and wastewater treatment.

• Regular review and updates of the SOP are necessa...read more