10+ Simpliaxis Interview Questions and Answers

Answering questions related to Maintenance Engineer interview.

• Types of boilers include fire tube, water tube, and electric boilers.

• Chilling plant capacity can be calculated by multiplying the flow rate by the temperature difference.

• Colour coding in industry is used to identify pipes, wires, and equipment based on their function or contents.

• Schedule maintenance is planned maintenance that is performed at regular intervals, while preventive maintenance is maintenance that is pe...read more

Calculating cooling tower TR, boiler efficiency, and types and capacity of chilling plant compressors.

• Cooling tower TR can be calculated using the formula: TR = (500 x GPM x Delta T)/12000

• Boiler efficiency can be calculated using the formula: Efficiency = (Output/Input) x 100

• Types of compressors include reciprocating, rotary screw, centrifugal, and scroll.

• Capacity of compressors is measured in tons of refrigeration (TR) or in cubic feet per minute (CFM).

• Chilling plant compres...read more

The glass thickness of msgl reactor varies depending on the manufacturer and model.

• The glass thickness can range from 5mm to 20mm.

• It is important to consult the manufacturer's specifications for the specific reactor in question.

• Factors such as pressure and temperature can also affect the required glass thickness.

• Regular inspections and maintenance should be conducted to ensure the integrity of the glass lining.

Pumps are devices used to move fluids from one place to another. There are different types of pumps based on their working principle.

• Centrifugal pumps

• Positive displacement pumps

• Axial flow pumps

• Mixed flow pumps

• Jet pumps

A mechanical seal is a device that helps to prevent leakage between two moving parts in a machine.

• There are several types of mechanical seals, including pusher, non-pusher, cartridge, and split seals.

• Pusher seals use springs to maintain contact between the seal faces.

• Non-pusher seals use the pressure of the fluid being sealed to maintain contact between the seal faces.

• Cartridge seals are pre-assembled and can be easily replaced without disassembling the equipment.

• Split seals ...read more

MSGL Reactor, ANFD, Atmospheric and Vacuum Distillation, Herbicide and Intermediate Product, Chlorination are all related to chemical production processes.

• MSGL Reactor is a type of reactor used in chemical production.

• ANFD stands for Agitated Nutsche Filter Dryer, which is used for filtration and drying of chemical products.

• Atmospheric Distillation is a process used to separate crude oil into different components based on their boiling points.

• Vacuum Distillation is a similar p...read more

A permit system is a formal process for granting permission to perform a specific task or activity.

• Permit systems are commonly used in industries such as construction, mining, and manufacturing to ensure safety and compliance with regulations.

• Permits may be required for activities such as hot work, confined space entry, or working at heights.

• The permit system typically involves a written document outlining the work to be done, potential hazards, safety precautions, and author...read more

LMTD is calculated using the formula (ΔT1 - ΔT2) / ln(ΔT1 / ΔT2)

• Calculate the temperature differences between the hot and cold fluids at the inlet and outlet of the heat exchanger

• Subtract the temperature difference of the cold fluid from the temperature difference of the hot fluid

• Take the natural logarithm of the ratio of the two temperature differences

• Divide the difference in temperature by the natural logarithm value to get the Log Mean Temperature Difference (LMTD)

The previous process involved a manual system for data entry and tracking.

• Data was entered manually into spreadsheets

• Tracking of progress was done through email communication

• There was no automated system for generating reports

• The process was time-consuming and prone to errors

Cooling tower calculation involves determining the heat load, water flow rate, and cooling tower efficiency.

• Calculate heat load by determining the difference in temperature between the hot water entering and the cooled water exiting the tower.

• Determine water flow rate based on the heat load and the specific heat capacity of water.

• Calculate cooling tower efficiency by comparing the actual heat rejected to the maximum possible heat rejection.

• Consider factors such as ambient tem...read more

Cooling tower TR calculation involves determining the amount of heat that can be removed by the cooling tower.

• Determine the flow rate of water through the cooling tower

• Measure the temperature of the water entering and leaving the cooling tower

• Calculate the difference in temperature between the water entering and leaving the cooling tower

• Use the formula TR = (500 x flow rate x delta T) / 12,000 to calculate the cooling tower tonnage

• Ensure that the calculated TR matches the req...read more

Boiler is used to generate steam while thermopack uses thermal energy to heat a fluid.

• Boiler produces high-pressure steam while thermopack heats a fluid at low pressure.

• Boiler is used in power plants and industrial processes while thermopack is used in small-scale industries.

• Boiler requires more maintenance and has a higher risk of explosion compared to thermopack.

• Boiler uses water as a working fluid while thermopack uses oil or other fluids.

• Boiler has a higher efficiency in ...read more

Boiler and thermopac are both heating systems, but differ in their working fluid and application.

• Boiler uses water as the working fluid to produce steam, while thermopac uses a heat transfer fluid like oil or gas.

• Boilers are commonly used in power plants and industrial processes, while thermopacs are used in industries like textiles, chemicals, and food processing.

• Boilers are typically larger and more complex than thermopacs, requiring more maintenance and safety precautions....read more

The maximum possible vacuum is determined by the pressure limit of the vacuum pump and the vapor pressure of the fluid being evacuated.

• The maximum vacuum achievable is limited by the pressure limit of the vacuum pump.

• The vapor pressure of the fluid being evacuated also limits the maximum vacuum.

• Vacuum levels are typically measured in torr or millibar units.

• The highest vacuum ever achieved in a laboratory is around 10^-13 torr.

• Vacuum technology is used in a variety of industri...read more