Quaker Houghton Senior Service Engineer Interview Questions, Process, and Tips

PH is a measure of acidity or alkalinity of a solution. It stands for 'potential of hydrogen'.

• PH scale ranges from 0 to 14, with 7 being neutral.

• A solution with a PH less than 7 is acidic, while a solution with a PH greater than 7 is alkaline.

• PH is measured using a PH meter or litmus paper.

• PH plays an important role in various fields such as chemistry, biology, and environmental science.

Bacteria are single-celled microorganisms that can be found in various environments and have diverse shapes and sizes.

• Bacteria are prokaryotic organisms, lacking a nucleus and other membrane-bound organelles.

• They can be classified into different shapes such as cocci (spherical), bacilli (rod-shaped), and spirilla (spiral-shaped).

• Bacteria can be beneficial, such as those involved in digestion or nitrogen fixation, or ha...read more

To increase the pH level, add a base or decrease the amount of acid in the solution.

• Add a base such as sodium hydroxide or potassium hydroxide

• Decrease the amount of acid by diluting the solution with water

• Use a pH meter to monitor the pH level and adjust accordingly

Hardness is the measure of a material's resistance to permanent deformation.

• It is measured using various scales such as Mohs, Brinell, Vickers, etc.

• Hardness can be affected by factors such as temperature, pressure, and composition.

• Materials with high hardness include diamond, tungsten carbide, and hardened steel.

• Hardness is important in industries such as manufacturing, construction, and mining.

Bacteria issues can be solved by implementing proper sanitation practices and using disinfectants.

• Regular cleaning and disinfecting of surfaces and equipment

• Proper hand hygiene practices

• Using appropriate disinfectants for specific types of bacteria

• Implementing a comprehensive infection control program

• Regular monitoring and testing for bacteria levels

• Proper storage and handling of food and other perishable items

Fungal issues refer to various problems caused by fungi, including infections, allergies, and damage to crops and buildings.

• Fungal infections can affect different parts of the body, such as the skin, nails, and respiratory system.

• Common fungal infections include athlete's foot, ringworm, and yeast infections.

• Fungal allergies can cause symptoms like sneezing, itching, and respiratory issues.

• Fungi can also damage crops, ...read more

Itching issues in fluid can be solved by identifying the root cause and implementing appropriate measures.

• Conduct a thorough analysis of the fluid composition and identify any potential irritants.

• Check for any contamination or impurities in the fluid.

• Implement filtration or purification processes to remove any irritants or impurities.

• Consider adding anti-itching agents to the fluid.

• Regularly monitor and maintain the fl

Lubricant oil is used to reduce friction and wear between moving parts in a machine.

• Prevents metal-to-metal contact

• Reduces heat generated by friction

• Helps to extend the life of the machine

• Improves efficiency and performance

• Examples: motor oil in car engine, grease in bearings

Cutting fluid is used to cool and lubricate cutting tools during machining operations.

• Reduces friction and heat generated during cutting

• Prevents tool wear and damage

• Improves surface finish and dimensional accuracy

• Types include water-based, oil-based, and synthetic

• Examples include mineral oil, soluble oil, and semi-synthetic

Water soluble oil is a type of cutting fluid used in metalworking that can be mixed with water to form an emulsion.

• Water soluble oil is a lubricant used in metalworking to reduce friction and heat during cutting operations.

• It can be mixed with water to form an emulsion that can be easily applied to the workpiece.

• Water soluble oil is preferred over traditional oil-based lubricants because it is easier to clean and does ...read more