10+ Istrides Technologies Interview Questions and Answers

Piston and its rings play a crucial role in the functioning of 2 and 3 wheeler engines.

• Piston converts the energy generated by fuel combustion into mechanical energy.

• It moves up and down in the cylinder, creating a vacuum that draws in fuel and air mixture.

• Rings prevent the fuel and air mixture from escaping the combustion chamber.

• They also prevent oil from entering the combustion chamber and reduce friction between the piston and cylinder wall.

• In 2 wheelers, the piston and r...read more

Cast iron, s.g. iron, IKA, and malleable cast iron are different types of iron alloys used in various applications.

• Cast iron is a brittle alloy with high carbon content used in engine blocks and pipes.

• S.G. iron or ductile iron is a strong and ductile alloy used in gears and crankshafts.

• IKA or austempered ductile iron is a heat-treated alloy with high strength and wear resistance used in gears and bearings.

• Malleable cast iron is a heat-treated alloy with good ductility and tou...read more

Hard chrome plating is a process of electroplating a layer of chromium onto a metal surface to improve its wear resistance and durability.

• Hard chrome plating is commonly used in industrial applications such as aerospace, automotive, and hydraulic industries.

• The hardness of hard chrome plating can range from 65 to 72 on the Rockwell C scale.

• The thickness of the chrome layer can vary depending on the application, but typically ranges from 0.0002 to 0.010 inches.

• Hard chrome plat...read more

Hard water contains high levels of minerals, while soft water has low mineral content.

• Hard water contains high levels of minerals such as calcium and magnesium

• Soft water has low mineral content and is often treated to remove minerals

• Hard water can cause mineral buildup in pipes and appliances

• Soft water is better for washing clothes and dishes as it produces more lather

• Examples of hard water sources include well water and some municipal water supplies

Inspection and quality control are processes used to ensure that products or services meet certain standards and specifications.

• Inspection involves examining a product or service to ensure that it meets certain standards and specifications.

• Quality control involves monitoring and controlling the production process to ensure that products or services meet certain standards and specifications.

• Inspection and quality control are important for ensuring customer satisfaction and pre...read more

ID chamfering and OD chamfering are processes of creating beveled edges on the inside and outside diameter of a cylindrical object.

• ID chamfering is done on the inside diameter of a cylindrical object to create a beveled edge.

• OD chamfering is done on the outside diameter of a cylindrical object to create a beveled edge.

• These processes are commonly used in manufacturing to improve the functionality and safety of parts.

• Examples of parts that may require chamfering include bolts,...read more

A melting furnace is a device used to melt metals or other materials at high temperatures.

• Melting furnaces are commonly used in foundries and metalworking industries.

• They can be powered by electricity, gas, or oil.

• Some common types of melting furnaces include cupolas, induction furnaces, and arc furnaces.

• The temperature in a melting furnace can reach up to 3,000 degrees Fahrenheit.

• The molten metal or material can then be poured into molds to create various shapes and products...read more

Heat treatment is a process of heating and cooling metals to alter their physical and mechanical properties.

• It involves heating the metal to a specific temperature and holding it there for a certain amount of time

• The metal is then cooled at a specific rate to achieve the desired properties

• Heat treatment can improve the strength, hardness, toughness, and ductility of metals

• Examples of heat treatment processes include annealing, quenching, tempering, and case hardening

Turning and boring are machining processes used to create cylindrical shapes in materials.

• Turning involves rotating a workpiece while a cutting tool removes material to create a cylindrical shape.

• Boring is a similar process, but the cutting tool is moved in a linear motion to enlarge an existing hole or create a precise cylindrical shape.

• Both processes are commonly used in manufacturing to create parts for machines and other products.

• Examples of products that may require turn...read more

Double disc grinding is a process of grinding two parallel surfaces simultaneously with the help of two grinding wheels.

• It is used for high precision grinding of flat and parallel surfaces.

• The process involves feeding the workpiece between two grinding wheels rotating in opposite directions.

• The wheels are made of abrasive material and remove material from both sides of the workpiece.

• It is commonly used in the automotive industry for grinding engine components like crankshafts...read more

Preventive maintenance is a proactive approach to maintenance that involves regular inspections and repairs to prevent equipment failure.

• Regular inspections and maintenance are performed to prevent equipment failure

• It is a proactive approach to maintenance

• It helps to reduce downtime and repair costs

• Examples include changing oil in a car, cleaning air filters in HVAC systems, and replacing worn parts before they fail

Predictive maintenance is a technique that uses data analysis to predict when equipment failure is likely to occur.

• It involves monitoring equipment using sensors and collecting data

• The data is analyzed using machine learning algorithms to identify patterns and predict when maintenance is needed

• This helps to prevent unexpected downtime and reduce maintenance costs

• Examples include predicting when a machine will need a new part or when a vehicle needs an oil change