Tata Hitachi Construction Machinery Service Engineer Interview Questions and Answers

A hydraulic circuit is a system that uses fluid to transmit power and control the movement of mechanical components.

• A hydraulic circuit typically consists of a power source, such as a hydraulic pump, which generates fluid flow and pressure.

• The fluid is then directed through various components, such as valves, cylinders, and motors, to perform specific tasks.

• Valves control the flow and direction of the fluid, allowing i...read more

The diesel engine combustion process involves the ignition of fuel injected into the combustion chamber by compressed air.

• Diesel fuel is injected into the combustion chamber at high pressure

• The air in the combustion chamber is compressed by the piston, leading to high temperatures

• The high temperature air ignites the fuel, leading to combustion and the generation of power

• The combustion process in diesel engines is more

A two-stroke engine completes a power cycle in two strokes of the piston, while a four-stroke engine completes it in four strokes.

• Two-stroke engines have a simpler design with fewer moving parts compared to four-stroke engines.

• Two-stroke engines typically produce more power for their size but are less fuel-efficient and emit more pollution.

• Four-stroke engines are more common in cars, motorcycles, and larger machinery d...read more

A hydraulic component is a device that utilizes fluid power to perform mechanical tasks.

• Hydraulic components use liquid to transmit power.

• Common examples include hydraulic cylinders, pumps, motors, valves, and hoses.

• They are often used in heavy machinery, construction equipment, and industrial applications.

Realy is a type of relay used in electrical systems to control high power devices with low power signals.

• Relays are switches that open and close circuits electromechanically

• Realy is a type of relay specifically designed for high power applications

• Working principle involves an electromagnet that moves an armature to open or close the circuit

• Commonly used in industrial automation, automotive, and HVAC systems

Least count is the smallest change in the measured quantity that can be detected by the measuring instrument.

• Least count is determined by the smallest division on the scale of the measuring instrument.

• It is important for accurate measurements and precision in engineering.

• For example, a ruler with millimeter divisions has a least count of 1 mm.

• A vernier caliper with 0.1 mm divisions has a least count of 0.1 mm.

I have a strong understanding of the responsibilities and technical requirements of a Service Engineer.

• I have experience in troubleshooting and repairing technical issues.

• I am familiar with various tools and equipment used in the field.

• I have knowledge of preventive maintenance procedures.

• I understand the importance of customer service and communication skills in this role.

I was responsible for providing technical support and troubleshooting for customers' equipment.

• Provided technical support to customers over the phone and via email

• Troubleshooted equipment issues and resolved them in a timely manner

• Performed regular maintenance and repairs on equipment

• Trained customers on how to use the equipment properly

• Collaborated with other team members to improve customer satisfaction

In my previous office, my day to day responsibilities included troubleshooting technical issues, providing customer support, and conducting equipment maintenance.

• Troubleshooting technical issues with equipment

• Providing customer support via phone and email

• Conducting routine maintenance on equipment

• Collaborating with other team members to solve complex problems