Gainwell CAT Service Engineer Interview Questions and Answers

Company taken an aptitude test after that interview

Q1. HR ask me a question, how work is the cylinder function, Ans- cylinder is working a two stock and four stock
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Q1. Interview on basis things on mechanical and electrical and hydraulic things
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Q1. Asking the troubleshooting of previous attended complaints
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Q1. Asking current company CTc and sent breakup salary
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Q1. Personal information
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Q2. My self introduction
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Q3. Engine tecnical
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Q1. Disel engine combustion process
Ans. 
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
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Q2. What is two & four stroke engine.
Ans. 
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
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Q3. What's is hydraulic component.
Ans. 
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.
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Q4. What is realy,and working principle
Ans. 
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
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Q5. Least count of all megerment.
Ans. 
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.
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Q1. Releted to technical about machine
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Q2. Technology about new model machine
Ans. 
The new model machine incorporates advanced technology for improved performance and efficiency.
• The new model machine features state-of-the-art sensors for real-time monitoring.

• It is equipped with a user-friendly interface for easy operation and troubleshooting.

• The machine utilizes machine learning algorithms for predictive maintenance.

• It has remote access capabilities for monitoring and control from anywhere.

• The new mo...read more
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Q1. Related to work
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Communication skill about the customer

About the machine troubleshooting

Q1. Every model hydra and new generation crane up to 23 ton
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