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Cummins Service Engineer Interview Questions and Answers

Updated 30 May 2024

Q1. why does the railways generator engine die black smoke

Ans.

The railways generator engine may emit black smoke due to issues with fuel, air intake, or combustion.

  • Possible reasons for black smoke include incorrect fuel-to-air ratio, clogged air filters, or faulty injectors

  • Incomplete combustion can also lead to black smoke emissions

  • Regular maintenance and proper tuning can help prevent black smoke issues

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Q2. What engine attended saying in model

Ans.

The question is asking about the engine specifications of a specific model.

  • Identify the specific model being referred to

  • Provide details about the engine specifications of that model

  • Include any unique features or upgrades of the engine

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Q3. How types of Cummins engine

Ans.

Cummins engines are available in various types including diesel, natural gas, and hybrid options.

  • Cummins diesel engines are commonly used in heavy-duty trucks and construction equipment

  • Cummins natural gas engines are popular for use in buses and other transportation vehicles

  • Cummins offers hybrid engines that combine diesel and electric power for increased efficiency

  • Other types of Cummins engines include marine engines and power generation engines

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Q4. How types of thermostat

Ans.

Thermostats can be categorized into mechanical, electronic, programmable, and smart thermostats.

  • Mechanical thermostats use a bimetallic strip to control temperature.

  • Electronic thermostats use electronic sensors to detect temperature changes.

  • Programmable thermostats allow users to set schedules for heating and cooling.

  • Smart thermostats can be controlled remotely via smartphone apps and may have features like learning algorithms.

  • Examples: Nest Learning Thermostat, Ecobee SmartT...read more

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Q5. What is cooling system

Ans.

Cooling system is a mechanism used to remove heat from a space or substance to maintain a lower temperature.

  • Cooling systems can be found in various applications such as air conditioning units, refrigerators, and computer systems.

  • They typically involve the circulation of a coolant or refrigerant to absorb and transfer heat away from the desired area.

  • Cooling systems can be either air-cooled or liquid-cooled, depending on the specific application and requirements.

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Q6. How types of stock

Ans.

There are two main types of stock: common stock and preferred stock.

  • Common stock represents ownership in a company and typically comes with voting rights.

  • Preferred stock usually does not have voting rights but has a higher claim on assets and earnings.

  • Stock can also be classified based on market capitalization (small-cap, mid-cap, large-cap) or sector (technology, healthcare, finance).

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Interview Process at Cummins Service Engineer

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