Eastern Coalfields Mechanical Maintenance Technician Interview Questions and Answers

Q1. What is your achievements in your previous plant
Add your answer
Q2. What are the critical scenario which you have deal in adverse conditions.
Add your answer

Crane maintenance PM & breakdown

Verbal reasoning logical reasoning spatial ability

Q1. Basic electrical knowledge maintenance engineer knowledge and power plant knowledge
Add your answer
Q2. Basic electrical engineer questions maintenance engineer questions and power plant questions
Add your answer
Q3. Transformers related questions Buchholz really etc
Add your answer
Q4. MCB contactor rectifier etc
Add your answer

Aptitude test b.e electronics level

Q1. Hydraulics related and electrical
Add your answer
Q2. Different between pump and motor
Ans. 
Pump is used to transfer fluids while motor is used to convert electrical energy into mechanical energy.
• Pump is used to move fluids from one place to another while motor is used to rotate machinery.

• Pump has an inlet and outlet while motor has a rotor and stator.

• Pump is used in fluid systems while motor is used in mechanical systems.

• Examples of pumps include centrifugal pumps, positive displacement pumps, and axial flow...read more
Answered by AI
Add your answer
Q3. Explain the series and parallel connections
Ans. 
Series and parallel connections are two types of electrical circuits used to connect components.
• In a series connection, components are connected end-to-end, so the current flows through each component in turn.

• In a parallel connection, components are connected side-by-side, so the current is divided among them.

• Series connections increase the total resistance and decrease the total current, while parallel connections dec...read more
Answered by AI
Add your answer

Q1. Explain the fuel system
Ans. 
The fuel system is responsible for delivering fuel to the engine for combustion.
• The fuel system includes the fuel tank, fuel pump, fuel filter, fuel injectors, and carburetor.

• The fuel pump draws fuel from the tank and sends it to the engine.

• The fuel filter removes impurities from the fuel before it reaches the engine.

• Fuel injectors spray fuel into the engine's combustion chamber, while a carburetor mixes fuel and air b...read more
Answered by AI
Add your answer
Q2. Machine is starting problem how is solved
Add your answer
Q3. Engine rpm is low and
Add your answer
Q4. Hydraulic cylinder operation slow
Ans. 
Possible causes of slow hydraulic cylinder operation
• Low hydraulic fluid level

• Clogged or dirty hydraulic filter

• Worn out piston seals

• Leaking hydraulic lines

• Faulty control valve

• Incorrectly adjusted relief valve

• Excessive load on the cylinder

• Improperly sized cylinder for the application
Answered by AI
Add your answer
Q5. Control valve internal leakages how is check
Ans. 
Control valve internal leakages can be checked through various methods.
• Performing a visual inspection of the valve and its components

• Using ultrasonic leak detection equipment

• Conducting a pressure drop test

• Performing a bubble test using a soap solution

• Checking the valve position indicator

• Analyzing the valve's performance data

• Regular maintenance and testing of the valve
Answered by AI
View 2 more answers
Q6. Breaking failure how is solved
Ans. 
Breaking failure can be solved by identifying the root cause and implementing corrective actions.
• Identify the root cause of the breaking failure

• Implement corrective actions such as repairing or replacing the broken parts

• Conduct regular maintenance and inspections to prevent future breaking failures

• Train employees on proper usage and maintenance of equipment

• Use high-quality materials and equipment to reduce the risk of
Answered by AI
Add your answer

Q1. Basic questions of experience
Add your answer

Q1. Basic questions of manpower handling and salary discussion
Add your answer

Q1. BELT joint, alignment, bearing replacement and inspection work
Add your answer
Q2. Crusher pm stackers cum reclaimer paddle FEEDER and any other pm work procedure
Add your answer

Q1. What is maintenance, preventive maintenance, break down maintenance
Ans. 
Maintenance is the process of keeping equipment in good condition. Preventive maintenance is scheduled maintenance to prevent breakdowns. Breakdown maintenance is repairing equipment after it has failed.
• Maintenance is the process of ensuring that equipment is in good working condition.

• Preventive maintenance is scheduled maintenance that is performed to prevent equipment breakdowns.

• Breakdown maintenance is the repair of...read more
Answered by AI
View 1 more answer

HR after call back from company Side