Hindustan Construction Company Mechanical Engineer Interview Questions and Answers

Q1. About Crusher Maintenance
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Q1. How to problems solve for M/C’s
Ans. 
To problem solve for M/C's, one must identify the issue, gather data, analyze the problem, develop solutions, and implement them.
• Identify the issue by observing and testing the machine

• Gather data by collecting information about the problem and the machine

• Analyze the problem by breaking it down into smaller parts and determining the root cause

• Develop solutions by brainstorming and evaluating options

• Implement the chosen ...read more
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Q2. How to service machine parts
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Machine parts can be serviced by following a systematic approach that includes inspection, cleaning, repair, and replacement.
• Inspect the machine parts to identify any signs of wear and tear or damage

• Clean the parts thoroughly using appropriate cleaning agents and tools

• Repair any damaged parts using welding, brazing, or other techniques

• Replace any parts that are beyond repair or have exceeded their useful life

• Follow the...read more
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Q1. What is the mechanism?
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The mechanism refers to the physical or mechanical system that performs a specific function or task.
• Mechanisms are often made up of various components such as gears, levers, pulleys, and linkages.

• They are designed to convert input forces and motion into desired output forces and motion.

• Examples include a car engine, a door lock, a bicycle chain, and a robotic arm.
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Q2. What is the structure of an assembly?
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An assembly is a collection of parts or components put together to form a complete structure or machine.
• An assembly typically consists of multiple parts or components that are designed to fit together in a specific way.

• Each part in an assembly has a specific function and contributes to the overall functionality of the structure.

• Assemblies can range from simple structures like a chair to complex machines like a car or a...read more
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120 questions in 120 minutes. 30 questions from English,30 questions from your stream,30 basic aptitude,30 current affairs type question

Q1. Tell me about 4 stroke diesel or petrol engine?
Ans. 
A 4 stroke engine is an internal combustion engine that completes 4 strokes in one cycle.
• The four strokes are intake, compression, combustion, and exhaust.

• In the intake stroke, the fuel-air mixture is drawn into the cylinder.

• In the compression stroke, the mixture is compressed to increase its temperature and pressure.

• In the combustion stroke, the mixture is ignited and the resulting explosion pushes the piston down.

• In ...read more
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Q2. What is laser beam welding?
Ans. 
Laser beam welding is a process of joining two metal pieces using a laser beam.
• Laser beam welding is a non-contact process.

• It uses a high-energy laser beam to melt and fuse the metal pieces together.

• It is commonly used in the automotive, aerospace, and electronics industries.

• It produces a narrow and deep weld with minimal distortion.

• Examples include welding of car body parts, aircraft engine components, and electronic
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Q1. What is pascals law, what is entropy
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Pascal's law states that pressure applied to a fluid is transmitted equally in all directions. Entropy is a measure of disorder or randomness in a system.
• Pascal's law is important in hydraulic systems, where pressure is used to transmit force.

• Entropy is a thermodynamic property that increases with the degree of disorder in a system.

• Entropy can be used to predict the direction of chemical reactions and the efficiency of
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Q1. No question for this company
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Q2. Interview complete so I am deside questions
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