Mechanical Contracting and Services Company Mechanical Engineer Interview Questions and Answers

Q1. What means of tyre size
Ans. 
Tyre size refers to the dimensions of a tire, including width, aspect ratio, and diameter.
• Tyre size is typically expressed as a series of numbers and letters on the sidewall of the tire.

• The first number represents the width of the tire in millimeters.

• The second number is the aspect ratio, which is the height of the tire's cross-section as a percentage of the width.

• The final number is the diameter of the wheel that the ...read more
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Q2. Diffrence between pan mixer and twin shaft mixer
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Pan mixer is a stationary mixer with a single shaft while twin shaft mixer has two horizontal shafts rotating in opposite directions.
• Pan mixer has a single shaft while twin shaft mixer has two horizontal shafts

• Twin shaft mixer provides better mixing efficiency and homogeneity compared to pan mixer

• Pan mixer is suitable for smaller batches while twin shaft mixer is used for larger production volumes
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Q1. What is the viscosity?
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Q1. Negotiable round
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Technical round and one by one person having questing and forward to answers

Q1. Regarding piping
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Q2. I have done piping also do then
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Q1. What about power plant
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Q1. Specifiacation of machinery
Ans. 
Specification of machinery refers to the detailed requirements and characteristics of a machine or equipment.
• Includes dimensions, materials, performance criteria, and safety features

• Should be clearly defined to ensure proper design and functionality

• Examples: maximum load capacity, operating temperature range, power consumption
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Q2. Schedule maintenance interval
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Q1. Personal question
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Q2. Highgest edication
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Q1. Process of site management
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Site management involves coordinating and overseeing all activities on a construction site to ensure projects are completed on time and within budget.
• Developing a detailed project plan outlining tasks, timelines, and resources

• Coordinating with subcontractors, suppliers, and other stakeholders

• Ensuring compliance with safety regulations and quality standards

• Managing project budget and expenses

• Monitoring progress and addr...read more
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Q2. How to join pipe
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Pipe joining can be done using various methods such as welding, soldering, or using mechanical fittings.
• Welding: involves melting the edges of the pipes and joining them together.

• Soldering: uses a filler material to join the pipes together.

• Mechanical fittings: includes couplings, unions, and compression fittings to connect pipes without welding or soldering.
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Q1. About strl erection
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Q2. About manpower handeling
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Q3. About codes and standards
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Q4. About raw material
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Q5. About contractor handling
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Q6. About hot work and height job executing
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Q7. About erection procedures of structure
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Q8. About safety precautions during hot job
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Q1. What are the Fire NOC conditions
Ans. 
Fire NOC conditions refer to the requirements set by the fire department for ensuring fire safety in a building or establishment.
• Fire NOC is required before starting any construction or occupancy of a building.

• The building must comply with fire safety regulations such as having fire extinguishers, smoke detectors, and fire alarms installed.

• Regular fire drills and training for occupants are necessary to ensure preparedn...read more
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Q2. Which one is more efficient for railways- 750V DC or 25 KV AC..and why?
Ans. 
25 KV AC is more efficient for railways due to lower energy losses over long distances.
• 25 KV AC is more efficient for long distance transmission as it experiences lower energy losses compared to 750V DC.

• 25 KV AC allows for higher speeds and heavier loads on the railway system.

• 25 KV AC is the standard voltage used in many modern railway systems around the world, such as in Europe and parts of Asia.

• 750V DC may be more su...read more
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Q3. Write code to reverse string without using string or inbuilt function
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Reverse a string without using string or inbuilt function
• Create an array of characters to store the string

• Use two pointers, one at the beginning and one at the end, swap characters until they meet

• Repeat until all characters are swapped
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