Nagarjuna Construction Company Mechanical Maintenance Engineer Interview Questions and Answers

Q1. Specifiacation of machinery
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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. What is formula to calculate module in gears
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The formula to calculate module in gears is the ratio of pitch diameter to the number of teeth.
• Module = Pitch Diameter / Number of Teeth

• Module is a measure of the size of the teeth on a gear.

• It is commonly used in gear design and manufacturing to ensure proper meshing of gears.

• For example, if a gear has a pitch diameter of 40 mm and 20 teeth, the module would be 40 mm / 20 = 2 mm.
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Q2. Module=pitch circle dia M=D/T
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Module is the ratio of pitch circle diameter to the number of teeth in a gear.
• Module is a gear parameter that defines the size of the gear teeth.

• Pitch circle diameter is the diameter of the imaginary circle on which the gear teeth are located.

• The formula M=D/T calculates the module where D is the pitch circle diameter and T is the number of teeth.

• For example, if the pitch circle diameter is 100 mm and the number of tee
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Q3. What is module in gears
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Module in gears refers to the size of the gear teeth and is used to determine the gear ratio and dimensions of the gear.
• Module is the ratio of the pitch diameter to the number of teeth in the gear.

• It is used to calculate the dimensions of the gear teeth, such as tooth thickness and depth.

• Different gear modules are used for different applications, with larger modules for heavier loads and smaller modules for higher spee...read more
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Q4. What is the pitch circle in gears
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The pitch circle in gears is an imaginary circle that passes through the point where the teeth of two gears mesh together.
• The pitch circle is used to determine the gear ratio between two gears.

• It is the circle on which the pitch diameter of the gear is measured.

• The pitch circle diameter is used in calculations for gear design and analysis.

• The pitch circle is important for ensuring proper meshing of gears and smooth ope...read more
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60 questions in 60 min

Q1. What is the definition of Lathe?
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A lathe is a machine tool that rotates a workpiece about an axis of rotation to perform various operations such as cutting, sanding, drilling, knurling, or deformation.
• Lathe is used to shape and cut materials such as wood, metal, and plastic.

• It rotates the workpiece on its axis and a cutting tool is applied to the workpiece to remove material.

• Lathe can perform various operations such as turning, facing, drilling, borin...read more
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Q2. What is the Boiler Drum? & how it's work
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Boiler drum is a cylindrical container which is used to store water and steam produced in a boiler.
• It is a vital component of a boiler system.

• It is usually made of steel and is located at the top of the boiler.

• It acts as a reservoir of water/steam and helps to separate steam from water.

• It also helps to regulate the pressure and temperature of the steam.

• The level of water in the drum is maintained by a feedwater control...read more
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Q1. Basics mecanical engineering questions
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Q1. About my past experiences and myself.
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Q1. What is your salary expectations.
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Work relevance discussion with others participants.

Q1. Basic questions in company
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Q2. All types engine are working
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Q3. How is maintenance repairing automobil engine
Ans. 
Maintenance repairs automobile engines by diagnosing issues, replacing faulty parts, and conducting regular maintenance checks.
• Diagnosing engine issues through visual inspection and diagnostic tools

• Replacing faulty parts such as spark plugs, filters, and belts

• Conducting regular maintenance checks to prevent future issues

• Testing the engine after repairs to ensure proper functioning
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Q4. Which types of problem face in work
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Q5. Resolved the problem face in company & workshop
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Q6. Which types of working company and dealer
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Maintenance Supervisors typically work for manufacturing companies, property management companies, and equipment dealers.
• Manufacturing companies

• Property management companies

• Equipment dealers
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