Subros Diploma Engineer Trainee - DET Interview Questions and Answers

Q1. What Is Engine?
Ans. 
An engine is a machine that converts energy into mechanical force or motion.
• Engines are used in various applications such as automobiles, aircraft, and power plants.

• They typically work by burning fuel to generate heat, which is then converted into mechanical energy.

• There are different types of engines, including internal combustion engines, steam engines, and electric engines.

• Examples of engines include car engines, je
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Q2. What Is Silencer?
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A silencer is a device that reduces the noise produced by a machine or engine.
• Silencers are commonly used in automobiles to reduce the noise produced by the exhaust system.

• They work by using a series of chambers and baffles to absorb and dissipate sound waves.

• Silencers are also used in firearms to reduce the noise of the gunshot.

• They are typically made of metal and can be attached to the end of the barrel.

• Silencers are...read more
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Q3. What is Thermostat
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A thermostat is a device that regulates temperature by turning heating or cooling systems on or off.
• Thermostat is used to maintain a desired temperature in a room or a building.

• It works by sensing the temperature and then turning the heating or cooling system on or off accordingly.

• Thermostats can be manual or programmable, with the latter allowing users to set different temperatures for different times of the day.

• Examp...read more
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Q4. At what temperature thermostat valve opens?
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The temperature at which a thermostat valve opens depends on the specific application and type of valve.
• Thermostat valves can open at different temperatures depending on the application.

• The opening temperature can range from below freezing to several hundred degrees Fahrenheit.

• The type of valve, such as a wax pellet or bimetallic strip valve, can also affect the opening temperature.

• For example, a thermostat valve in a ...read more
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Q5. Give different types of casting
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Different types of casting include sand casting, investment casting, die casting, and continuous casting.
• Sand casting involves pouring molten metal into a sand mold

• Investment casting uses a wax pattern that is coated in ceramic and then melted out to create a mold

• Die casting involves injecting molten metal into a mold under high pressure

• Continuous casting is used for producing long lengths of metal with a constant cros
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Q6. What Is Casting?
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Casting is a manufacturing process in which a liquid material is poured into a mold and allowed to solidify.
• Casting is used to create complex shapes that would be difficult or impossible to make using other methods.

• The liquid material used for casting can be metal, plastic, or even concrete.

• The mold used for casting can be made of various materials, including sand, plaster, and ceramic.

• After the material has solidified...read more
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Q7. In your family who does what(a General information about your family )
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Q1. Introduction Self short
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Q2. Why should we hire you
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Easy to moderate questions are given on general aptitude part.

Q1. What about yourself
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Q2. Tell about your college life
Ans. 
My college life was a mix of academics, extracurricular activities, and making lifelong friendships.
• Studied engineering with a focus on mechanical engineering

• Participated in various college events and competitions

• Was a member of the college robotics club

• Made close friends who I still keep in touch with
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Q3. Are you comfortable at any shift?
Ans. 
Yes, I am comfortable working at any shift as per the company's requirements.
• I am flexible and adaptable to different shift schedules.

• I understand the importance of teamwork and meeting project deadlines, which may require working different shifts.

• I am willing to adjust my personal schedule to accommodate the needs of the company.

• I have previous experience working in shifts and have successfully managed my time and res...read more
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Q1. What is your favourite subject?
Ans. 
My favorite subject is Mechanical Engineering because I enjoy learning about how machines work and designing new technologies.
• I enjoy studying topics like thermodynamics, fluid mechanics, and materials science.

• I like working on projects that involve designing and building machines or systems.

• I find the principles of mechanical engineering fascinating and enjoy applying them to real-world problems.
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Q2. Working of micrometre
Ans. 
Micrometre is a precision measuring instrument used to measure small distances accurately.
• Micrometre consists of a stationary anvil and a movable spindle.

• The object to be measured is placed between the anvil and spindle, and the spindle is turned to make contact with the object.

• The measurement is read from the scale on the sleeve and thimble of the micrometre.

• Micrometres are commonly used in engineering and manufacturi...read more
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Q3. What is degree of freedom
Ans. 
Degree of freedom refers to the number of independent variables or parameters that can vary in a system.
• Degree of freedom is the number of variables that can be changed independently without affecting the overall system.

• In mechanics, a rigid body in a plane has 3 degrees of freedom - two translations and one rotation.

• In thermodynamics, a simple compressible substance has 2 degrees of freedom - temperature and pressure.

• ...read more
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Q4. Types of forging , rolling
Ans. 
Forging and rolling are two common metalworking processes used to shape metal into desired forms.
• Forging involves shaping metal by applying compressive forces, typically using a hammer or press.

• Types of forging include open-die forging, closed-die forging, and impression-die forging.

• Rolling involves passing metal between rollers to reduce thickness or change shape.

• Types of rolling include hot rolling, cold rolling, and
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Q5. Tell me about manufacturing process
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Manufacturing process involves converting raw materials into finished products through various steps and techniques.
• Manufacturing process starts with the design of the product

• Raw materials are sourced and inspected for quality

• Materials are processed through various methods like casting, molding, machining, etc.

• Quality control checks are performed at different stages

• Finished products are packaged and distributed to cust
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