ITT Corp Product Design Engineer Interview Questions and Answers

Q1. What is the capacity of diesel and petrol
Ans. 
Diesel has higher energy density than petrol, resulting in better fuel efficiency.
• Diesel has a higher energy density than petrol, meaning it can provide more energy per unit volume.

• Petrol is more volatile and burns faster than diesel.

• The capacity of diesel and petrol tanks in vehicles can vary depending on the size of the vehicle and its fuel efficiency.

• For example, a typical car may have a petrol tank capacity of arou...read more
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Q2. Difference b/w petrol engine & diesel engine
Ans. 
Petrol engines use spark ignition, while diesel engines use compression ignition.
• Petrol engines use a spark plug to ignite the fuel-air mixture, while diesel engines rely on compression to ignite the fuel.

• Petrol engines are lighter and more responsive, while diesel engines are more fuel-efficient and have higher torque.

• Petrol engines are more common in cars and motorcycles, while diesel engines are often used in trucks
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Q3. What is meant by LNTD
Ans. 
LNTD stands for Logarithmic Mean Temperature Difference.
• LNTD is a term used in heat transfer calculations to determine the overall temperature difference between two fluids in a heat exchanger.

• It is calculated using the formula LNTD = (ΔT1 - ΔT2) / ln(ΔT1 / ΔT2), where ΔT1 and ΔT2 are the temperature differences at the two ends of the heat exchanger.

• LNTD is important in designing efficient heat exchangers to maximize h...read more
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Q1. Tell me about your self
Ans. 
I am a passionate and experienced Design Engineer with a strong background in mechanical engineering and a proven track record of successful projects.
• I have a Bachelor's degree in Mechanical Engineering from XYZ University.

• I have worked for 5 years in the design engineering field, specializing in product development and optimization.

• I am proficient in CAD software such as SolidWorks and AutoCAD, as well as FEA analysis...read more
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Q1. Salary details required
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Q2. Discuss about previous exp and technical que
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Q1. Explain various GD&T
Ans. 
Geometric Dimensioning and Tolerancing (GD&T) is a system for defining and communicating engineering tolerances.
• GD&T is used to specify the allowable variations in form, size, and orientation of features on a part.

• It uses symbols, such as concentricity, flatness, and perpendicularity, to communicate the desired tolerances.

• GD&T helps ensure that parts fit together properly and function as intended.

• Examples of GD&T symbo...read more
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Q2. Explain DFM, DFS, DFA
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DFM, DFS, and DFA stand for Design for Manufacturing, Design for Service, and Design for Assembly, respectively.
• DFM focuses on designing products that are easy and cost-effective to manufacture.

• DFS focuses on designing products that are easy to service and maintain.

• DFA focuses on designing products that are easy to assemble.

• Consideration of DFM, DFS, and DFA principles can lead to more efficient and cost-effective prod...read more
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Q1. Pneumatic Components, Working principal and application
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Q2. What are the types of fixtures?
Ans. 
Fixtures are devices used to hold and position workpieces during manufacturing or assembly processes.
• Jig fixtures are used to guide and control the movement of tools or workpieces.

• Clamp fixtures are used to secure workpieces in place during machining or assembly.

• Vise fixtures are used to hold workpieces firmly in position for milling or drilling operations.

• Indexing fixtures are used to rotate workpieces to specific ang...read more
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Q3. What are all the types of mylar?
Ans. 
Mylar is a type of polyester film used in various applications.
• Mylar is a brand name for a type of polyester film.

• It is known for its high tensile strength, durability, and heat resistance.

• Common types of Mylar include Mylar A, Mylar D, and Mylar M.

• Mylar A is a transparent film used for packaging, printing, and electrical insulation.

• Mylar D is a metallized film used for reflective purposes, such as in mirrors or emerge...read more
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Q1. What is your current position and expected ctc
Ans. 
I am currently working as a Senior Design Engineer and my expected CTC is confidential.
• Currently working as a Senior Design Engineer

• Expected CTC is confidential

• Cannot disclose the exact amount
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Questions covering various aspects

Q1. Design a mood 3 counter
Ans. 
A mood 3 counter is a device that tracks and displays the user's mood on a scale of 1-3.
• Design a simple interface with 3 buttons for the user to input their mood (happy, neutral, sad)

• Include a display screen to show the current mood level

• Implement a reset button to clear the mood counter

• Consider adding a visual indicator such as colored LEDs for each mood level
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Q2. What are the three states
Ans. 
The three states refer to the three fundamental states of matter: solid, liquid, and gas.
• Solid: particles are closely packed together and have a fixed shape and volume (e.g. ice)

• Liquid: particles are close together but can move past each other, taking the shape of their container (e.g. water)

• Gas: particles are far apart and move freely, filling the entire space of their container (e.g. air)
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Q1. Gd&t symbol, mechanical properties
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Q2. Tell me about yourself
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