Tube Investments of India Mechanical Engineer Interview Questions and Answers

A diesel generator works by converting diesel fuel into mechanical energy which is then converted into electrical energy.

• Diesel fuel is injected into the combustion chamber where it ignites and creates high pressure gases that push the piston down, creating mechanical energy.

• The mechanical energy is then converted into electrical energy through the use of an alternator.

• The alternator uses a magnetic field and a conduct...read more

A diesel engine works by compressing air in the cylinder, which heats up and ignites the fuel injected into the cylinder.

• Air is drawn into the cylinder and compressed by the piston

• The compressed air heats up and ignites the fuel injected into the cylinder

• The explosion pushes the piston down, which turns the crankshaft and powers the engine

• Diesel engines are more efficient than gasoline engines because they compress the...read more

A train doesn't need a differential because its wheels are fixed to the same axle and rotate at the same speed.

• Train wheels are fixed to the same axle

• Wheels rotate at the same speed

• Differential is used in vehicles with wheels that rotate at different speeds

• Differential allows for smooth turning

Petrol engines have lower compression ratios compared to diesel engines.

• Petrol engines have lower compression ratios to prevent knocking or detonation.

• Diesel engines have higher compression ratios to ignite the fuel without spark plugs.

• Higher compression ratios in diesel engines result in better fuel efficiency and torque.

• Petrol engines require lower compression ratios to accommodate the lower octane rating of petrol f...read more

The percentage of carbon presence in cast iron varies from 2.1% to 6.67% depending on the type of cast iron.

• Cast iron is classified into four types based on its carbon content: white, gray, ductile, and malleable.

• White cast iron has the highest carbon content, ranging from 2.1% to 6.67%.

• Gray cast iron has a lower carbon content, ranging from 2.5% to 4%.

• Ductile cast iron has a carbon content of 3.2% to 4.1%.

• Malleable ca...read more

Addendum is the height of the tooth above the pitch circle in a gear.

• Addendum is the distance between the pitch circle and the top of the gear tooth.

• It is an important parameter in gear design as it affects the strength and durability of the gear.

• The addendum can be calculated using the formula addendum = module or diametral pitch.

• For example, in a gear with a module of 2mm, the addendum would be 2mm.

• Addendum is the op...read more

The least count of vernier calipers is the smallest measurement that can be accurately read on the scale.

• The least count is determined by the number of divisions on the main scale and the vernier scale.

• It is calculated by dividing the smallest division on the main scale by the number of divisions on the vernier scale.

• For example, if the smallest division on the main scale is 0.1 mm and the vernier scale has 10 division

I work for a leading engineering firm specializing in designing and manufacturing industrial machinery.

• We have a team of experienced mechanical engineers who work on various projects

• Our company focuses on innovation and cutting-edge technology in our designs

• We have successfully completed projects for clients in the automotive and aerospace industries

I come from a close-knit family with a strong emphasis on education and hard work.

• My parents are both engineers, so I grew up with a passion for problem-solving and innovation.

• I have two siblings, one of whom is also pursuing a career in engineering.

• Family gatherings often involve discussions about new technologies and projects we are working on.

• My family has always been supportive of my academic and career pursuits.

I am a passionate mechanical engineer with a strong background in designing and implementing innovative solutions.

• Graduated with a degree in Mechanical Engineering from XYZ University

• Completed internships at ABC Company and gained hands-on experience in CAD software

• Led a team project to design and build a prototype for a new cooling system

• Continuously learning and staying updated on the latest industry trends and techn

I am joining this company because of its reputation for innovation and commitment to employee growth.

• Opportunity to work on cutting-edge projects

• Strong focus on professional development

• Positive company culture and values

• Potential for career advancement

• Desire to contribute to a successful team

I have a strong background in mechanical engineering with hands-on experience in designing and implementing innovative solutions.

• Extensive knowledge in mechanical engineering principles and practices

• Proven track record of successfully completing projects on time and within budget

• Strong problem-solving skills and ability to think creatively

• Experience in using CAD software for design and analysis

• Excellent communication a...read more