Coromandel International Mechanical Engineer Interview Questions and Answers

SS 304 and SS 316 are both stainless steel alloys, but with different compositions and properties.

• SS 304 contains 18% chromium and 8% nickel, while SS 316 contains 16% chromium, 10% nickel, and 2% molybdenum.

• SS 316 is more corrosion-resistant than SS 304, especially in environments with chlorides or acids.

• SS 316 is more expensive than SS 304.

• SS 304 is commonly used in food processing equipment, while SS 316 is used in

API seal cooling plan is a system used to cool the mechanical seal of a pump or compressor to prevent overheating and failure.

• API stands for American Petroleum Institute, which sets standards for seal cooling plans in the oil and gas industry.

• The cooling plan typically involves circulating a cooling fluid, such as water or oil, through a jacket around the seal.

• The cooling fluid absorbs heat from the seal and carries it...read more

There are several types of gears used in the market.

• Spur gears

• Helical gears

• Bevel gears

• Worm gears

• Planetary gears

• Rack and pinion gears

• Internal gears

• Miter gears

• Spiral bevel gears

• Hypoid gears

There are numerous types of materials, including metals, polymers, ceramics, composites, and more.

• Metals: iron, aluminum, copper, etc.

• Polymers: plastics, rubber, etc.

• Ceramics: glass, porcelain, etc.

• Composites: fiberglass, carbon fiber, etc.

• Other: wood, concrete, etc.

There are several types of bolts, including hex bolts, carriage bolts, and lag bolts.

• Hex bolts have a hexagonal head and are commonly used in construction.

• Carriage bolts have a smooth, rounded head and are often used in woodworking.

• Lag bolts have a pointed tip and are used to attach heavy objects to wood or other materials.

• Other types of bolts include eye bolts, U-bolts, and J-bolts.

Valve types include gate, globe, ball, butterfly, and check valves. Pump types include centrifugal, positive displacement, and axial flow pumps.

• Valve types: gate, globe, ball, butterfly, check

• Pump types: centrifugal, positive displacement, axial flow

• Gate valves control flow by raising or lowering a gate

• Globe valves control flow by raising or lowering a plug

• Ball valves control flow with a rotating ball

• Butterfly valves c...read more

Types of gears include spur, helical, bevel, worm, and rack and pinion. Types of bearings include ball, roller, and sleeve bearings.

• Spur gears have straight teeth and are used for low-speed applications.

• Helical gears have angled teeth and are used for high-speed applications.

• Bevel gears have angled teeth and are used for changing the direction of power transmission.

• Worm gears have a screw-like thread and are used for h...read more

Analyzed thermal performance of parabolic solar collector for M.Tech project

• Researched various materials for collector construction

• Conducted experiments to measure heat transfer efficiency

• Analyzed data to optimize collector design

• Compared results with theoretical models

• Presented findings in a detailed report

Energy management of a plant involves optimizing energy usage to reduce costs and environmental impact.

• Implementing energy-efficient technologies and practices

• Monitoring energy consumption and identifying areas for improvement

• Utilizing renewable energy sources where possible

• Regular maintenance of equipment to ensure optimal performance

• Training staff on energy conservation practices

There are several types of gears used in the market.

• Spur gears

• Helical gears

• Bevel gears

• Worm gears

• Planetary gears

• Rack and pinion gears

• Internal gears

• Miter gears

• Spiral bevel gears

• Hypoid gears

There are numerous types of materials, including metals, polymers, ceramics, composites, and more.

• Metals: iron, aluminum, copper, etc.

• Polymers: plastics, rubber, etc.

• Ceramics: glass, porcelain, etc.

• Composites: fiberglass, carbon fiber, etc.

• Other: wood, concrete, etc.

There are several types of bolts, including hex bolts, carriage bolts, and lag bolts.

• Hex bolts have a hexagonal head and are commonly used in construction.

• Carriage bolts have a smooth, rounded head and are often used in woodworking.

• Lag bolts have a pointed tip and are used to attach heavy objects to wood or other materials.

• Other types of bolts include eye bolts, U-bolts, and J-bolts.