Quest Global Lead Mechanical Engineer Interview Questions, Process, and Tips

A four-stroke engine works by completing four separate strokes - intake, compression, power, and exhaust - to generate power.

• Intake stroke: Air-fuel mixture is drawn into the cylinder through the intake valve.

• Compression stroke: The piston compresses the air-fuel mixture to increase its pressure and temperature.

• Power stroke: The spark plug ignites the compressed mixture, causing an explosion that drives the piston down...read more

Turbochargers are exhaust-driven while superchargers are belt-driven to increase engine power.

• Turbochargers use exhaust gases to spin a turbine which compresses air into the engine, while superchargers are driven by a belt connected to the engine's crankshaft.

• Turbochargers are more efficient as they utilize waste energy from the exhaust, while superchargers can provide instant power at lower RPMs.

• Turbochargers are typi...read more

An oil skid is a compact unit used for the storage, filtration, and transfer of oil in industrial applications.

• Oil skids are commonly used in industries such as oil and gas, power generation, and manufacturing.

• They typically include components such as pumps, filters, valves, and control systems.

• Oil skids are designed to be portable and easy to install, allowing for quick setup and operation.

• They help in maintaining the...read more

P&ID stands for Piping and Instrumentation Diagram, a detailed diagram that shows the piping and instrumentation of a process flow.

• P&ID is a detailed diagram that shows the piping, equipment, instrumentation, and controls of a process flow.

• It uses standardized symbols to represent components like valves, instruments, and pipelines.

• P&IDs are used in the design, construction, and maintenance of industrial processes.

• They ...read more