UST Mechanical Engg. Design Interview Questions and Answers

GD&T symbols are used to specify geometric tolerances on engineering drawings.

• GD&T stands for Geometric Dimensioning and Tolerancing

• Symbols are used to specify tolerances for form, orientation, location, and profile

• Examples of symbols include concentricity, perpendicularity, and flatness

• GD&T ensures that parts are manufactured to the correct dimensions and fit together properly

A manufacturing drawing template typically includes details such as dimensions, tolerances, materials, and finishing.

• Title block with part name, drawing number, and revision

• List of materials and their specifications

• Detailed views with dimensions and tolerances

• Bill of materials with part numbers and quantities

• Notes section for additional information

• Finishing requirements such as surface roughness and coatings

• Reference t

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

Design is the process of creating solutions to problems through the use of creativity and technical knowledge.

• Design involves identifying a problem or need

• It requires creativity to come up with innovative solutions

• Technical knowledge is used to implement the design

• Design can be seen in various fields such as product design, graphic design, and industrial design