Megha Engineering & Infrastructures Mechanic Interview Questions, Process, and Tips

Gears are mechanical devices that transmit motion and power between rotating shafts. There are various types of gears including spur, helical, bevel, and worm gears.

• Gears are mechanical components with teeth that mesh with each other to transmit motion and power.

• Spur gears have straight teeth and are the most common type of gear.

• Helical gears have angled teeth for smoother and quieter operation.

• Bevel gears have cone-sh...read more

A centrifugal pump is a mechanical device that uses rotating impellers to increase the pressure of a fluid.

• Uses rotating impellers to increase fluid pressure

• Commonly used in water treatment plants, HVAC systems, and oil refineries

• Works based on the principle of centrifugal force

• Converts mechanical energy into fluid energy

Stress is the force applied to a material, while strain is the resulting deformation or change in shape.

• Stress is the force applied to a material per unit area.

• Strain is the measure of deformation or change in shape of a material.

• Stress and strain are related by the material's modulus of elasticity.

• Example: When a rubber band is stretched, stress is applied to it causing strain in the form of elongation.

• Example: A meta...read more

A stress and strain diagram is a graphical representation of the relationship between stress and strain in a material.

• It shows how a material deforms under different levels of stress.

• The diagram typically consists of a linear elastic region, a yield point, and a plastic deformation region.

• The slope of the linear elastic region is the material's Young's modulus.

• The area under the stress-strain curve represents the mater...read more