Arista Networks Interview Questions and Answers

Questions related to stress-strain curve, modulus, elasticity, strain, hardness, and toughness.

• Stress-strain curve shows the relationship between stress and strain in a material.

• Young's modulus measures the stiffness of a material under tension or compression.

• Bulk modulus measures the resistance of a material to uniform compression.

• Elasticity is the ability of a material to return to its original shape after deformation.

• Strain is the measure of deformation in a material and i...read more

Gears are mechanical components that transmit power and motion between rotating shafts. There are various types of gears and gear trains used in different applications.

• Types of gears include spur, helical, bevel, worm, rack and pinion, and planetary gears.

• Gear trains are used to transmit power and motion between two or more gears. Examples include simple, compound, reverted, epicyclic, and differential gear trains.

• A gearbox is a mechanical device that uses gears to transmit p...read more

Sensors and actuators are essential components in engineering. Pneumatics is a branch of engineering that deals with gas or air-powered systems.

• Sensors are devices that detect and measure physical properties such as temperature, pressure, and light. Examples include thermocouples, pressure sensors, and photoelectric sensors.

• Actuators are devices that convert energy into motion. Examples include motors, solenoids, and hydraulic cylinders.

• Pneumatics is a branch of engineering t...read more

Capillary action is the ability of a liquid to flow in narrow spaces without the assistance of, or even in opposition to, external forces like gravity.

• Capillary action occurs due to the combination of adhesive forces between the liquid and the surface it is in contact with, and cohesive forces between the liquid molecules.

• Surface tension is the tendency of a liquid surface to minimize its surface area, caused by the cohesive forces between the liquid molecules.

• Wetting is the ...read more

Crowning of pulleys is the process of shaping the pulley's surface to a slight convex curve. Belt drives have advantages over gear drives.

• Crowning of pulleys helps in maintaining proper belt alignment and prevents belt slippage.

• It also helps in distributing the load evenly across the belt.

• Belt drives are quieter, smoother, and require less maintenance than gear drives.

• They also allow for more flexibility in terms of distance between shafts and can absorb shock and vibration.

• H...read more

Work is the amount of energy transferred when a force is applied over a distance. Power is the rate at which work is done.

• Work is the product of force and distance

• Power is the rate at which work is done

• Energy is the capacity to do work

• Weight is the force exerted on an object due to gravity

• Mass is the amount of matter in an object

• Unit of weight is Newtons (N)