Greet Technologies Interview Questions and Answers

Thermodynamics, stress and strain determination, manufacturing processes, CAD software proficiency, IC engine operation, Otto cycle explanation

• Basic principles of thermodynamics involve energy transfer and conversion, entropy, and the laws of thermodynamics

• Stress in a material is determined by dividing the applied force by the cross-sectional area, while strain is the ratio of the change in length to the original length

• Types of manufacturing processes include casting, machini...read more

The longest river in the world is the Nile River.

• The Nile River is located in northeastern Africa.

• It flows through multiple countries including Egypt, Sudan, South Sudan, and Ethiopia.

• The Nile River has two main tributaries, the White Nile and the Blue Nile.

• It is approximately 6,650 kilometers (4,130 miles) long.

The only body part that is fully grown from birth is the eye.

• The eye is the only body part that is fully developed at birth and does not grow in size as we age.

• Other body parts such as the brain, lungs, and heart continue to grow and develop after birth.

• The size of the eye remains relatively constant throughout our lifetime.

• This is why babies are born with fully functional eyesight.

A car's wheel and axle system is a simple machine that allows the car to move efficiently.

• The wheel and axle system consists of a wheel (the round part) attached to an axle (the rod that goes through the center of the wheel).

• When the axle rotates, it causes the wheel to turn, allowing the car to move forward or backward.

• The wheel and axle system reduces friction and makes it easier for the car to move.

• An example of a wheel and axle system in a car is the wheels attached to th...read more

The 4 main components of material science are structure, properties, processing, and performance.

• Structure: The arrangement of atoms and molecules in a material.

• Properties: The characteristics of a material, such as strength, hardness, and conductivity.

• Processing: The methods used to shape and form materials, like casting, forging, and machining.

• Performance: How a material behaves under specific conditions, including its durability and reliability.

Main parts of an IC engine include cylinder, piston, crankshaft, connecting rod, spark plug, and intake/exhaust valves.

• Cylinder: Houses the piston and combustion process

• Piston: Moves up and down in the cylinder to create power

• Crankshaft: Converts linear motion of the piston into rotational motion

• Connecting rod: Connects the piston to the crankshaft

• Spark plug: Ignites the air-fuel mixture in the cylinder

• Intake/exhaust valves: Control the flow of air-fuel mixture in and exhaust...read more

The cam used in IC engine is a rotating or sliding piece in a machinery that imparts reciprocating motion to another part.

• Cam is used to convert rotary motion into reciprocating motion in an IC engine.

• It controls the opening and closing of valves in the engine.

• Examples of cams in IC engines include camshafts and cam followers.

A centrifugal pump works by converting mechanical energy from a motor into kinetic energy in a fluid through the rotation of an impeller.

• Centrifugal pump uses an impeller to rotate and create a centrifugal force to push the fluid outward.

• The fluid enters the pump through the center of the impeller and is accelerated by the rotating blades.

• The kinetic energy of the fluid increases as it moves radially outward, creating pressure that forces the fluid out through the pump outlet...read more