Nyei Design Services Interview Questions and Answers

The engine is typically divided into four parts: the intake, compression, combustion, and exhaust.

• The engine is divided into four main parts

• These parts are the intake, compression, combustion, and exhaust

• Each part has its own specific function in the engine's operation

• The intake brings in air and fuel, the compression compresses the mixture, the combustion ignites the mixture, and the exhaust expels the waste gases

• The engine may also have additional parts such as the cooling ...read more

There are three types of piston rings: compression rings, oil control rings, and wiper rings.

• Compression rings seal the combustion chamber and prevent gases from escaping.

• Oil control rings regulate the amount of oil on the cylinder walls.

• Wiper rings scrape excess oil from the cylinder walls.

There are two types of piston rings - oil ring and compression ring.

• Oil ring is responsible for regulating the amount of oil that lubricates the cylinder walls.

• Compression ring seals the combustion chamber and prevents gases from escaping.

• Oil ring is located at the bottom of the piston while compression ring is located at the top.

• Both types of rings are made of high-strength materials like cast iron or steel.

• Proper maintenance of piston rings is crucial for engine performance...read more

Valves are devices used to control the flow of fluids in a system. There are several types of valves used in mechanical systems.

• Gate valves

• Globe valves

• Ball valves

• Butterfly valves

• Check valves

• Diaphragm valves

• Needle valves

• Pinch valves

There are two types of cylinders: single-acting and double-acting.

• Single-acting cylinders have one port for fluid to enter and exit, and use a spring or other external force to retract the piston.

• Double-acting cylinders have two ports for fluid to enter and exit, and use fluid pressure to both extend and retract the piston.

• Other types of cylinders include telescoping cylinders, rodless cylinders, and rotary cylinders.

• Telescoping cylinders have multiple stages that can extend ...read more