Yazaki Diploma Mechanical Engineer Interview Questions and Answers

The combustion chamber is where fuel and air are mixed and burned in an internal combustion engine.

• It is a part of an internal combustion engine where the fuel-air mixture is ignited and burned.

• The combustion chamber is designed to contain and control the combustion process.

• It is typically located within the cylinder head of an engine.

• The shape and design of the combustion chamber can affect engine performance and effi

Refrigerant system is a closed loop system that absorbs heat from a low-temperature area and releases it in a high-temperature area.

• Refrigerant circulates through the system to absorb and release heat

• Compressor increases the pressure of the refrigerant gas

• Condenser cools the refrigerant gas into a liquid

• Expansion valve reduces the pressure of the liquid refrigerant

• Evaporator absorbs heat from the surrounding area to co...read more

Most CNC machines have 3 or 5 axes, but some advanced machines can have up to 9 axes.

• Most common CNC machines have 3 axes: X, Y, and Z.

• Some CNC machines have 5 axes: X, Y, Z, A, and B.

• Advanced CNC machines can have up to 9 axes, including rotational axes for more complex operations.

• The number of axes in a CNC machine determines the complexity of the operations it can perform.

G and M codes are programming languages used in CNC machines to control various functions and operations.

• G codes are used to control the movement and positioning of the tool or workpiece on a CNC machine.

• M codes are used to activate or deactivate specific machine functions like coolant flow or spindle rotation.

• Example: G01 is a code for linear interpolation, while M03 is a code for spindle start in a CNC program.

First angle projection is commonly used in Europe and Asia, while third angle projection is commonly used in North America.

• First angle projection places the object in the first quadrant, with the plane of projection between the observer and the object.

• Third angle projection places the object in the third quadrant, with the plane of projection behind the object and the observer.

• In first angle projection, the top view is...read more

2 stroke engine completes the power cycle in 2 strokes of the piston, while 4 stroke engine completes it in 4 strokes.

• 2 stroke engine has intake, compression, power, and exhaust in 2 strokes

• 4 stroke engine has intake, compression, power, and exhaust in 4 strokes

• 2 stroke engines are simpler and lighter but less fuel efficient

• Examples of 2 stroke engines: chainsaws, mopeds, dirt bikes

• Examples of 4 stroke engines: cars, m

The least count of a digital vernier caliper is the smallest measurement that can be read on the scale.

• The least count of a digital vernier caliper is typically 0.01 mm or 0.0005 inches.

• It is determined by the number of divisions on the main scale and the number of divisions on the vernier scale.

• For example, if the main scale has 10 divisions and the vernier scale has 9 divisions, the least count would be 0.1 mm / 10 =

Measuring gauge is a tool used to measure dimensions accurately. Types include calipers, micrometers, and height gauges.

• Measuring gauge is a precision tool used to measure dimensions accurately.

• Types of measuring gauges include calipers, micrometers, height gauges, etc.

• Calipers are used for measuring the distance between two opposite sides of an object.

• Micrometers are used for measuring very small distances or thicknes...read more

Computer Numerical Control machine is a manufacturing process that uses pre-programmed computer software to control the movement of tools and machinery.

• CNC stands for Computer Numerical Control

• CNC machines are used in manufacturing processes to automate tasks such as cutting, drilling, and milling

• Examples of CNC machines include CNC routers, CNC mills, and CNC lathes

Induction motor works on the principle of electromagnetic induction to convert electrical energy into mechanical energy.

• Induction motor has a stator and a rotor

• Stator has a set of coils that are supplied with AC current

• This creates a rotating magnetic field which induces current in the rotor

• The rotor then starts rotating due to interaction with the magnetic field

• Induction motor is widely used in industries for various

My competencies include technical knowledge, problem-solving skills, attention to detail, and teamwork.

• Strong technical knowledge in electrical engineering principles and practices

• Ability to solve complex problems and troubleshoot electrical systems

• Attention to detail in design, testing, and documentation

• Collaborative teamwork skills to work effectively with colleagues and clients

• Proficiency in using electrical design ...read more

As a technical support, I provide prompt and efficient solutions to customer's electrical problems.

• Listen to the customer's problem and ask relevant questions to understand the issue

• Provide step-by-step instructions to troubleshoot the problem

• Offer remote assistance or schedule an on-site visit if necessary

• Ensure customer satisfaction by following up after the issue has been resolved