10+ CNC Operator Interview Questions and Answers for Freshers

I have operated various types of CNC machines including milling machines, lathes, and routers.

• I have experience operating milling machines, which are used to remove material from a workpiece using rotary cutters.

• I have also operated lathes, which are used to shape a workpiece by rotating it against a cutting tool.

• Additionally, I have worked with routers, which are used to hollow out an area of a workpiece.

• I am familiar with programming and setting up these machines, as well a...read more

CNC stands for Computer Numerical Control. G-code and M-code are programming languages used in CNC machines. Least count of vernier caliper is the smallest measurement that can be read. 1 cm is equal to 10 mm.

• CNC is a manufacturing process that uses computerized controls to operate machines.

• G-code is a programming language used to control the movement and operation of CNC machines.

• M-code is a programming language used to control auxiliary functions of CNC machines.

• Least count...read more

There are various types of CNC machines used in different industries.

• CNC milling machines

• CNC turning machines

• CNC plasma cutting machines

• CNC laser cutting machines

• CNC routers

• CNC lathes

• CNC grinders

• CNC drilling machines

• CNC EDM machines

I have used several development tools including AutoCAD, SolidWorks, and Mastercam.

• AutoCAD

• SolidWorks

• Mastercam

There are two types of upsets: positive upsets and negative upsets.

• Positive upsets occur when the workpiece is larger than expected, causing interference with the tool or machine.

• Negative upsets occur when the workpiece is smaller than expected, leading to inaccurate machining or potential damage.

• Examples: Positive upset - workpiece is oversized due to material expansion. Negative upset - workpiece is undersized due to material shrinkage.

CNC stands for Computer Numerical Control and VMC stands for Vertical Machining Center. Both are machines used in manufacturing processes.

• CNC machines are automated tools that use pre-programmed software to control movement of tools and machinery.

• VMC machines are a type of CNC machine that have a vertical spindle axis, allowing for precision cutting and drilling.

• CNC and VMC machines are used in a variety of industries, including automotive, aerospace, and medical device manuf...read more

CNC stands for Computer Numerical Control.

• CNC is a manufacturing process that uses pre-programmed computer software to control the movement of machines.

• It is used in various industries such as automotive, aerospace, and electronics.

• CNC machines can perform tasks such as drilling, cutting, and milling with high precision and accuracy.

• Examples of CNC machines include lathes, routers, and plasma cutters.

CNC stands for Computer Numerical Control. It is a manufacturing process that uses pre-programmed computer software to control the movement of machines.

• CNC is a manufacturing process that automates machine tools.

• It uses computer software to control the movement of machines.

• CNC machines are commonly used in industries like automotive, aerospace, and electronics.

• Examples of CNC machines include CNC mills, lathes, routers, and plasma cutters.

A thermal power plant is a facility that generates electricity by converting heat energy into electrical energy.

• Uses fossil fuels like coal, oil, and natural gas to heat water and produce steam

• Steam drives turbines which generate electricity

• Produces large amounts of greenhouse gases and other pollutants

• Examples include the Drax Power Station in the UK and the Taichung Power Plant in Taiwan

Nuclear power plants are used to generate electricity by harnessing the energy released from nuclear reactions.

• Electricity generation

• Research and development

• Medical isotopes production

• Desalination of water

• Space exploration

• Propulsion for ships and submarines

Thermal power plants are advantageous due to their high efficiency and reliability.

• High efficiency in converting fuel to electricity

• Reliable source of power

• Can be operated continuously for long periods of time

• Can be used to meet peak demand for electricity

• Can use a variety of fuels such as coal, natural gas, and oil

• Can be located near the source of fuel to reduce transportation costs

A CNC machine is a computer-controlled machine tool used for cutting, shaping, and finishing materials like metal, wood, or plastic.

• CNC stands for Computer Numerical Control

• It uses coded instructions to control the movement of the cutting tool

• Common types include CNC milling machines and CNC lathes

• CNC machines are widely used in manufacturing and prototyping industries

The micrometer reading for the component is [insert measurement here].

• Ensure the micrometer is calibrated before taking the reading.

• Record the measurement accurately to avoid errors.

• Compare the reading to the component's specifications to ensure it meets requirements.

CNC stands for Computer Numerical Control and VMC stands for Vertical Machining Center. VMC is a type of CNC machine.

• CNC is a general term for machines that use computer controls to perform various tasks.

• VMC is a type of CNC machine that has a vertical spindle axis, making it ideal for cutting and drilling into materials from above.

• CNC machines can be used for a variety of tasks, including cutting, drilling, milling, and more.

• VMC machines are commonly used in the manufacturin...read more