Madar Emirates for Building Materials Interview Questions and Answers

Different types of lines used in engineering drawing include object lines, hidden lines, center lines, dimension lines, and extension lines.

• Object lines are thick, continuous lines used to outline the shape of an object.

• Hidden lines are used to represent features that are not visible in the current view.

• Center lines are used to indicate the center of a circle or arc.

• Dimension lines show the size of an object or part.

• Extension lines are used to indicate the points between whic...read more

PLC is a specialized computer for industrial control while microcontroller is a small computer on a single integrated circuit.

• PLC is designed for industrial automation and control systems while microcontroller is used in various applications such as consumer electronics, automotive, and medical devices.

• PLC has a fixed set of inputs and outputs while microcontroller can be programmed to interface with various sensors and actuators.

• PLC is programmed using ladder logic or other ...read more

Measuring instruments are tools used to quantify, monitor, and record physical quantities such as length, weight, temperature, and time.

• Measuring instruments are used to ensure accuracy and consistency in measurements.

• Examples include rulers, thermometers, scales, stopwatches, and voltmeters.

• They can be analog or digital, depending on the type of measurement being taken.

• Calibration is important to ensure the accuracy of measuring instruments.

• Measuring instruments are essentia...read more

Least count is the smallest measurement that can be made using a measuring instrument.

• It is the smallest division that can be measured on a scale or instrument.

• It helps in determining the precision of the instrument.

• For example, if a ruler has a least count of 1 mm, it means that the smallest measurement that can be made is 1 mm.

CNC machine stands for Computer Numerical Control machine, which is a computer-controlled machine tool used for cutting and shaping materials.

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

• They operate based on pre-programmed computer software that controls the movement of the machine's tools.

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