Mace Project and Cost Management Interview Questions and Answers

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

• The least count of a vernier caliper is usually 0.02 mm or 0.001 inches.

• It is determined by dividing the smallest division on the main scale by the number of divisions on the vernier scale.

• For example, if the main scale has divisions of 1 mm and the vernier scale has 50 divisions, the least count would be 0.02 mm.

• The least count is important for accurate measurements and should be con...read more

GD&T stands for Geometric Dimensioning and Tolerancing. The 7 QC tools are used for quality control, and the 5 core tools are used for quality engineering.

• GD&T is a system of symbols and rules used to define and communicate engineering tolerances.

• It ensures that parts and assemblies are manufactured and inspected correctly.

• The 7 QC tools are: Pareto Chart, Cause and Effect Diagram, Check Sheet, Control Chart, Histogram, Scatter Diagram, and Stratification.

• These tools help ide...read more

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

• It is usually 0.01 mm or 0.001 mm depending on the micrometer.

• The least count can be calculated by dividing the smallest division on the scale by the number of divisions on the thimble.

• For example, if the smallest division on the scale is 0.1 mm and there are 50 divisions on the thimble, the least count would be 0.002 mm.

The 7 QC tools are basic problem-solving tools used in quality control and quality management.

• Check sheets: Used to collect and organize data

• Pareto charts: Used to identify the most frequent problems or defects

• Cause-and-effect diagrams: Used to identify the root cause of a problem

• Histograms: Used to display data in a frequency distribution

• Scatter diagrams: Used to identify a relationship between two variables

• Control charts: Used to monitor a process over time

• Flowcharts: Used ...read more

To operate a CNC machine, you need to program it, set up the workpiece, and run the program.

• Create a program using CAM software or manually code it

• Load the program into the CNC machine

• Set up the workpiece and tools

• Run the program and monitor the machine

• Make adjustments as necessary

There are several types of CNC machines used in manufacturing and engineering.

• CNC milling machines

• CNC lathes

• CNC routers

• CNC plasma cutters

• CNC EDM machines

• CNC grinders

• CNC drilling machines

• CNC turning centers

• CNC Swiss machines

• CNC punch presses