Engineering Mechanical Measurement

What are the different types of mechanical measurements?

• velocity

• pressure

• volume

• length, mass, time, temperature, electric current, luminous intensity, amount of substance

Explain the importance of metrology in mechanical engineering.

• Metrology is only used for estimating measurements in mechanical engineering

• Metrology is important in mechanical engineering for precise measurement, quality control, and compliance with standards.

• Metrology is primarily used for artistic purposes in mechanical engineering

• Metrology is not important in mechanical engineering

Name three common dimensional measurement tools used in engineering.

• Ruler

• Compass

• Protractor

• Vernier Caliper, Micrometer, Tape Measure

How does a micrometer differ from a caliper in terms of measurement range?

• Micrometer has a larger measurement range compared to a caliper.

• Micrometer has a smaller measurement range compared to a caliper.

• Caliper has a smaller measurement range compared to a micrometer.

• Micrometer and caliper have the same measurement range.

What is the purpose of using a dial indicator in mechanical measurements?

• The purpose of using a dial indicator in mechanical measurements is to accurately measure small distances or variations in dimensions.

• To calculate electrical resistance

• To determine chemical compositions

• To measure temperature variations

Describe the working principle of a vernier caliper.

• The working principle of a vernier caliper involves counting the number of divisions on the scale

• Vernier calipers work by estimating measurements based on visual alignment

• The Vernier scale is used to adjust the main scale for larger measurements

• The working principle of a vernier caliper is based on the Vernier scale, which provides more precise measurements by aligning the main scale with the Vernier scale to obtain accurate readings.

What is the significance of accuracy and precision in mechanical measurements?

• Accuracy ensures correctness, while precision ensures consistency and reliability in mechanical measurements.

• Accuracy and precision have no impact on the reliability of mechanical measurements

• Accuracy guarantees consistency, while precision ensures correctness

• Accuracy and precision are irrelevant in mechanical measurements

Discuss the role of surface roughness measurement in engineering applications.

• Surface roughness measurement is primarily used for determining color variations in engineering applications.

• Surface roughness measurement is vital for quality assessment, material properties determination, performance prediction, and ensuring proper functionality of components in engineering applications.

• Surface roughness measurement has no impact on the functionality of components in engineering applications.

• Surface roughness measurement is only used for aesthetic purposes in engineering applications.

How can optical measurement techniques be beneficial in mechanical engineering?

• Optical measurement techniques are prone to inaccuracies and errors in mechanical engineering applications.

• Optical measurement techniques are only suitable for large-scale projects in mechanical engineering.

• Optical measurement techniques are limited to measuring only one type of material in mechanical engineering.

• Optical measurement techniques offer non-contact, high-precision measurements without altering the object being measured, making them valuable for analyzing components, surfaces, and deformations in mechanical engineering.

Explain the concept of tolerance in dimensional measurements.

• Tolerance refers to the process of measuring dimensions with high precision.

• Tolerance in dimensional measurements is the acceptable range of variation allowed in a measurement.

• Tolerance is the exact measurement without any room for error.

• Tolerance is the term used for the error margin in measurements.