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Measurement Tools and Techniques Quiz

#1

Which of the following is an example of a non-contact measurement tool?

Proximity sensor
Explanation

Utilizes electromagnetic fields to detect the presence or absence of an object without physical contact.

#2

Which of the following is a primary unit of measurement for mass in the International System of Units (SI)?

Kilogram
Explanation

Fundamental unit for expressing mass, defined as the mass of the international prototype of the kilogram.

#3

Which of the following is a common unit for measuring luminous intensity?

Candela
Explanation

Standard unit for measuring the intensity of light emitted in a particular direction.

#4

Which of the following is a common unit for measuring electrical capacitance?

Farad
Explanation

Unit of electrical capacitance, representing one coulomb of charge per volt of potential difference.

#5

What does the term 'resolution' refer to in measurement instruments?

The smallest detectable change in a quantity
Explanation

Defines the precision or smallest increment of measurement that an instrument can detect.

#6

In metrology, what does the acronym 'NIST' stand for?

National Institute of Standards and Technology
Explanation

Government agency responsible for promoting standards and technology in various fields.

#7

What is the purpose of a tachometer in measurement instruments?

Counting revolutions per minute (RPM)
Explanation

Measures the rotational speed of a shaft or disk.

#8

In surveying, what does a theodolite measure?

Direction or angle
Explanation

Instrument used for measuring both horizontal and vertical angles in surveying.

#9

Which instrument is commonly used for measuring electrical resistance?

Ohmmeter
Explanation

Specifically designed to measure electrical resistance in circuits.

#10

What is the purpose of a Vernier scale in measurement tools?

To improve accuracy in measurements
Explanation

Provides a means to make precise measurements by allowing interpolation between the divisions of the main scale.

#11

Which type of micrometer is specifically designed for measuring the thickness of objects like paper or sheet metal?

Thickness micrometer
Explanation

Optimized for accurately measuring the thickness of flat objects.

#12

What is the main function of a spectrophotometer?

Analyzing chemicals in a sample
Explanation

Measures the amount of light absorbed by a substance to determine its concentration or composition.

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